5618afe14e9cba0b7fb2440af72f7cc906df7644ede42d6dab9696a037a61380

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02/01/2024, 17:59

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General

Target

3ea30d166213807059e7bec3f8a946c6.exe
Size

672KB
MD5

3ea30d166213807059e7bec3f8a946c6
SHA1

00c5a7247658a80ebe23594665b5c12633216ea9
SHA256

5618afe14e9cba0b7fb2440af72f7cc906df7644ede42d6dab9696a037a61380
SHA512

bdb8573d9a332ca9667ec7faa50245ff6daf5a7c60e92e5b6b26371217d8041f9eb1b8d5f77aa56d0ea3f20ebde0a3cdd77e69edbeebf322ffef1d9ba36c8cbb
SSDEEP

6144:+uIL4XOrbL8uuOpsPHhhtQDdINgP2iMjz5qBHswNet4KunyRWlpkD5taIA:+7lr07Ys/hhtudFWJIHZNeyKuiW8D

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\WINDOWS\\Config\\csrss.exe"	3ea30d166213807059e7bec3f8a946c6.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3ea30d166213807059e7bec3f8a946c6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	3ea30d166213807059e7bec3f8a946c6.exe

Loads dropped DLL 4 IoCs

pid	Process
2056	3ea30d166213807059e7bec3f8a946c6.exe
2056	3ea30d166213807059e7bec3f8a946c6.exe
2056	3ea30d166213807059e7bec3f8a946c6.exe
2056	3ea30d166213807059e7bec3f8a946c6.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2056-0-0x0000000000400000-0x00000000004DF000-memory.dmp	upx
behavioral1/memory/2056-9-0x0000000000400000-0x00000000004DF000-memory.dmp	upx
behavioral1/memory/2056-10-0x0000000000400000-0x00000000004DF000-memory.dmp	upx
behavioral1/memory/2056-12-0x0000000000400000-0x00000000004DF000-memory.dmp	upx
behavioral1/memory/2056-29-0x0000000000400000-0x00000000004DF000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\SysWOW64\MSWINSCK.OCX	3ea30d166213807059e7bec3f8a946c6.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\Config\csrss.exe	3ea30d166213807059e7bec3f8a946c6.exe
File created	C:\WINDOWS\Config\csrss.exe	3ea30d166213807059e7bec3f8a946c6.exe

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\HELPDIR	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ToolboxBitmap32	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{40FC6ED4-2438-11CF-A3DB-080036F12502}	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\ = "Constructor for Scriptlet Automation Handler"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A53-2BAA-11CF-A229-00AA003D7352}	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Control	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\Version = "1.0"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\MSWINSCK.OCX"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\HELPDIR\	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ = "IMSWinsockControl"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\ThreadingModel = "Apartment"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ProgID\ = "MSWinsock.Winsock.1"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\ = "Microsoft Winsock Control 6.0 (SP6)"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\0\win32	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CLSID\ = "{248DD896-BB45-11CF-9ABC-0080C7E7B78D}"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CurVer	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{40FC6ED5-2438-11CF-A3DB-080036F12502}	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus\ = "0"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Implemented Categories\{0DE86A52-2BAA-11CF-A229-00AA003D7352}	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\InprocServer32\ThreadingModel = "Apartment"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\CLSID	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\Programmable	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus\1	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1\CLSID\ = "{248DD896-BB45-11CF-9ABC-0080C7E7B78D}"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\ProgID	3ea30d166213807059e7bec3f8a946c6.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD897-BB45-11CF-9ABC-0080C7E7B78D}	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}\	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\VersionIndependentProgID	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{248DD896-BB45-11CF-9ABC-0080C7E7B78D}\MiscStatus\1\ = "132497"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\FLAGS\ = "2"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD893-BB45-11CF-9ABC-0080C7E7B78D}\TypeLib\ = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock\ = "Microsoft WinSock Control, version 6.0 (SP6)"	3ea30d166213807059e7bec3f8a946c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{248DD892-BB45-11CF-9ABC-0080C7E7B78D}\ProxyStubClsid32	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSWinsock.Winsock.1\CLSID	3ea30d166213807059e7bec3f8a946c6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{248DD890-BB45-11CF-9ABC-0080C7E7B78D}\1.0\0	3ea30d166213807059e7bec3f8a946c6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2056	3ea30d166213807059e7bec3f8a946c6.exe
Token: SeIncBasePriorityPrivilege	2056	3ea30d166213807059e7bec3f8a946c6.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2056	3ea30d166213807059e7bec3f8a946c6.exe

C:\Users\Admin\AppData\Local\Temp\3ea30d166213807059e7bec3f8a946c6.exe
"C:\Users\Admin\AppData\Local\Temp\3ea30d166213807059e7bec3f8a946c6.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\SysWOW64\MSWINSCK.OCX

Filesize
121KB

MD5
e8a2190a9e8ee5e5d2e0b599bbf9dda6

SHA1
4e97bf9519c83835da9db309e61ec87ddf165167

SHA256
80ab0b86de58a657956b2a293bd9957f78e37e7383c86d6cd142208c153b6311

SHA512
57f8473eedaf7e8aad3b5bcbb16d373fd6aaec290c3230033fc50b5ec220e93520b8915c936e758bb19107429a49965516425350e012f8db0de6d4f6226b42ee

Download Submit
memory/2056-3-0x00000000004E0000-0x00000000005BF000-memory.dmp

Filesize
892KB

Download
memory/2056-12-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/2056-0-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/2056-4-0x00000000004E0000-0x0000000000569000-memory.dmp

Filesize
548KB

Download
memory/2056-9-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/2056-10-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/2056-11-0x00000000004E0000-0x0000000000569000-memory.dmp

Filesize
548KB

Download
memory/2056-2-0x00000000004E0000-0x00000000005BF000-memory.dmp

Filesize
892KB

Download
memory/2056-1-0x00000000004E0000-0x00000000005BF000-memory.dmp

Filesize
892KB

Download
memory/2056-22-0x00000000004E0000-0x0000000000569000-memory.dmp

Filesize
548KB

Download
memory/2056-24-0x00000000004E0000-0x0000000000569000-memory.dmp

Filesize
548KB

Download
memory/2056-28-0x00000000004E0000-0x0000000000569000-memory.dmp

Filesize
548KB

Download
memory/2056-29-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/2056-30-0x00000000004E0000-0x0000000000569000-memory.dmp

Filesize
548KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads