Analysis
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max time kernel
121s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
14-08-2023 01:12
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20230712-en
windows7-x64
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
Loader.exe
Resource
win10v2004-20230703-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
Loader.exe
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Size
8.0MB
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MD5
22fcb6e52cc1b2e7577a119a595bf8c8
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SHA1
e4d1de0a77a3a0fb045c4df5650d0f72093ac56b
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SHA256
771dd9bf1defca2c753a84213394189cbc0937d362e0ae4c93ef1f3f9d16b98d
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SHA512
5ee636e7b3ec1b35b98a7f4ef06c57bcf3a1fa9ff344fe753550fb42e4733757af0b27a2175daf0f4c141b2e22727d671bb3a49bde9e5a76cd179c8e106d93d6
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SSDEEP
196608:Gg1DvMJTJyWVSFi50E3bwcIm7aGkWakK:Gwvu1E2IKaf6K
Score
10/10
Malware Config
Signatures
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Shurk
Shurk is an infostealer, written in C++ which appeared in 2021.
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Shurk Stealer payload 2 IoCs
resource yara_rule behavioral1/memory/2320-56-0x0000000002640000-0x0000000002E0E000-memory.dmp shurk_stealer behavioral1/memory/2320-55-0x000007FFFF770000-0x000007FFFFFA7000-memory.dmp shurk_stealer -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 2 checkip.amazonaws.com -
Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.
pid Process 2500 WMIC.exe -
GoLang User-Agent 3 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 6 Go-http-client/1.1 HTTP User-Agent header 3 Go-http-client/1.1 HTTP User-Agent header 5 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 40 IoCs
pid Process 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2832 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 41 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2500 WMIC.exe Token: SeSecurityPrivilege 2500 WMIC.exe Token: SeTakeOwnershipPrivilege 2500 WMIC.exe Token: SeLoadDriverPrivilege 2500 WMIC.exe Token: SeSystemProfilePrivilege 2500 WMIC.exe Token: SeSystemtimePrivilege 2500 WMIC.exe Token: SeProfSingleProcessPrivilege 2500 WMIC.exe Token: SeIncBasePriorityPrivilege 2500 WMIC.exe Token: SeCreatePagefilePrivilege 2500 WMIC.exe Token: SeBackupPrivilege 2500 WMIC.exe Token: SeRestorePrivilege 2500 WMIC.exe Token: SeShutdownPrivilege 2500 WMIC.exe Token: SeDebugPrivilege 2500 WMIC.exe Token: SeSystemEnvironmentPrivilege 2500 WMIC.exe Token: SeRemoteShutdownPrivilege 2500 WMIC.exe Token: SeUndockPrivilege 2500 WMIC.exe Token: SeManageVolumePrivilege 2500 WMIC.exe Token: 33 2500 WMIC.exe Token: 34 2500 WMIC.exe Token: 35 2500 WMIC.exe Token: SeIncreaseQuotaPrivilege 2500 WMIC.exe Token: SeSecurityPrivilege 2500 WMIC.exe Token: SeTakeOwnershipPrivilege 2500 WMIC.exe Token: SeLoadDriverPrivilege 2500 WMIC.exe Token: SeSystemProfilePrivilege 2500 WMIC.exe Token: SeSystemtimePrivilege 2500 WMIC.exe Token: SeProfSingleProcessPrivilege 2500 WMIC.exe Token: SeIncBasePriorityPrivilege 2500 WMIC.exe Token: SeCreatePagefilePrivilege 2500 WMIC.exe Token: SeBackupPrivilege 2500 WMIC.exe Token: SeRestorePrivilege 2500 WMIC.exe Token: SeShutdownPrivilege 2500 WMIC.exe Token: SeDebugPrivilege 2500 WMIC.exe Token: SeSystemEnvironmentPrivilege 2500 WMIC.exe Token: SeRemoteShutdownPrivilege 2500 WMIC.exe Token: SeUndockPrivilege 2500 WMIC.exe Token: SeManageVolumePrivilege 2500 WMIC.exe Token: 33 2500 WMIC.exe Token: 34 2500 WMIC.exe Token: 35 2500 WMIC.exe Token: SeDebugPrivilege 2832 taskmgr.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
pid Process 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe 2832 taskmgr.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2320 wrote to memory of 2544 2320 Loader.exe 29 PID 2320 wrote to memory of 2544 2320 Loader.exe 29 PID 2320 wrote to memory of 2544 2320 Loader.exe 29 PID 2544 wrote to memory of 2500 2544 cmd.exe 31 PID 2544 wrote to memory of 2500 2544 cmd.exe 31 PID 2544 wrote to memory of 2500 2544 cmd.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\Loader.exe"C:\Users\Admin\AppData\Local\Temp\Loader.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Windows\system32\cmd.execmd /C "wmic path win32_VideoController get name"2⤵
- Suspicious use of WriteProcessMemory
PID:2544 -
C:\Windows\System32\Wbem\WMIC.exewmic path win32_VideoController get name3⤵
- Detects videocard installed
- Suspicious use of AdjustPrivilegeToken
PID:2500
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2832
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C:\Windows\system32\verclsid.exe"C:\Windows\system32\verclsid.exe" /S /C {0B2C9183-C9FA-4C53-AE21-C900B0C39965} /I {0C733A8A-2A1C-11CE-ADE5-00AA0044773D} /X 0x4011⤵PID:2956