Overview
overview
10Static
static
10lab_sample...5b.exe
windows7-x64
7lab_sample...5b.exe
windows10-2004-x64
7lab_sample...82.exe
windows7-x64
8lab_sample...82.exe
windows10-2004-x64
7lab_sample...63.exe
windows7-x64
10lab_sample...63.exe
windows10-2004-x64
10lab_sample...15.exe
windows7-x64
1lab_sample...15.exe
windows10-2004-x64
1lab_sample...c7.exe
windows7-x64
3lab_sample...c7.exe
windows10-2004-x64
7lab_sample...fc.exe
windows7-x64
6lab_sample...fc.exe
windows10-2004-x64
6Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
28-06-2024 11:50
Behavioral task
behavioral1
Sample
lab_samples/1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
lab_samples/1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral3
Sample
lab_samples/6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
lab_samples/6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
lab_samples/6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe
Resource
win7-20240508-en
Behavioral task
behavioral6
Sample
lab_samples/6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral7
Sample
lab_samples/a380617cf945ca35dbbc3d031bcc612f0dca96c1027a75003182ba5be2851215.exe
Resource
win7-20240611-en
Behavioral task
behavioral8
Sample
lab_samples/a380617cf945ca35dbbc3d031bcc612f0dca96c1027a75003182ba5be2851215.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral9
Sample
lab_samples/b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7.exe
Resource
win7-20240220-en
Behavioral task
behavioral10
Sample
lab_samples/b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral11
Sample
lab_samples/e30b76f9454a5fd3d11b5792ff93e56c52bf5dfba6ab375c3b96e17af562f5fc.exe
Resource
win7-20240611-en
Behavioral task
behavioral12
Sample
lab_samples/e30b76f9454a5fd3d11b5792ff93e56c52bf5dfba6ab375c3b96e17af562f5fc.exe
Resource
win10v2004-20240508-en
General
-
Target
lab_samples/6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe
-
Size
658KB
-
MD5
f6351da84168d40fae8da0c156fbab0f
-
SHA1
1a2283c85bc5c655f5f2f77f27ec3a9412e8db7e
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SHA256
6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363
-
SHA512
9948e83f004bb6d0edf14626660365e469dec444128e820f82066e73177f5de109d048fe226a9cbe95cfc6a99a9d4c501ab3f3900aa2e3677434f03d52694607
-
SSDEEP
12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hn:qZ1xuVVjfFoynPaVBUR8f+kN10EBV
Malware Config
Extracted
darkcomet
Guest16
test213.no-ip.info:1604
DC_MUTEX-KHNEW06
-
InstallPath
MSDCSC\runddl32.exe
-
gencode
F6FE8i2BxCpu
-
install
true
-
offline_keylogger
true
-
persistence
true
-
reg_key
MicroUpdate
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\runddl32.exe" 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe -
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
Processes:
attrib.exeattrib.exepid process 2660 attrib.exe 2560 attrib.exe -
Executes dropped EXE 1 IoCs
Processes:
runddl32.exepid process 2708 runddl32.exe -
Loads dropped DLL 2 IoCs
Processes:
6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exepid process 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exerunddl32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\runddl32.exe" 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Set value (str) \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\runddl32.exe" runddl32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
runddl32.exepid process 2708 runddl32.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
Processes:
6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exerunddl32.exedescription pid process Token: SeIncreaseQuotaPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeSecurityPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeTakeOwnershipPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeLoadDriverPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeSystemProfilePrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeSystemtimePrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeProfSingleProcessPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeIncBasePriorityPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeCreatePagefilePrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeBackupPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeRestorePrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeShutdownPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeDebugPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeSystemEnvironmentPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeChangeNotifyPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeRemoteShutdownPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeUndockPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeManageVolumePrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeImpersonatePrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeCreateGlobalPrivilege 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: 33 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: 34 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: 35 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe Token: SeIncreaseQuotaPrivilege 2708 runddl32.exe Token: SeSecurityPrivilege 2708 runddl32.exe Token: SeTakeOwnershipPrivilege 2708 runddl32.exe Token: SeLoadDriverPrivilege 2708 runddl32.exe Token: SeSystemProfilePrivilege 2708 runddl32.exe Token: SeSystemtimePrivilege 2708 runddl32.exe Token: SeProfSingleProcessPrivilege 2708 runddl32.exe Token: SeIncBasePriorityPrivilege 2708 runddl32.exe Token: SeCreatePagefilePrivilege 2708 runddl32.exe Token: SeBackupPrivilege 2708 runddl32.exe Token: SeRestorePrivilege 2708 runddl32.exe Token: SeShutdownPrivilege 2708 runddl32.exe Token: SeDebugPrivilege 2708 runddl32.exe Token: SeSystemEnvironmentPrivilege 2708 runddl32.exe Token: SeChangeNotifyPrivilege 2708 runddl32.exe Token: SeRemoteShutdownPrivilege 2708 runddl32.exe Token: SeUndockPrivilege 2708 runddl32.exe Token: SeManageVolumePrivilege 2708 runddl32.exe Token: SeImpersonatePrivilege 2708 runddl32.exe Token: SeCreateGlobalPrivilege 2708 runddl32.exe Token: 33 2708 runddl32.exe Token: 34 2708 runddl32.exe Token: 35 2708 runddl32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
runddl32.exepid process 2708 runddl32.exe -
Suspicious use of WriteProcessMemory 43 IoCs
Processes:
6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.execmd.execmd.exerunddl32.exedescription pid process target process PID 2400 wrote to memory of 2612 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe cmd.exe PID 2400 wrote to memory of 2612 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe cmd.exe PID 2400 wrote to memory of 2612 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe cmd.exe PID 2400 wrote to memory of 2612 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe cmd.exe PID 2400 wrote to memory of 2956 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe cmd.exe PID 2400 wrote to memory of 2956 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe cmd.exe PID 2400 wrote to memory of 2956 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe cmd.exe PID 2400 wrote to memory of 2956 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe cmd.exe PID 2612 wrote to memory of 2660 2612 cmd.exe attrib.exe PID 2612 wrote to memory of 2660 2612 cmd.exe attrib.exe PID 2612 wrote to memory of 2660 2612 cmd.exe attrib.exe PID 2612 wrote to memory of 2660 2612 cmd.exe attrib.exe PID 2956 wrote to memory of 2560 2956 cmd.exe attrib.exe PID 2956 wrote to memory of 2560 2956 cmd.exe attrib.exe PID 2956 wrote to memory of 2560 2956 cmd.exe attrib.exe PID 2956 wrote to memory of 2560 2956 cmd.exe attrib.exe PID 2400 wrote to memory of 2708 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe runddl32.exe PID 2400 wrote to memory of 2708 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe runddl32.exe PID 2400 wrote to memory of 2708 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe runddl32.exe PID 2400 wrote to memory of 2708 2400 6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe runddl32.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe PID 2708 wrote to memory of 2564 2708 runddl32.exe notepad.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 2660 attrib.exe 2560 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\lab_samples\6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe"C:\Users\Admin\AppData\Local\Temp\lab_samples\6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\lab_samples\6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\lab_samples\6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\lab_samples" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\lab_samples" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
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C:\Users\Admin\AppData\Local\Temp\MSDCSC\runddl32.exe"C:\Users\Admin\AppData\Local\Temp\MSDCSC\runddl32.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\notepad.exenotepad3⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\MSDCSC\runddl32.exeFilesize
658KB
MD5f6351da84168d40fae8da0c156fbab0f
SHA11a2283c85bc5c655f5f2f77f27ec3a9412e8db7e
SHA2566d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363
SHA5129948e83f004bb6d0edf14626660365e469dec444128e820f82066e73177f5de109d048fe226a9cbe95cfc6a99a9d4c501ab3f3900aa2e3677434f03d52694607
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memory/2400-0-0x0000000000260000-0x0000000000261000-memory.dmpFilesize
4KB
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memory/2400-52-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
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memory/2564-13-0x0000000000080000-0x0000000000081000-memory.dmpFilesize
4KB
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memory/2564-51-0x00000000001C0000-0x00000000001C1000-memory.dmpFilesize
4KB
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memory/2708-56-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-54-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-55-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-53-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-57-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-59-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-60-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-61-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-62-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-63-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
-
memory/2708-65-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB
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memory/2708-66-0x0000000000400000-0x00000000004B2000-memory.dmpFilesize
712KB