b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77

Analysis

max time kernel
299s
max time network
346s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2022 08:06

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General

Target

b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Size

817KB
MD5

4f43f0ce3a727545c8df3514ce82829a
SHA1

07692bbe910a3e7ec84eb3b910b0722494056075
SHA256

b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77
SHA512

6c1a24ef310afbec52bc8f8944c1bdf2d57990294a25a11112f078d0db665059db7c6a62c2f2a88bf252c69de03712972add99d3ef7d5bd2ccbee7e572c80b7e
SSDEEP

24576:ksb6ntfQ4QmXo4Z6CLNcOK+OqDXKoxqmZPwRs:Kqm45mNcOK+OqsmO2

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3160	temp.exe
2624	Crossdark.com.cn

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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2624 set thread context of 1552	2624	Crossdark.com.cn	88

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\ Crossdark.com.cn	temp.exe
File opened for modification	C:\Windows\ Crossdark.com.cn	temp.exe
File created	C:\Windows\uninstal.bat	temp.exe

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

System Information Discovery
T1082

Modifies registry class 36 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\TypeLib\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\ProgID\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\ProgID\ = "BDATuner.ChannelIDTuningSpace.1"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\Programmable\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\HELPDIR\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\ = "AcroBrokerLib"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\0\win32	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\Implemented Categories\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\0\win32\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\VersionIndependentProgID	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\ProgID	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\0\win32\ = "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroBroker.exe"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\FLAGS	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\ = "Egaza Object"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\Implemented Categories	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\InprocServer32\ = "C:\\Windows\\SysWOW64\\msvidctl.dll"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\FLAGS\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\Programmable	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\HELPDIR	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\Version\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\Version\ = "1.0"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\VersionIndependentProgID\ = "BDATuner.ChannelIDTuningSpace"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\InprocServer32	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\TypeLib\ = "{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\Version	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\0	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\0\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}\1.0\FLAGS\ = "0"	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\TypeLib	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\VersionIndependentProgID\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4517DCEE-468E-4AC9-75AC-01656F7DFE1B}\InprocServer32\	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{EF1E661F-884D-8124-C3B2-5FD6CD16FE20}	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3160	temp.exe
Token: SeDebugPrivilege	2624	Crossdark.com.cn

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 3160	4176	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe	82
PID 4176 wrote to memory of 3160	4176	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe	82
PID 4176 wrote to memory of 3160	4176	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe	82
PID 4176 wrote to memory of 3768	4176	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe	83
PID 4176 wrote to memory of 3768	4176	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe	83
PID 4176 wrote to memory of 3768	4176	b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe	83
PID 3768 wrote to memory of 4208	3768	cmd.exe	86
PID 3768 wrote to memory of 4208	3768	cmd.exe	86
PID 3768 wrote to memory of 4208	3768	cmd.exe	86
PID 2624 wrote to memory of 1552	2624	Crossdark.com.cn	88
PID 2624 wrote to memory of 1552	2624	Crossdark.com.cn	88
PID 2624 wrote to memory of 1552	2624	Crossdark.com.cn	88
PID 2624 wrote to memory of 1552	2624	Crossdark.com.cn	88
PID 2624 wrote to memory of 1552	2624	Crossdark.com.cn	88
PID 3160 wrote to memory of 1524	3160	temp.exe	91
PID 3160 wrote to memory of 1524	3160	temp.exe	91
PID 3160 wrote to memory of 1524	3160	temp.exe	91

C:\Users\Admin\AppData\Local\Temp\b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe
"C:\Users\Admin\AppData\Local\Temp\b512ff9ce20b6c35ae7a9a12301ebe2bce0e9a8a047cab25ab53049802e80c77.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4176
- C:\Users\Admin\AppData\Local\Temp\temp.exe
  "C:\Users\Admin\AppData\Local\Temp\temp.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3160
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\uninstal.bat
    3⤵
    PID:1524
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\qqqqq.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3768
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\B512FF~1.EXE
    3⤵
    PID:4208

C:\Windows\ Crossdark.com.cn
"C:\Windows\ Crossdark.com.cn"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2624
- C:\WINDOWS\SysWOW64\svchost.exe
  C:\WINDOWS\system32\svchost.exe
  2⤵
  PID:1552

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\temp.exe

Filesize
302KB

MD5
5be76407901b4af76cd71ceccc4d9947

SHA1
a12240179c0f09d62f21f4a9db1d63b8e11a311c

SHA256
c6dc1122d7bec3c64f72305265ede0b25a14e0b2456c27f9b9d44e66ab18dba2

SHA512
8507f550cce21a17f79664d387329257a1da19d4084098407484e1bf549314b01821770c9d92f909a99a4a35d7a6588a1a380a160f2f75db28871fd9fd26c137

Download Submit
C:\Users\Admin\AppData\Local\Temp\temp.exe

Filesize
302KB

MD5
5be76407901b4af76cd71ceccc4d9947

SHA1
a12240179c0f09d62f21f4a9db1d63b8e11a311c

SHA256
c6dc1122d7bec3c64f72305265ede0b25a14e0b2456c27f9b9d44e66ab18dba2

SHA512
8507f550cce21a17f79664d387329257a1da19d4084098407484e1bf549314b01821770c9d92f909a99a4a35d7a6588a1a380a160f2f75db28871fd9fd26c137

Download Submit
C:\Windows\ Crossdark.com.cn

Filesize
302KB

MD5
5be76407901b4af76cd71ceccc4d9947

SHA1
a12240179c0f09d62f21f4a9db1d63b8e11a311c

SHA256
c6dc1122d7bec3c64f72305265ede0b25a14e0b2456c27f9b9d44e66ab18dba2

SHA512
8507f550cce21a17f79664d387329257a1da19d4084098407484e1bf549314b01821770c9d92f909a99a4a35d7a6588a1a380a160f2f75db28871fd9fd26c137

Download Submit
C:\Windows\ Crossdark.com.cn

Filesize
302KB

MD5
5be76407901b4af76cd71ceccc4d9947

SHA1
a12240179c0f09d62f21f4a9db1d63b8e11a311c

SHA256
c6dc1122d7bec3c64f72305265ede0b25a14e0b2456c27f9b9d44e66ab18dba2

SHA512
8507f550cce21a17f79664d387329257a1da19d4084098407484e1bf549314b01821770c9d92f909a99a4a35d7a6588a1a380a160f2f75db28871fd9fd26c137

Download Submit
C:\Windows\uninstal.bat

Filesize
134B

MD5
d844dfb0f997e4d32cdb6dafa4d7717a

SHA1
eaa7b33e52129f946e1aca0ce3cf45a7ce36b5ec

SHA256
0f38f96239893411209b61471bb7c2412a8637ce0e5cbf9cc3c23e14ee44759a

SHA512
fdeeeda586bf1d748ab962bd579ab3ef69a59ab9306bd3b29663dd496bba31e0a20b62e6076c08bfef44ad821e9dd69e88a29a56d427cbba532947cf91947be5

Download Submit
C:\qqqqq.bat

Filesize
106B

MD5
dcd5ea48e806d232369ea13c6c7e8c74

SHA1
2051bf7c094100bc20b369a00159d21d1f25eebe

SHA256
d089e90dd3d39950e08f7196d16bb08d5227a8c9b9f04d7bdacac0cecf7520b9

SHA512
b8be8834defe64c2409a2b622b20a1b6f05646b2d990a07f56e80dc611b21556a47f55075f93f34f9415573a8a3a2bc07231c0c4c1496fa186a7be08b1fc2006

Download Submit
memory/1524-152-0x0000000000000000-mapping.dmp

Download
memory/1552-150-0x0000000000000000-mapping.dmp

Download
memory/1552-151-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/2624-149-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/2624-148-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/2624-154-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/2624-144-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/3160-142-0x0000000000400000-0x0000000000512000-memory.dmp

Filesize
1.1MB

Download
memory/3160-136-0x0000000000000000-mapping.dmp

Download
memory/3768-139-0x0000000000000000-mapping.dmp

Download
memory/4176-132-0x0000000010000000-0x00000000100C2000-memory.dmp

Filesize
776KB

Download
memory/4176-141-0x00000000008F0000-0x0000000000944000-memory.dmp

Filesize
336KB

Download
memory/4176-140-0x0000000010000000-0x00000000100C2000-memory.dmp

Filesize
776KB

Download
memory/4176-135-0x0000000003230000-0x0000000003234000-memory.dmp

Filesize
16KB

Download
memory/4176-134-0x0000000003240000-0x0000000003243000-memory.dmp

Filesize
12KB

Download
memory/4176-133-0x00000000008F0000-0x0000000000944000-memory.dmp

Filesize
336KB

Download
memory/4208-147-0x0000000000000000-mapping.dmp

Download