darkcomet | 423fc644a8ba25e3aa1d762aa7d8674a9cd48c395a748bfab6bf2313b53c0fbb

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-01-2025 23:23

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General

Target

JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Size

349KB
MD5

614542b000a8b8b16a4efbe1cc858740
SHA1

20a24f0950628023df472120fcc12c1f3fe603ca
SHA256

423fc644a8ba25e3aa1d762aa7d8674a9cd48c395a748bfab6bf2313b53c0fbb
SHA512

8e818ca26381769342da858eade9f23263327931475895509665d35bccd579e3e14ba373a1696410adce4264fb99c5e1b350ccdf17f8e92872d7b4540057cef2
SSDEEP

6144:EcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37EBLLjMdWnpQZh9h4:EcW7KEZlPzCy37ElMd0QZh9u

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

24.132.152.63:1605

Mutex

DC_MUTEX-8C4KB26

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
cQhexEAS5vGC
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

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"	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe

Executes dropped EXE 1 IoCs

pid	Process
2400	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3060-0-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral1/files/0x0008000000016dd0-5.dat	upx
behavioral1/memory/2400-13-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral1/memory/3060-15-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral1/memory/2400-16-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral1/memory/2400-18-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral1/memory/2400-19-0x0000000000400000-0x00000000004E8000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeSecurityPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeTakeOwnershipPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeLoadDriverPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeSystemProfilePrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeSystemtimePrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeProfSingleProcessPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeIncBasePriorityPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeCreatePagefilePrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeBackupPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeRestorePrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeShutdownPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeDebugPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeSystemEnvironmentPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeChangeNotifyPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeRemoteShutdownPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeUndockPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeManageVolumePrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeImpersonatePrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeCreateGlobalPrivilege	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: 33	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: 34	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: 35	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
Token: SeIncreaseQuotaPrivilege	2400	msdcsc.exe
Token: SeSecurityPrivilege	2400	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2400	msdcsc.exe
Token: SeLoadDriverPrivilege	2400	msdcsc.exe
Token: SeSystemProfilePrivilege	2400	msdcsc.exe
Token: SeSystemtimePrivilege	2400	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2400	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2400	msdcsc.exe
Token: SeCreatePagefilePrivilege	2400	msdcsc.exe
Token: SeBackupPrivilege	2400	msdcsc.exe
Token: SeRestorePrivilege	2400	msdcsc.exe
Token: SeShutdownPrivilege	2400	msdcsc.exe
Token: SeDebugPrivilege	2400	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2400	msdcsc.exe
Token: SeChangeNotifyPrivilege	2400	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2400	msdcsc.exe
Token: SeUndockPrivilege	2400	msdcsc.exe
Token: SeManageVolumePrivilege	2400	msdcsc.exe
Token: SeImpersonatePrivilege	2400	msdcsc.exe
Token: SeCreateGlobalPrivilege	2400	msdcsc.exe
Token: 33	2400	msdcsc.exe
Token: 34	2400	msdcsc.exe
Token: 35	2400	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2400	msdcsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2400	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe	31
PID 3060 wrote to memory of 2400	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe	31
PID 3060 wrote to memory of 2400	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe	31
PID 3060 wrote to memory of 2400	3060	JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe	31
PID 2400 wrote to memory of 2112	2400	msdcsc.exe	32
PID 2400 wrote to memory of 2112	2400	msdcsc.exe	32
PID 2400 wrote to memory of 2112	2400	msdcsc.exe	32
PID 2400 wrote to memory of 2112	2400	msdcsc.exe	32
PID 2400 wrote to memory of 2644	2400	msdcsc.exe	33
PID 2400 wrote to memory of 2644	2400	msdcsc.exe	33
PID 2400 wrote to memory of 2644	2400	msdcsc.exe	33
PID 2400 wrote to memory of 2644	2400	msdcsc.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_614542b000a8b8b16a4efbe1cc858740.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:2112
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:2644

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
349KB

MD5
614542b000a8b8b16a4efbe1cc858740

SHA1
20a24f0950628023df472120fcc12c1f3fe603ca

SHA256
423fc644a8ba25e3aa1d762aa7d8674a9cd48c395a748bfab6bf2313b53c0fbb

SHA512
8e818ca26381769342da858eade9f23263327931475895509665d35bccd579e3e14ba373a1696410adce4264fb99c5e1b350ccdf17f8e92872d7b4540057cef2

Download Submit
memory/2400-13-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2400-16-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2400-18-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2400-19-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/3060-0-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/3060-1-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/3060-12-0x00000000040E0000-0x00000000041C8000-memory.dmp

Filesize
928KB

Download
memory/3060-15-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads