55b3df9026eaafdec872aa5d86074fd26cb2066dc049b1b3812996d9554aee6e

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 09:37

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General

Target
Install_0007.exe
Size 37.5MB
Sample240603-llwhfaac6x
SHA256 55b3df9026eaafdec872aa5d86074fd26cb2066dc049b1b3812996d9554aee6e
MD5 ccb728606a201b93d605e8fad53a9e11
SHA1 023d0589874541033ada8e01fdcffd455f674bd0
SHA512 cd5da61e57871fd5e4082e9d22c40802cf05f7db828cf9c51d3d08e37816ae10eaced29fc2727ac8706ba5b276348d363658050b39f55efd03618b34242a1e61
SSDEEP 786432:g4O9FTysg+6AaEpmSqz1oRQfx022R1dTFn/tQUZdKJc7tJG3:fOPuosSqZHNgzdZKJH
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2316	Install_0007.exe

Registers COM server for autorun 1 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Roaming\\7zip\\7-zip32.dll"	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment"	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Roaming\\7zip\\7-zip.dll"	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment"	Install_0007.exe

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

System Information Discovery
T1082

Modifies registry class 33 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\*\shellex\ContextMenuHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}"	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Directory\shellex	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Directory\shellex\DragDropHandlers	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Drive\shellex\DragDropHandlers	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\CLSID\{23170F69-40C1-278A-1000-000100020000}	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment"	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\*	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\*\shellex\ContextMenuHandlers\7-Zip	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Folder\shellex	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Folder\shellex\ContextMenuHandlers	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Folder\shellex\ContextMenuHandlers\7-Zip	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Directory\shellex\DragDropHandlers\7-Zip	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Drive	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Roaming\\7zip\\7-zip32.dll"	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Roaming\\7zip\\7-zip.dll"	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\*\shellex\ContextMenuHandlers	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Folder\shellex\ContextMenuHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}"	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Directory\shellex\DragDropHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}"	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node\CLSID	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Directory	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Folder	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\*\shellex	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Directory\shellex\ContextMenuHandlers\7-Zip	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Drive\shellex	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Drive\shellex\DragDropHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}"	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Directory\shellex\ContextMenuHandlers	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Directory\shellex\ContextMenuHandlers\7-Zip\ = "{23170F69-40C1-278A-1000-000100020000}"	Install_0007.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Drive\shellex\DragDropHandlers\7-Zip	Install_0007.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Wow6432Node\CLSID\{23170F69-40C1-278A-1000-000100020000}\InprocServer32\ThreadingModel = "Apartment"	Install_0007.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2316	Install_0007.exe
2316	Install_0007.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2316	Install_0007.exe
Token: SeDebugPrivilege	2316	Install_0007.exe

C:\Users\Admin\AppData\Local\Temp\Install_0007.exe
"C:\Users\Admin\AppData\Local\Temp\Install_0007.exe"
1⤵
- Loads dropped DLL
- Registers COM server for autorun
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2316

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

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

7zFM.exe

Path \Users\Admin\AppData\Roaming\7zip\7zFM.exe
Size 566KB
SHA256 f9e982bc418a0895effcd0d3deca22f9d0bf8038ed14a914a86c05fbd4275d66
MD5 3e53089476409b289a2c8454c792eeaa
SHA1 9a0a92c55d0562173417ae880f05493f92d03084
SHA512 f199bf971e50635bdd9b8db61ac1de148ce010dd00c46dcfcf68dfaac30781eb8b9c471088de45cb05c157a8bdb56e7c5791c0218d088da6be7e503e2d39045f
SSDEEP 12288:I/7BCPtaGQPQKwJe4F49gl9cdxp0VmvR9HYdPafS8hm:I/7BCPtaGQo9JO9W6xp0VIR94dyfS8hm
MD5 SHA1 SHA512 SSDEEP

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memory/2316-0-0x0000000010000000-0x0000000010631000-memory.dmp

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