darkcomet | 93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c

Analysis

max time kernel
151s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 23:45

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General

Target

93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Size

276KB
MD5

42d7cab85b6091321fcb6b263567dfc0
SHA1

ff1bd9453ca46e863ae592121a283a30ff8ab100
SHA256

93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c
SHA512

051bfcd0339f74834dc564dc592b4610a1595bdd433c185752d31b93479b79f9eddc04387f3ed383230fffbd1c9c5260bc98b568a44a2a309722baaa5dd52656
SSDEEP

6144:5cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PLv:5cWkbgTYWnYnt/IDYhPL

Score

10^/10

darkcomet anj evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Anj

target29a.no-ip.org:1604

Mutex

DC_MUTEX-5X8B0T9

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
di1aqw4xuhc2
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Executes dropped EXE 1 IoCs

pid	Process
1020	msdcsc.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1232-55-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/files/0x000a000000012324-56.dat	upx
behavioral1/files/0x000a000000012324-57.dat	upx
behavioral1/files/0x000a000000012324-59.dat	upx
behavioral1/files/0x000a000000012324-61.dat	upx
behavioral1/memory/1020-66-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/1020-67-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeSecurityPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeTakeOwnershipPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeLoadDriverPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeSystemProfilePrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeSystemtimePrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeProfSingleProcessPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeIncBasePriorityPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeCreatePagefilePrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeBackupPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeRestorePrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeShutdownPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeDebugPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeSystemEnvironmentPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeChangeNotifyPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeRemoteShutdownPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeUndockPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeManageVolumePrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeImpersonatePrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeCreateGlobalPrivilege	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: 33	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: 34	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: 35	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
Token: SeIncreaseQuotaPrivilege	1020	msdcsc.exe
Token: SeSecurityPrivilege	1020	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1020	msdcsc.exe
Token: SeLoadDriverPrivilege	1020	msdcsc.exe
Token: SeSystemProfilePrivilege	1020	msdcsc.exe
Token: SeSystemtimePrivilege	1020	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1020	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1020	msdcsc.exe
Token: SeCreatePagefilePrivilege	1020	msdcsc.exe
Token: SeBackupPrivilege	1020	msdcsc.exe
Token: SeRestorePrivilege	1020	msdcsc.exe
Token: SeShutdownPrivilege	1020	msdcsc.exe
Token: SeDebugPrivilege	1020	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1020	msdcsc.exe
Token: SeChangeNotifyPrivilege	1020	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1020	msdcsc.exe
Token: SeUndockPrivilege	1020	msdcsc.exe
Token: SeManageVolumePrivilege	1020	msdcsc.exe
Token: SeImpersonatePrivilege	1020	msdcsc.exe
Token: SeCreateGlobalPrivilege	1020	msdcsc.exe
Token: 33	1020	msdcsc.exe
Token: 34	1020	msdcsc.exe
Token: 35	1020	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1020	msdcsc.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 1020	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe	27
PID 1232 wrote to memory of 1020	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe	27
PID 1232 wrote to memory of 1020	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe	27
PID 1232 wrote to memory of 1020	1232	93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe	27
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28
PID 1020 wrote to memory of 336	1020	msdcsc.exe	28

C:\Users\Admin\AppData\Local\Temp\93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe
"C:\Users\Admin\AppData\Local\Temp\93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1020
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:336

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
276KB

MD5
42d7cab85b6091321fcb6b263567dfc0

SHA1
ff1bd9453ca46e863ae592121a283a30ff8ab100

SHA256
93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c

SHA512
051bfcd0339f74834dc564dc592b4610a1595bdd433c185752d31b93479b79f9eddc04387f3ed383230fffbd1c9c5260bc98b568a44a2a309722baaa5dd52656

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
276KB

MD5
42d7cab85b6091321fcb6b263567dfc0

SHA1
ff1bd9453ca46e863ae592121a283a30ff8ab100

SHA256
93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c

SHA512
051bfcd0339f74834dc564dc592b4610a1595bdd433c185752d31b93479b79f9eddc04387f3ed383230fffbd1c9c5260bc98b568a44a2a309722baaa5dd52656

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
276KB

MD5
42d7cab85b6091321fcb6b263567dfc0

SHA1
ff1bd9453ca46e863ae592121a283a30ff8ab100

SHA256
93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c

SHA512
051bfcd0339f74834dc564dc592b4610a1595bdd433c185752d31b93479b79f9eddc04387f3ed383230fffbd1c9c5260bc98b568a44a2a309722baaa5dd52656

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
276KB

MD5
42d7cab85b6091321fcb6b263567dfc0

SHA1
ff1bd9453ca46e863ae592121a283a30ff8ab100

SHA256
93e7c03e9e0dfcabcdbd4b621d1d1a1daa0959ff42dfc7c6cbf128a31cc2e08c

SHA512
051bfcd0339f74834dc564dc592b4610a1595bdd433c185752d31b93479b79f9eddc04387f3ed383230fffbd1c9c5260bc98b568a44a2a309722baaa5dd52656

Download Submit
memory/1020-66-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1020-67-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1232-54-0x0000000074E41000-0x0000000074E43000-memory.dmp

Filesize
8KB

Download
memory/1232-55-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/1232-64-0x0000000003A50000-0x0000000003B12000-memory.dmp

Filesize
776KB

Download
memory/1232-65-0x0000000003A50000-0x0000000003B12000-memory.dmp

Filesize
776KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads