zgrat | 7d5b240d3b2b433f3fad16edde2f1c71e8cfaa6d7d7d018cae8690d85af30011

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
13/11/2023, 10:46

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Report Analysis Logs

General

Target

BKOffice-master/_install.bat
Size

7KB
MD5

696f9859c1528447f7fd54f767c81f3e
SHA1

339606c51e5d9e941fddd8e0c855f6fc278999d1
SHA256

2f29f09ffacf277c28c7e6a2b49a5d98279b90fde239a21ab92551525229ddf3
SHA512

e0e23cee67d4121fc967eeccf035c4fb3758715891e2846be0f0d474ff4bd68e2a9b5b032a2fad9a71ec5a48a4ffb9b68f0f8a51a593064bdbaffb74ee700617
SSDEEP

96:H2oG08RPQrSu0a5Aqtbf9IISFDHl/dLGWu+A3A/LDLwL6XLALUL/LHLZXLsTpqw:BG08RPah3ARs5

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 2 IoCs

resource	yara_rule
behavioral22/memory/4404-4-0x0000000005740000-0x0000000005AC4000-memory.dmp	family_zgrat_v1
behavioral22/memory/4400-11-0x000001DE7F140000-0x000001DE7F4C4000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral22/memory/4404-4-0x0000000005740000-0x0000000005AC4000-memory.dmp	net_reactor
behavioral22/memory/4400-11-0x000001DE7F140000-0x000001DE7F4C4000-memory.dmp	net_reactor

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Control Panel\International\Geo\Nation	mshta.exe

Registers COM server for autorun 1 TTPs 64 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DEE25F16-6E3B-3A41-A76D-755E1FB2B5AE}\InprocServer32\1.0.0.0	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{335EE8E1-CFAE-3E07-85F4-66F2D49B609F}\InprocServer32	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{BAD5FDCB-3484-4996-8288-A9E705C26E0D}\InprocServer32\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{140BD1B7-EB1F-3028-809E-1BF329F6FF76}\InprocServer32\1.0.0.0\Class = "BKOffice.ScriptObject+DownloadResult"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{ACDCE3A2-8364-36C3-AD68-47DDCDAEB8CB}\InprocServer32\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\InprocServer32\ = "mscoree.dll"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D33EC6C2-6A5D-3F84-980C-8BFB931B17BD}\InprocServer32\ThreadingModel = "Both"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{BAD5FDCB-3484-4996-8288-A9E705C26E0D}\InprocServer32\Class = "BKOffice.Excel"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{7964DF68-F1DB-3C06-88BF-9C26389F5876}\InprocServer32\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{ACDCE3A2-8364-36C3-AD68-47DDCDAEB8CB}\InprocServer32\Class = "BKOffice.TypeSet"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}\InprocServer32\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{70D82B2F-A263-4B04-8CA9-0398B57720A5}\InprocServer32\1.0.0.0\Class = "BKOffice.BaseControl"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1B8D13B4-099C-366F-ACD6-13427A646F3B}\InprocServer32\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{AAAE3085-383C-4482-9819-9FD4323AD70E}\InprocServer32\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{335EE8E1-CFAE-3E07-85F4-66F2D49B609F}\InprocServer32\ = "mscoree.dll"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1B8D13B4-099C-366F-ACD6-13427A646F3B}\InprocServer32\1.0.0.0\Class = "BKOffice.ScriptObjectExcel"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{AAAE3085-383C-4482-9819-9FD4323AD70E}\InprocServer32\ = "mscoree.dll"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\InprocServer32\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\InprocServer32\1.0.0.0\Class = "BKOffice.Cache"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DEE25F16-6E3B-3A41-A76D-755E1FB2B5AE}\InprocServer32	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}\InprocServer32\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\InprocServer32\Class = "BKOffice.Cache"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{140BD1B7-EB1F-3028-809E-1BF329F6FF76}\InprocServer32	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{BAD5FDCB-3484-4996-8288-A9E705C26E0D}\InprocServer32\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{7964DF68-F1DB-3C06-88BF-9C26389F5876}\InprocServer32\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}\InprocServer32\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}\InprocServer32\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\InprocServer32\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D33EC6C2-6A5D-3F84-980C-8BFB931B17BD}\InprocServer32\1.0.0.0\Class = "BKOffice.ScriptObjectPPT"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DEE25F16-6E3B-3A41-A76D-755E1FB2B5AE}\InprocServer32\1.0.0.0\Class = "BKOffice.CustomTextBox"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{335EE8E1-CFAE-3E07-85F4-66F2D49B609F}\InprocServer32\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{BAD5FDCB-3484-4996-8288-A9E705C26E0D}\InprocServer32\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\InprocServer32\ = "mscoree.dll"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DEE25F16-6E3B-3A41-A76D-755E1FB2B5AE}\InprocServer32\Class = "BKOffice.CustomTextBox"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{BAD5FDCB-3484-4996-8288-A9E705C26E0D}\InprocServer32\ThreadingModel = "Both"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{BAD5FDCB-3484-4996-8288-A9E705C26E0D}\InprocServer32\1.0.0.0	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\InprocServer32\1.0.0.0	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\InprocServer32	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1B8D13B4-099C-366F-ACD6-13427A646F3B}\InprocServer32	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{ACDCE3A2-8364-36C3-AD68-47DDCDAEB8CB}\InprocServer32\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\InprocServer32\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{7964DF68-F1DB-3C06-88BF-9C26389F5876}\InprocServer32\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{ACDCE3A2-8364-36C3-AD68-47DDCDAEB8CB}\InprocServer32\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{140BD1B7-EB1F-3028-809E-1BF329F6FF76}\InprocServer32\Class = "BKOffice.ScriptObject+DownloadResult"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{140BD1B7-EB1F-3028-809E-1BF329F6FF76}\InprocServer32\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{70D82B2F-A263-4B04-8CA9-0398B57720A5}\InprocServer32\ThreadingModel = "Both"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{70D82B2F-A263-4B04-8CA9-0398B57720A5}\InprocServer32\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DEE25F16-6E3B-3A41-A76D-755E1FB2B5AE}\InprocServer32\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1B8D13B4-099C-366F-ACD6-13427A646F3B}\InprocServer32\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{DEE25F16-6E3B-3A41-A76D-755E1FB2B5AE}\InprocServer32\ThreadingModel = "Both"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{140BD1B7-EB1F-3028-809E-1BF329F6FF76}\InprocServer32\ThreadingModel = "Both"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}\InprocServer32\ = "mscoree.dll"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\InprocServer32\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\InprocServer32\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{140BD1B7-EB1F-3028-809E-1BF329F6FF76}\InprocServer32\ = "mscoree.dll"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{ACDCE3A2-8364-36C3-AD68-47DDCDAEB8CB}\InprocServer32	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{ACDCE3A2-8364-36C3-AD68-47DDCDAEB8CB}\InprocServer32\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\InprocServer32\Class = "BKOffice.Word"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{70D82B2F-A263-4B04-8CA9-0398B57720A5}\InprocServer32\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{70D82B2F-A263-4B04-8CA9-0398B57720A5}\InprocServer32\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{AAAE3085-383C-4482-9819-9FD4323AD70E}\InprocServer32\1.0.0.0\Class = "BKOffice.PPT"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{7964DF68-F1DB-3C06-88BF-9C26389F5876}\InprocServer32	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D33EC6C2-6A5D-3F84-980C-8BFB931B17BD}\InprocServer32\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{7964DF68-F1DB-3C06-88BF-9C26389F5876}\InprocServer32\ThreadingModel = "Both"	RegAsm.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{45F2ED98-F126-47EF-9521-420DD5D364AF}\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{2AEE11C6-2606-3983-A915-EC1F811A5F9F}\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\InprocServer32	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\InprocServer32	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{68CF3B66-38FC-4CC7-88CA-07C394CC6A4A}\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}\ProgId	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\ProgId	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{54F70471-7F58-3138-A903-C6679A2C9399}\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{2BD2A4AD-8DF7-3949-BF44-C9D6AA7670BC}\1.0.0.0\Class = "Microsoft.Office.Core.MsoTriState"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{2A487F67-F7AB-3055-B898-2D046730651C}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{4E733EC0-1ECB-376E-A6FD-74F14BBCE961}\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{4290D45B-433A-452F-8402-447FD15187E0}\1.0.0.0\Class = "Microsoft.Office.Interop.PowerPoint.MsoAnimateByLevel"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{8DCC10CB-1A6F-3704-BE5A-66ED2C3C79E5}\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{C6299A67-B8E3-35C1-8F89-DBA68AC9C7BD}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{4927EA82-23FB-4F6F-9C8B-4204CEB23D21}\1.0.0.0	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{4D3B1125-0435-3EBE-8958-A58F6780E73F}\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{7E46DC5F-5288-3963-9F31-AF7EBD40E4DA}\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{82C4D190-4551-3A34-8A1F-96B99A092037}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{E4B17A7A-02C2-3E06-B556-B111497F2DD1}	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}\Implemented Categories	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70D82B2F-A263-4B04-8CA9-0398B57720A5}	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{09481515-9FAE-3B0F-A9AA-3D34413990D8}\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{98D4DFF4-618F-3FBD-B889-4450AB0D51C0}\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{BAD5FDCB-3484-4996-8288-A9E705C26E0D}\ = "BKOffice.Excel"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{43654DA4-78F8-30E7-8975-D4AEB069B82D}\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{45F2ED98-F126-47EF-9521-420DD5D364AF}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{F17CCA8D-53CD-3085-B242-F4E81EA99ECC}	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{F0492E24-F28A-334D-9E03-8F8D6D4689DA}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\Implemented Categories	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{F17CCA8D-53CD-3085-B242-F4E81EA99ECC}\1.0.0.0\Class = "Microsoft.Office.Interop.Word.WdColor"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{70D82B2F-A263-4B04-8CA9-0398B57720A5}\ProgId	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{AB838C75-7735-3843-BF3D-DE56B049931B}\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{6B528980-9686-3F2F-8838-B3AEA0B64F96}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{00F45038-E322-39BB-B256-BF910E3736F4}	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{82C4D190-4551-3A34-8A1F-96B99A092037}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DEE25F16-6E3B-3A41-A76D-755E1FB2B5AE}\InprocServer32\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{9B82F065-126B-313D-BAA2-C7064A4B0AC5}\1.0.0.0\Class = "Microsoft.Office.Interop.Word.WdLineWidth"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{313FCD1B-9E7B-3780-893B-A1ED02662900}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{2E3C3358-E804-3EAC-BABD-F52300CD23F7}\ProgId	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{D33EC6C2-6A5D-3F84-980C-8BFB931B17BD}\InprocServer32\ThreadingModel = "Both"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{7D37998C-6EFF-3C13-9A0A-F8A146A07BDB}\1.0.0.0\Class = "Microsoft.Office.Interop.Word.WdPageNumberStyle"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAAE3085-383C-4482-9819-9FD4323AD70E}	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{54F70471-7F58-3138-A903-C6679A2C9399}\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{3184B5FA-9722-3C0A-A17B-3A19E4177142}\1.0.0.0\RuntimeVersion = "v4.0.30319"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{0CE90291-4F88-3F80-A315-46140D50A90E}\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{1939E78B-5C40-3E1D-A3A5-CA5BBBB7CD8E}\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAAE3085-383C-4482-9819-9FD4323AD70E}\InprocServer32\1.0.0.0\Assembly = "BKOffice, Version=1.0.0.0, Culture=neutral, PublicKeyToken=9bfa06c81cbdc6f5"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{49EC25A5-8082-391C-99D7-E79DBB83383E}\1.0.0.0	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{54F70471-7F58-3138-A903-C6679A2C9399}\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{A0C41B51-EBD2-33CA-962F-8456A2554FE4}\1.0.0.0\Class = "Microsoft.Office.Interop.Excel.XlSortOrientation"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{F53E5C6B-898C-36A8-8F98-4A4B4B9085E2}\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1B8D13B4-099C-366F-ACD6-13427A646F3B}	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{AAAE3085-383C-4482-9819-9FD4323AD70E}\InprocServer32\ = "mscoree.dll"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{7964DF68-F1DB-3C06-88BF-9C26389F5876}	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{AAAE3085-383C-4482-9819-9FD4323AD70E}\InprocServer32\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{140BD1B7-EB1F-3028-809E-1BF329F6FF76}\ProgId\ = "BKOffice.ScriptObject+DownloadResult"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{C6299A67-B8E3-35C1-8F89-DBA68AC9C7BD}	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{43654DA4-78F8-30E7-8975-D4AEB069B82D}	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1548D5DA-24B2-4139-B917-C1B828091C94}\InprocServer32\1.0.0.0\Class = "BKOffice.Word"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D33EC6C2-6A5D-3F84-980C-8BFB931B17BD}\InprocServer32	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Record\{E96D7050-309A-3DD2-AC72-1E7C654FD904}\1.0.0.0\CodeBase = "file:///C:/Users/Admin/AppData/Local/Temp/BKOffice-master/BKOffice.DLL"	RegAsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{AAAE3085-383C-4482-9819-9FD4323AD70E}\InprocServer32\Class = "BKOffice.PPT"	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{87541703-A352-37D1-AC64-2F5BF6FC504E}	RegAsm.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3556	reg.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 912	1008	cmd.exe	87
PID 1008 wrote to memory of 912	1008	cmd.exe	87
PID 912 wrote to memory of 3552	912	mshta.exe	91
PID 912 wrote to memory of 3552	912	mshta.exe	91
PID 3552 wrote to memory of 824	3552	cmd.exe	93
PID 3552 wrote to memory of 824	3552	cmd.exe	93
PID 824 wrote to memory of 3556	824	cmd.exe	94
PID 824 wrote to memory of 3556	824	cmd.exe	94
PID 3552 wrote to memory of 4404	3552	cmd.exe	95
PID 3552 wrote to memory of 4404	3552	cmd.exe	95
PID 3552 wrote to memory of 4404	3552	cmd.exe	95
PID 3552 wrote to memory of 4400	3552	cmd.exe	98
PID 3552 wrote to memory of 4400	3552	cmd.exe	98
PID 3552 wrote to memory of 4360	3552	cmd.exe	99
PID 3552 wrote to memory of 4360	3552	cmd.exe	99
PID 3552 wrote to memory of 4716	3552	cmd.exe	102
PID 3552 wrote to memory of 4716	3552	cmd.exe	102
PID 3552 wrote to memory of 3076	3552	cmd.exe	100
PID 3552 wrote to memory of 3076	3552	cmd.exe	100
PID 3552 wrote to memory of 644	3552	cmd.exe	101
PID 3552 wrote to memory of 644	3552	cmd.exe	101
PID 3552 wrote to memory of 1560	3552	cmd.exe	137
PID 3552 wrote to memory of 1560	3552	cmd.exe	137
PID 3552 wrote to memory of 3744	3552	cmd.exe	105
PID 3552 wrote to memory of 3744	3552	cmd.exe	105
PID 3552 wrote to memory of 1188	3552	cmd.exe	108
PID 3552 wrote to memory of 1188	3552	cmd.exe	108
PID 3552 wrote to memory of 4580	3552	cmd.exe	107
PID 3552 wrote to memory of 4580	3552	cmd.exe	107
PID 3552 wrote to memory of 532	3552	cmd.exe	106
PID 3552 wrote to memory of 532	3552	cmd.exe	106
PID 3552 wrote to memory of 2616	3552	cmd.exe	136
PID 3552 wrote to memory of 2616	3552	cmd.exe	136
PID 3552 wrote to memory of 2276	3552	cmd.exe	135
PID 3552 wrote to memory of 2276	3552	cmd.exe	135
PID 3552 wrote to memory of 1208	3552	cmd.exe	134
PID 3552 wrote to memory of 1208	3552	cmd.exe	134
PID 3552 wrote to memory of 396	3552	cmd.exe	109
PID 3552 wrote to memory of 396	3552	cmd.exe	109
PID 3552 wrote to memory of 552	3552	cmd.exe	133
PID 3552 wrote to memory of 552	3552	cmd.exe	133
PID 3552 wrote to memory of 1852	3552	cmd.exe	132
PID 3552 wrote to memory of 1852	3552	cmd.exe	132
PID 3552 wrote to memory of 4028	3552	cmd.exe	131
PID 3552 wrote to memory of 4028	3552	cmd.exe	131
PID 3552 wrote to memory of 4804	3552	cmd.exe	110
PID 3552 wrote to memory of 4804	3552	cmd.exe	110
PID 3552 wrote to memory of 3216	3552	cmd.exe	130
PID 3552 wrote to memory of 3216	3552	cmd.exe	130
PID 3552 wrote to memory of 3920	3552	cmd.exe	145
PID 3552 wrote to memory of 3920	3552	cmd.exe	145
PID 3552 wrote to memory of 4328	3552	cmd.exe	112
PID 3552 wrote to memory of 4328	3552	cmd.exe	112
PID 3552 wrote to memory of 1448	3552	cmd.exe	111
PID 3552 wrote to memory of 1448	3552	cmd.exe	111
PID 3552 wrote to memory of 3168	3552	cmd.exe	129
PID 3552 wrote to memory of 3168	3552	cmd.exe	129
PID 3552 wrote to memory of 516	3552	cmd.exe	128
PID 3552 wrote to memory of 516	3552	cmd.exe	128
PID 3552 wrote to memory of 2640	3552	cmd.exe	114
PID 3552 wrote to memory of 2640	3552	cmd.exe	114
PID 3552 wrote to memory of 3500	3552	cmd.exe	116
PID 3552 wrote to memory of 3500	3552	cmd.exe	116
PID 3552 wrote to memory of 4808	3552	cmd.exe	115

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\BKOffice-master\_install.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Windows\system32\mshta.exe
  mshta vbscript:CreateObject("Shell.Application").ShellExecute("cmd.exe","/c C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\_install.bat ::","","runas",1)(window.close)
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\_install.bat ::
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3552
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c REG QUERY HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319\SKUs
      4⤵
      Suspicious use of WriteProcessMemory
      PID:824
    - - C:\Windows\system32\reg.exe
        
        REG QUERY HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319\SKUs
        5⤵
        Modifies registry key
        
        PID:3556
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe /codebase C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\BKOffice.dll
      4⤵
      Modifies registry class
      PID:4404
  - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\regasm.exe /codebase C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\BKOffice.dll
      4⤵
      Registers COM server for autorun
      Modifies registry class
      PID:4400
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Word\Addins\BKOffice.Word" /f
      4⤵
      PID:4360
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Word\Addins\BKOffice.Word" /v "Description" /t REG_SZ /d "▓╗┐╙└╧╩ª╬¬┤≤╝╥┐¬╖ó╓╞╫≈╡─Office╨º┬╩╣ñ╫≈" /f
      4⤵
      PID:3076
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Word\Addins\BKOffice.Word" /v "LoadBehavior" /t REG_DWORD /d "3" /f
      4⤵
      PID:644
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Word\Addins\BKOffice.Word" /v "FriendlyName" /t REG_SZ /d "▓╗┐╙║╨╫╙" /f
      4⤵
      PID:4716
  - - C:\Windows\system32\reg.exe
      reg copy "HKEY_CURRENT_USER\Software\Microsoft\Office\Word\Addins\BKOffice.Word" "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Word\Addins\BKOffice.Word" /s /f
      4⤵
      PID:3744
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Excel\Addins\BKOffice.Excel" /v "Description" /t REG_SZ /d "▓╗┐╙└╧╩ª╬¬┤≤╝╥┐¬╖ó╓╞╫≈╡─Office╨º┬╩╣ñ╫≈" /f
      4⤵
      PID:532
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Excel\Addins\BKOffice.Excel" /v "FriendlyName" /t REG_SZ /d "▓╗┐╙║╨╫╙" /f
      4⤵
      PID:4580
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Excel\Addins\BKOffice.Excel" /f
      4⤵
      PID:1188
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\PowerPoint\Addins\BKOffice.PPT" /f
      4⤵
      PID:396
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\PowerPoint\Addins\BKOffice.PPT" /v "CommandLineSafe" /t REG_DWORD /d "1" /f
      4⤵
      PID:4804
  - - C:\Windows\system32\reg.exe
      reg copy "HKEY_CURRENT_USER\Software\Kingsoft\Office\WPS\AddinsWL" "HKEY_LOCAL_MACHINE\Software\Kingsoft\Office\WPS\AddinsWL" /s /f
      4⤵
      PID:1448
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\Kingsoft\Office\WPS\AddinsWL" /v "BKOffice.Word" /t REG_SZ /d "" /f
      4⤵
      PID:4328
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\Kingsoft\Office\WPS\AddinsWL" /f
      4⤵
      PID:3920
  - - C:\Windows\system32\reg.exe
      reg copy "HKEY_CURRENT_USER\Software\Kingsoft\Office\ET\AddinsWL" "HKEY_LOCAL_MACHINE\Software\Kingsoft\Office\ET\AddinsWL" /s /f
      4⤵
      PID:2640
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\Kingsoft\Office\WPP\AddinsWL" /v "BKOffice.PPT" /t REG_SZ /d "" /f
      4⤵
      PID:4808
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\Kingsoft\Office\WPP\AddinsWL" /f
      4⤵
      PID:3500
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /v "Publisher" /t REG_SZ /d "▓╗┐╙└╧╩ª" /f
      4⤵
      PID:3788
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /v "UninstallString" /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\_uninstall.bat /f
      4⤵
      PID:2668
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /v "InstallLocation" /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\ /f
      4⤵
      PID:4064
  - - C:\Windows\System32\wscript.exe
      "C:\Windows\System32\WScript.exe" //NoLogo ""C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\\CreateShortcut.vbs"
      4⤵
      PID:4164
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /v "URLInfoAbout" /t REG_SZ /d "https://www.bukenghezi.com" /f
      4⤵
      PID:4220
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /v "EstimatedSize" /t REG_DWORD /d "11045" /f
      4⤵
      PID:4308
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /v "DisplayVersion" /t REG_SZ /d "2023.1001" /f
      4⤵
      PID:4436
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /v "DisplayIcon" /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\logo.ico /f
      4⤵
      PID:1784
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /v "DisplayName" /t REG_SZ /d "▓╗┐╙║╨╫╙" /f
      4⤵
      PID:5052
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BKOFfice" /f
      4⤵
      PID:224
  - - C:\Windows\system32\reg.exe
      reg copy "HKEY_CURRENT_USER\Software\Kingsoft\Office\WPP\AddinsWL" "HKEY_LOCAL_MACHINE\Software\Kingsoft\Office\WPP\AddinsWL" /s /f
      4⤵
      PID:232
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\Kingsoft\Office\ET\AddinsWL" /v "BKOffice.Excel" /t REG_SZ /d "" /f
      4⤵
      PID:516
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\Kingsoft\Office\ET\AddinsWL" /f
      4⤵
      PID:3168
  - - C:\Windows\system32\reg.exe
      reg copy "HKEY_CURRENT_USER\Software\Microsoft\Office\PowerPoint\Addins\BKOffice.PPT" "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\PowerPoint\Addins\BKOffice.PPT" /s /f
      4⤵
      PID:3216
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\PowerPoint\Addins\BKOffice.PPT" /v "LoadBehavior" /t REG_DWORD /d "3" /f
      4⤵
      PID:4028
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\PowerPoint\Addins\BKOffice.PPT" /v "Description" /t REG_SZ /d "▓╗┐╙└╧╩ª╬¬┤≤╝╥┐¬╖ó╓╞╫≈╡─Office╨º┬╩╣ñ╫≈" /f
      4⤵
      PID:1852
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\PowerPoint\Addins\BKOffice.PPT" /v "FriendlyName" /t REG_SZ /d "▓╗┐╙║╨╫╙" /f
      4⤵
      PID:552
  - - C:\Windows\system32\reg.exe
      reg copy "HKEY_CURRENT_USER\Software\Microsoft\Office\Excel\Addins\BKOffice.Excel" "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Excel\Addins\BKOffice.Excel" /s /f
      4⤵
      PID:1208
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Excel\Addins\BKOffice.Excel" /v "CommandLineSafe" /t REG_DWORD /d "1" /f
      4⤵
      PID:2276
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Excel\Addins\BKOffice.Excel" /v "LoadBehavior" /t REG_DWORD /d "3" /f
      4⤵
      PID:2616
  - - C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Word\Addins\BKOffice.Word" /v "CommandLineSafe" /t REG_DWORD /d "1" /f
      4⤵
      PID:1560

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:3920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\BKOFFI~1\CreateShortcut.vbs

Filesize
547B

MD5
3b9d30a7ca6e14cd5133cdcdd5d15144

SHA1
34cbae570aeea97d823e4118cc10e9795d97f336

SHA256
d42a19695ad4bb22f7468b524b68d69e4e03c223d0e6eb5773a01acf692bcc32

SHA512
413ed55f3f839aab6a4f80e5ce0a8cd4ad5794b661e873d18928036843c7c1fc0d469cee79b6ac8cbfccb98b19d520ac3d51cc2ac72419644579281bedddd274

Download Submit
memory/4400-10-0x000001DE64790000-0x000001DE647A0000-memory.dmp

Filesize
64KB

Download
memory/4400-11-0x000001DE7F140000-0x000001DE7F4C4000-memory.dmp

Filesize
3.5MB

Download
memory/4400-12-0x00007FFA2C610000-0x00007FFA2D0D1000-memory.dmp

Filesize
10.8MB

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memory/4400-14-0x00007FFA2C610000-0x00007FFA2D0D1000-memory.dmp

Filesize
10.8MB

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memory/4404-2-0x0000000000910000-0x0000000000922000-memory.dmp

Filesize
72KB

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memory/4404-3-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

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memory/4404-4-0x0000000005740000-0x0000000005AC4000-memory.dmp

Filesize
3.5MB

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memory/4404-5-0x0000000006080000-0x0000000006624000-memory.dmp

Filesize
5.6MB

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memory/4404-6-0x00000000054D0000-0x0000000005562000-memory.dmp

Filesize
584KB

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memory/4404-7-0x0000000005610000-0x00000000056AC000-memory.dmp

Filesize
624KB

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memory/4404-9-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads