darkcomet | 876a33b5e9204ee3913158102264f33ad6fe1edd5db9a007efeddf0b8b66e8c7

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 22:47

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General

Target

JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
Size

952KB
MD5

68aefa5292d0ac8e6d9a9c67b434fbb0
SHA1

0640e2a13590930c100714eb854e5621036397d3
SHA256

876a33b5e9204ee3913158102264f33ad6fe1edd5db9a007efeddf0b8b66e8c7
SHA512

1577823114d06db22faa2241c2b02642ea71bc13be0d7b1b70c7a5b7a9face1f8d696e42fda70392867a7a124c939f72af2e9fbb3e4bf2d5f9ec559b8df6b668
SSDEEP

12288:byyy7Z3z4I8NXOGjwwG/ZjXsAHHz79p9NM5Tz103j2CF4TxQUOfhVPOSAE//VAci:baCI2OewFJN4mkxyHnnew1SatLRzD

Score

10^/10

darkcomet discovery persistence rat trojan upx

Malware Config

Signatures

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

Executes dropped EXE 3 IoCs

pid	Process
2604	micoffice.exe
1980	micoffice.exe
1620	micoffice.exe

Loads dropped DLL 5 IoCs

pid	Process
2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\msoffice = "C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftOffice\\micoffice.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1804 set thread context of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 2604 set thread context of 1980	2604	micoffice.exe	35
PID 2604 set thread context of 1620	2604	micoffice.exe	36

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2984-445-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2984-1037-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1980-1043-0x0000000000400000-0x000000000040B000-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 7 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_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
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	micoffice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	micoffice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	micoffice.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1620	micoffice.exe
Token: SeSecurityPrivilege	1620	micoffice.exe
Token: SeTakeOwnershipPrivilege	1620	micoffice.exe
Token: SeLoadDriverPrivilege	1620	micoffice.exe
Token: SeSystemProfilePrivilege	1620	micoffice.exe
Token: SeSystemtimePrivilege	1620	micoffice.exe
Token: SeProfSingleProcessPrivilege	1620	micoffice.exe
Token: SeIncBasePriorityPrivilege	1620	micoffice.exe
Token: SeCreatePagefilePrivilege	1620	micoffice.exe
Token: SeBackupPrivilege	1620	micoffice.exe
Token: SeRestorePrivilege	1620	micoffice.exe
Token: SeShutdownPrivilege	1620	micoffice.exe
Token: SeDebugPrivilege	1620	micoffice.exe
Token: SeSystemEnvironmentPrivilege	1620	micoffice.exe
Token: SeChangeNotifyPrivilege	1620	micoffice.exe
Token: SeRemoteShutdownPrivilege	1620	micoffice.exe
Token: SeUndockPrivilege	1620	micoffice.exe
Token: SeManageVolumePrivilege	1620	micoffice.exe
Token: SeImpersonatePrivilege	1620	micoffice.exe
Token: SeCreateGlobalPrivilege	1620	micoffice.exe
Token: 33	1620	micoffice.exe
Token: 34	1620	micoffice.exe
Token: 35	1620	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe
Token: SeDebugPrivilege	1980	micoffice.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
2604	micoffice.exe
1980	micoffice.exe
1620	micoffice.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 1804 wrote to memory of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 1804 wrote to memory of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 1804 wrote to memory of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 1804 wrote to memory of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 1804 wrote to memory of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 1804 wrote to memory of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 1804 wrote to memory of 2984	1804	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	30
PID 2984 wrote to memory of 2492	2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	31
PID 2984 wrote to memory of 2492	2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	31
PID 2984 wrote to memory of 2492	2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	31
PID 2984 wrote to memory of 2492	2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	31
PID 2492 wrote to memory of 2364	2492	cmd.exe	33
PID 2492 wrote to memory of 2364	2492	cmd.exe	33
PID 2492 wrote to memory of 2364	2492	cmd.exe	33
PID 2492 wrote to memory of 2364	2492	cmd.exe	33
PID 2984 wrote to memory of 2604	2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	34
PID 2984 wrote to memory of 2604	2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	34
PID 2984 wrote to memory of 2604	2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	34
PID 2984 wrote to memory of 2604	2984	JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe	34
PID 2604 wrote to memory of 1980	2604	micoffice.exe	35
PID 2604 wrote to memory of 1980	2604	micoffice.exe	35
PID 2604 wrote to memory of 1980	2604	micoffice.exe	35
PID 2604 wrote to memory of 1980	2604	micoffice.exe	35
PID 2604 wrote to memory of 1980	2604	micoffice.exe	35
PID 2604 wrote to memory of 1980	2604	micoffice.exe	35
PID 2604 wrote to memory of 1980	2604	micoffice.exe	35
PID 2604 wrote to memory of 1980	2604	micoffice.exe	35
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36
PID 2604 wrote to memory of 1620	2604	micoffice.exe	36

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68aefa5292d0ac8e6d9a9c67b434fbb0.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\OTFDH.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2492
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "msoffice" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2364
- - C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
    "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2604
  - - C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
      "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1980
  - - C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
      "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1620

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

C:\Users\Admin\AppData\Local\Temp\OTFDH.bat

Filesize
155B

MD5
f07b93136766adced3c6f0d74d869da0

SHA1
787c530f33687d758b41295e01d7a9a1bba3a467

SHA256
cd603067047c028fe12d4b099d13b3681dd698d25bc32474184e9d8edd3ed701

SHA512
050105a5f14939a37f653421b24959cc90cb082b20df5bb1a81335fd0ad5e70c740b43f1d6df0fc7324551425894668acc3af0c533c7d90ff149d84e844c2d10

Download Submit
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe

Filesize
952KB

MD5
6d949163f01eb8b8d32bc3c7a9cb64ae

SHA1
93361a58817657e3e6e3edc6f8ac4b558159a6b4

SHA256
424cffc4a59ed22389445dc00c6ac8dcf87b131e652e5daf4781aec8d46776c9

SHA512
5deb3dcc056f84807ac7b701b6d4eac4f463fd50748b8af421ec28112fd1300dd29958b119676fbc4abe7f119d5af3c357ea7a77c1820cd60cf17eebeac07d29

Download Submit
memory/1804-36-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1804-12-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/1804-157-0x00000000029B0000-0x00000000029B1000-memory.dmp

Filesize
4KB

Download
memory/1804-32-0x00000000029F0000-0x00000000029F1000-memory.dmp

Filesize
4KB

Download
memory/1804-144-0x0000000002BC0000-0x0000000002BC1000-memory.dmp

Filesize
4KB

Download
memory/1804-136-0x00000000029C0000-0x00000000029C1000-memory.dmp

Filesize
4KB

Download
memory/1804-122-0x0000000000860000-0x0000000000861000-memory.dmp

Filesize
4KB

Download
memory/1804-112-0x0000000003000000-0x0000000003001000-memory.dmp

Filesize
4KB

Download
memory/1804-104-0x0000000003040000-0x0000000003041000-memory.dmp

Filesize
4KB

Download
memory/1804-90-0x0000000002820000-0x0000000002821000-memory.dmp

Filesize
4KB

Download
memory/1804-80-0x0000000002E00000-0x0000000002E01000-memory.dmp

Filesize
4KB

Download
memory/1804-72-0x0000000002E50000-0x0000000002E51000-memory.dmp

Filesize
4KB

Download
memory/1804-62-0x0000000000870000-0x0000000000871000-memory.dmp

Filesize
4KB

Download
memory/1804-60-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1804-52-0x0000000002C50000-0x0000000002C51000-memory.dmp

Filesize
4KB

Download
memory/1804-44-0x00000000027A0000-0x00000000027A1000-memory.dmp

Filesize
4KB

Download
memory/1804-286-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/1804-34-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1804-150-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/1804-283-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/1804-28-0x0000000002C70000-0x0000000002C71000-memory.dmp

Filesize
4KB

Download
memory/1804-30-0x00000000029F0000-0x00000000029F1000-memory.dmp

Filesize
4KB

Download
memory/1804-26-0x0000000002C70000-0x0000000002C71000-memory.dmp

Filesize
4KB

Download
memory/1804-24-0x0000000002A10000-0x0000000002A11000-memory.dmp

Filesize
4KB

Download
memory/1804-22-0x0000000002A10000-0x0000000002A11000-memory.dmp

Filesize
4KB

Download
memory/1804-20-0x0000000002830000-0x0000000002831000-memory.dmp

Filesize
4KB

Download
memory/1804-18-0x0000000002830000-0x0000000002831000-memory.dmp

Filesize
4KB

Download
memory/1804-14-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/1804-279-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1804-8-0x0000000002670000-0x0000000002671000-memory.dmp

Filesize
4KB

Download
memory/1804-6-0x0000000002670000-0x0000000002671000-memory.dmp

Filesize
4KB

Download
memory/1804-4-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/1804-3-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/1804-280-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1980-1043-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2984-1037-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2984-445-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads