Analysis
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max time kernel
150s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
29-10-2024 09:25
Static task
static1
Behavioral task
behavioral1
Sample
b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
Resource
win7-20241010-en
General
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Target
b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe
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Size
520KB
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MD5
74b0b03fff3d28b89f0e8027d8142530
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SHA1
4c8d197f26635b263ac7200b9d0c8283b1d07351
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SHA256
b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893
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SHA512
0922391e521f1b656230016382a2a684c9cbe96f45a5a291c99b93ee508c4d9344423c1144b37a968db94fa96ddc14213a16c2926c6f12c32dd59d87d9227856
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SSDEEP
6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbQ:f9fC3hh29Ya77A90aFtDfT5IMbQ
Malware Config
Extracted
darkcomet
PrivateEye
ratblackshades.no-ip.biz:1604
DC_MUTEX-ACC1R98
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gencode
8GG5LVVGljSF
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install
false
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offline_keylogger
true
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persistence
false
Signatures
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Darkcomet family
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Executes dropped EXE 3 IoCs
Processes:
winupd.exewinupd.exewinupd.exepid Process 2572 winupd.exe 2616 winupd.exe 2880 winupd.exe -
Loads dropped DLL 4 IoCs
Processes:
b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exepid Process 912 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 912 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 2572 winupd.exe 2572 winupd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray" reg.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exedescription pid Process procid_target PID 2116 set thread context of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2572 set thread context of 2616 2572 winupd.exe 32 PID 2572 set thread context of 2880 2572 winupd.exe 33 -
Processes:
resource yara_rule behavioral1/memory/2880-54-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-55-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-71-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-58-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-60-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-62-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-73-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-74-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-75-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-78-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-77-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-82-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-83-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-84-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-85-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-86-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-87-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-88-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-89-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-90-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-91-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-92-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-93-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-94-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-95-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/2880-96-0x0000000000400000-0x00000000004B7000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
cmd.exereg.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exewinupd.exewinupd.exeipconfig.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winupd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ipconfig.exe -
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
Processes:
ipconfig.exepid Process 2748 ipconfig.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 23 IoCs
Processes:
winupd.exedescription pid Process Token: SeIncreaseQuotaPrivilege 2880 winupd.exe Token: SeSecurityPrivilege 2880 winupd.exe Token: SeTakeOwnershipPrivilege 2880 winupd.exe Token: SeLoadDriverPrivilege 2880 winupd.exe Token: SeSystemProfilePrivilege 2880 winupd.exe Token: SeSystemtimePrivilege 2880 winupd.exe Token: SeProfSingleProcessPrivilege 2880 winupd.exe Token: SeIncBasePriorityPrivilege 2880 winupd.exe Token: SeCreatePagefilePrivilege 2880 winupd.exe Token: SeBackupPrivilege 2880 winupd.exe Token: SeRestorePrivilege 2880 winupd.exe Token: SeShutdownPrivilege 2880 winupd.exe Token: SeDebugPrivilege 2880 winupd.exe Token: SeSystemEnvironmentPrivilege 2880 winupd.exe Token: SeChangeNotifyPrivilege 2880 winupd.exe Token: SeRemoteShutdownPrivilege 2880 winupd.exe Token: SeUndockPrivilege 2880 winupd.exe Token: SeManageVolumePrivilege 2880 winupd.exe Token: SeImpersonatePrivilege 2880 winupd.exe Token: SeCreateGlobalPrivilege 2880 winupd.exe Token: 33 2880 winupd.exe Token: 34 2880 winupd.exe Token: 35 2880 winupd.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exewinupd.exewinupd.exepid Process 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 912 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 2572 winupd.exe 2616 winupd.exe 2880 winupd.exe -
Suspicious use of WriteProcessMemory 44 IoCs
Processes:
b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exeb8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exewinupd.exewinupd.exeipconfig.execmd.exedescription pid Process procid_target PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 2116 wrote to memory of 912 2116 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 30 PID 912 wrote to memory of 2572 912 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 31 PID 912 wrote to memory of 2572 912 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 31 PID 912 wrote to memory of 2572 912 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 31 PID 912 wrote to memory of 2572 912 b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe 31 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2616 2572 winupd.exe 32 PID 2572 wrote to memory of 2880 2572 winupd.exe 33 PID 2572 wrote to memory of 2880 2572 winupd.exe 33 PID 2572 wrote to memory of 2880 2572 winupd.exe 33 PID 2572 wrote to memory of 2880 2572 winupd.exe 33 PID 2572 wrote to memory of 2880 2572 winupd.exe 33 PID 2572 wrote to memory of 2880 2572 winupd.exe 33 PID 2572 wrote to memory of 2880 2572 winupd.exe 33 PID 2572 wrote to memory of 2880 2572 winupd.exe 33 PID 2616 wrote to memory of 2748 2616 winupd.exe 34 PID 2616 wrote to memory of 2748 2616 winupd.exe 34 PID 2616 wrote to memory of 2748 2616 winupd.exe 34 PID 2616 wrote to memory of 2748 2616 winupd.exe 34 PID 2616 wrote to memory of 2748 2616 winupd.exe 34 PID 2616 wrote to memory of 2748 2616 winupd.exe 34 PID 2748 wrote to memory of 2800 2748 ipconfig.exe 36 PID 2748 wrote to memory of 2800 2748 ipconfig.exe 36 PID 2748 wrote to memory of 2800 2748 ipconfig.exe 36 PID 2748 wrote to memory of 2800 2748 ipconfig.exe 36 PID 2800 wrote to memory of 1344 2800 cmd.exe 38 PID 2800 wrote to memory of 1344 2800 cmd.exe 38 PID 2800 wrote to memory of 1344 2800 cmd.exe 38 PID 2800 wrote to memory of 1344 2800 cmd.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe"C:\Users\Admin\AppData\Local\Temp\b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2116 -
C:\Users\Admin\AppData\Local\Temp\b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe"C:\Users\Admin\AppData\Local\Temp\b8f9e6fd17dec2e0a2569c79965f3127370089bd48c3f20871b5c79430060893N.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:912 -
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exeC:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2572 -
C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2616 -
C:\Windows\SysWOW64\ipconfig.exe"C:\Windows\system32\ipconfig.exe"5⤵
- System Location Discovery: System Language Discovery
- Gathers network information
- Suspicious use of WriteProcessMemory
PID:2748 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\WPOWKJLG.bat" "6⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800 -
C:\Windows\SysWOW64\reg.exeREG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinUpdate /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray" /f7⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:1344
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C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2880
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
151B
MD5cac890d00365d07b9ca89def17cc3a36
SHA16fa99679ede791c16b5d3e6d243a98e8bbdb7eab
SHA2564f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da
SHA512124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1
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Filesize
520KB
MD51188f64921ec3be9aad3dbd6465d1985
SHA1a3831c5ec9181221d8d9de9760459c68af6cb806
SHA2561472270d717fd52ee6eef67dcba7af41e47f125a80d1a2402c960a6184aff9e5
SHA51202afdf0c99250f09cee228859f3f0193531a282e9765bf781dcfbf8de51195dbbddb11bb160461c76513fc6ac79772122e44dee13bd864820f637d7dcebae26c