darkcomet | b700cb56fef876ef30bd594fc703413dd13d2895dd02f9c0734b0125fe00d2fd

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-12-2024 00:57

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General

Target

df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Size

251KB
MD5

df417173e0f0ce01d58b10b56d01903b
SHA1

c70311496dc0434dd094f9edbbec46ca33e559a8
SHA256

b700cb56fef876ef30bd594fc703413dd13d2895dd02f9c0734b0125fe00d2fd
SHA512

982595b2a522af85088307e39b7a7bf3a5815a2b5d6ef5640879d2eb2029fcb0fa1dbed382a9f5d064db5f8683e98f1912d49357f8d38cbfcb01c059b12c325d
SSDEEP

6144:NcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37BDAG:NcW7KEZlPzCy37BU

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

10.0.0.12:1605

Mutex

DC_MUTEX-ZD1HDL9

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
8Mpzr8899tvL
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"	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2332-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/files/0x0007000000015d81-5.dat	upx
behavioral1/memory/2696-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2332-16-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-17-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-18-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-20-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-22-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-24-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2696-26-0x0000000000400000-0x00000000004B7000-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	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeSecurityPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeBackupPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeRestorePrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeShutdownPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeDebugPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeUndockPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: 33	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: 34	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: 35	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2696	msdcsc.exe
Token: SeSecurityPrivilege	2696	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2696	msdcsc.exe
Token: SeLoadDriverPrivilege	2696	msdcsc.exe
Token: SeSystemProfilePrivilege	2696	msdcsc.exe
Token: SeSystemtimePrivilege	2696	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2696	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2696	msdcsc.exe
Token: SeCreatePagefilePrivilege	2696	msdcsc.exe
Token: SeBackupPrivilege	2696	msdcsc.exe
Token: SeRestorePrivilege	2696	msdcsc.exe
Token: SeShutdownPrivilege	2696	msdcsc.exe
Token: SeDebugPrivilege	2696	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2696	msdcsc.exe
Token: SeChangeNotifyPrivilege	2696	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2696	msdcsc.exe
Token: SeUndockPrivilege	2696	msdcsc.exe
Token: SeManageVolumePrivilege	2696	msdcsc.exe
Token: SeImpersonatePrivilege	2696	msdcsc.exe
Token: SeCreateGlobalPrivilege	2696	msdcsc.exe
Token: 33	2696	msdcsc.exe
Token: 34	2696	msdcsc.exe
Token: 35	2696	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2696	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2696	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe	31
PID 2332 wrote to memory of 2696	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe	31
PID 2332 wrote to memory of 2696	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe	31
PID 2332 wrote to memory of 2696	2332	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.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:2332
- 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
  PID:2696

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
251KB

MD5
df417173e0f0ce01d58b10b56d01903b

SHA1
c70311496dc0434dd094f9edbbec46ca33e559a8

SHA256
b700cb56fef876ef30bd594fc703413dd13d2895dd02f9c0734b0125fe00d2fd

SHA512
982595b2a522af85088307e39b7a7bf3a5815a2b5d6ef5640879d2eb2029fcb0fa1dbed382a9f5d064db5f8683e98f1912d49357f8d38cbfcb01c059b12c325d

Download Submit
memory/2332-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2332-1-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2332-11-0x0000000003FA0000-0x0000000004057000-memory.dmp

Filesize
732KB

Download
memory/2332-16-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-13-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-17-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-18-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-20-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-22-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-24-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2696-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads