darkcomet | 543754a66fa711c354599ed696e2f795de928fb3e661d316fd9774b05f3e5a46

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/02/2025, 21:53

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General

Target

JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
Size

952KB
MD5

0e6440e43ad14bb92f1d20cfe352bef0
SHA1

d2351bbd2ec971a352efb2c3fedd23030e89c9c8
SHA256

543754a66fa711c354599ed696e2f795de928fb3e661d316fd9774b05f3e5a46
SHA512

aa4150a3ed74a6e585a7f738905b501b26d261b9a4df0ea41392322d398a14138ece73c4f2f5e71d753ee8b2e606458526f637f39d9cdc49cdbabb7c03a2a561
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
3568	micoffice.exe
1268	micoffice.exe
3332	micoffice.exe

Loads dropped DLL 5 IoCs

pid	Process
3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.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-1-5-21-3533259084-2542256011-65585152-1000\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 2012 set thread context of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 3568 set thread context of 1268	3568	micoffice.exe	35
PID 3568 set thread context of 3332	3568	micoffice.exe	36

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3324-448-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1268-889-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/3324-1037-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1268-1044-0x0000000000400000-0x000000000040B000-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	micoffice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3332	micoffice.exe
Token: SeSecurityPrivilege	3332	micoffice.exe
Token: SeTakeOwnershipPrivilege	3332	micoffice.exe
Token: SeLoadDriverPrivilege	3332	micoffice.exe
Token: SeSystemProfilePrivilege	3332	micoffice.exe
Token: SeSystemtimePrivilege	3332	micoffice.exe
Token: SeProfSingleProcessPrivilege	3332	micoffice.exe
Token: SeIncBasePriorityPrivilege	3332	micoffice.exe
Token: SeCreatePagefilePrivilege	3332	micoffice.exe
Token: SeBackupPrivilege	3332	micoffice.exe
Token: SeRestorePrivilege	3332	micoffice.exe
Token: SeShutdownPrivilege	3332	micoffice.exe
Token: SeDebugPrivilege	3332	micoffice.exe
Token: SeSystemEnvironmentPrivilege	3332	micoffice.exe
Token: SeChangeNotifyPrivilege	3332	micoffice.exe
Token: SeRemoteShutdownPrivilege	3332	micoffice.exe
Token: SeUndockPrivilege	3332	micoffice.exe
Token: SeManageVolumePrivilege	3332	micoffice.exe
Token: SeImpersonatePrivilege	3332	micoffice.exe
Token: SeCreateGlobalPrivilege	3332	micoffice.exe
Token: 33	3332	micoffice.exe
Token: 34	3332	micoffice.exe
Token: 35	3332	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe
Token: SeDebugPrivilege	1268	micoffice.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
3568	micoffice.exe
1268	micoffice.exe
3332	micoffice.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 2012 wrote to memory of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 2012 wrote to memory of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 2012 wrote to memory of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 2012 wrote to memory of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 2012 wrote to memory of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 2012 wrote to memory of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 2012 wrote to memory of 3324	2012	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	30
PID 3324 wrote to memory of 3480	3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	31
PID 3324 wrote to memory of 3480	3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	31
PID 3324 wrote to memory of 3480	3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	31
PID 3324 wrote to memory of 3480	3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	31
PID 3480 wrote to memory of 3544	3480	cmd.exe	33
PID 3480 wrote to memory of 3544	3480	cmd.exe	33
PID 3480 wrote to memory of 3544	3480	cmd.exe	33
PID 3480 wrote to memory of 3544	3480	cmd.exe	33
PID 3324 wrote to memory of 3568	3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	34
PID 3324 wrote to memory of 3568	3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	34
PID 3324 wrote to memory of 3568	3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	34
PID 3324 wrote to memory of 3568	3324	JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe	34
PID 3568 wrote to memory of 1268	3568	micoffice.exe	35
PID 3568 wrote to memory of 1268	3568	micoffice.exe	35
PID 3568 wrote to memory of 1268	3568	micoffice.exe	35
PID 3568 wrote to memory of 1268	3568	micoffice.exe	35
PID 3568 wrote to memory of 1268	3568	micoffice.exe	35
PID 3568 wrote to memory of 1268	3568	micoffice.exe	35
PID 3568 wrote to memory of 1268	3568	micoffice.exe	35
PID 3568 wrote to memory of 1268	3568	micoffice.exe	35
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36
PID 3568 wrote to memory of 3332	3568	micoffice.exe	36

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0e6440e43ad14bb92f1d20cfe352bef0.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3324
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\QVRFR.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3480
  - - 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:3544
- - 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:3568
  - - 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:1268
  - - 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:3332

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\QVRFR.bat

Filesize
155B

MD5
f07b93136766adced3c6f0d74d869da0

SHA1
787c530f33687d758b41295e01d7a9a1bba3a467

SHA256
cd603067047c028fe12d4b099d13b3681dd698d25bc32474184e9d8edd3ed701

SHA512
050105a5f14939a37f653421b24959cc90cb082b20df5bb1a81335fd0ad5e70c740b43f1d6df0fc7324551425894668acc3af0c533c7d90ff149d84e844c2d10

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

Filesize
952KB

MD5
be755a12716a81eb175ad7b0d0f78252

SHA1
edbe61fa51e855f00ab6501ea35500c309dd4bea

SHA256
1af7d28e43c94c326049c929ad8bb535dab8a4c11ba2c928a197addf9aae8945

SHA512
1cd4d9004ba83c45f12ca9055fc140e33576b5361dc46d47aea71a6169d8018d6c575a813e56e74e29eb917ef9fd5934b450aa93ce4e7c61fead4a58d4b405d6

Download Submit
memory/1268-1044-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1268-889-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2012-32-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

Filesize
4KB

Download
memory/2012-150-0x0000000001D00000-0x0000000001D01000-memory.dmp

Filesize
4KB

Download
memory/2012-144-0x0000000002CD0000-0x0000000002CD1000-memory.dmp

Filesize
4KB

Download
memory/2012-136-0x0000000003140000-0x0000000003141000-memory.dmp

Filesize
4KB

Download
memory/2012-122-0x0000000002EB0000-0x0000000002EB1000-memory.dmp

Filesize
4KB

Download
memory/2012-112-0x0000000002D00000-0x0000000002D01000-memory.dmp

Filesize
4KB

Download
memory/2012-104-0x0000000002D20000-0x0000000002D21000-memory.dmp

Filesize
4KB

Download
memory/2012-90-0x0000000002F80000-0x0000000002F81000-memory.dmp

Filesize
4KB

Download
memory/2012-80-0x0000000002D60000-0x0000000002D61000-memory.dmp

Filesize
4KB

Download
memory/2012-72-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2012-62-0x0000000002970000-0x0000000002971000-memory.dmp

Filesize
4KB

Download
memory/2012-60-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2012-52-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

Download
memory/2012-44-0x0000000002870000-0x0000000002871000-memory.dmp

Filesize
4KB

Download
memory/2012-36-0x0000000002D90000-0x0000000002D91000-memory.dmp

Filesize
4KB

Download
memory/2012-34-0x0000000002D90000-0x0000000002D91000-memory.dmp

Filesize
4KB

Download
memory/2012-30-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

Filesize
4KB

Download
memory/2012-228-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2012-4-0x00000000028E0000-0x00000000028E1000-memory.dmp

Filesize
4KB

Download
memory/2012-26-0x00000000029C0000-0x00000000029C1000-memory.dmp

Filesize
4KB

Download
memory/2012-24-0x00000000028A0000-0x00000000028A1000-memory.dmp

Filesize
4KB

Download
memory/2012-22-0x00000000028A0000-0x00000000028A1000-memory.dmp

Filesize
4KB

Download
memory/2012-20-0x00000000027E0000-0x00000000027E1000-memory.dmp

Filesize
4KB

Download
memory/2012-18-0x00000000027E0000-0x00000000027E1000-memory.dmp

Filesize
4KB

Download
memory/2012-14-0x0000000002AA0000-0x0000000002AA1000-memory.dmp

Filesize
4KB

Download
memory/2012-12-0x0000000002AA0000-0x0000000002AA1000-memory.dmp

Filesize
4KB

Download
memory/2012-8-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2012-6-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2012-28-0x00000000029C0000-0x00000000029C1000-memory.dmp

Filesize
4KB

Download
memory/2012-2-0x00000000028E0000-0x00000000028E1000-memory.dmp

Filesize
4KB

Download
memory/2012-225-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2012-213-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2012-217-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/3324-448-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3324-1037-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3324-432-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads