darkcomet | 15656bffba0e2814b2c1ac576f7b8c5641ca19f640251b249983b72eafe51f5f

Analysis

max time kernel
148s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-10-2024 15:32

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General

Target

4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe
Size

840KB
MD5

4d9cc610b320ba38be66f36c55a9a771
SHA1

2f399ad060bdaeabd2bd62c87aaec35dfafcfec3
SHA256

15656bffba0e2814b2c1ac576f7b8c5641ca19f640251b249983b72eafe51f5f
SHA512

f85388ca9a7bea96fc4cac7cd26201c9970de7e98f9ccf464bc1c27eb65a45b541e9077826b13a9b274fb2ec8f4089c1c640686ae9cec549d5f39caf85352d97
SSDEEP

12288:L////czfa1FLFhPI8woWYXnPlVql5ciJ4FCzB+ZqlV2UQQA8j:L////cba1FrPVw6RinBeKV2UQQA8j

Score

10^/10

darkcomet discovery evasion persistence rat trojan

Malware Config

Signatures

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

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

svchsot.exe

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

Disables Task Manager via registry modification
evasion

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

FdcKJU.exesvchsot.exe

pid	Process
4888	FdcKJU.exe
1680	svchsot.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

FdcKJU.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSE = "C:\\Users\\Admin\\AppData\\Local\\Temp\\javaw.exe"	FdcKJU.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe

description	pid	Process	procid_target
PID 736 set thread context of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91

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 5 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

Processes:

4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.execsc.execvtres.exeFdcKJU.exesvchsot.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FdcKJU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchsot.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

svchsot.exe

pid	Process
1680	svchsot.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exesvchsot.exe

description	pid	Process
Token: SeDebugPrivilege	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1680	svchsot.exe
Token: SeSecurityPrivilege	1680	svchsot.exe
Token: SeTakeOwnershipPrivilege	1680	svchsot.exe
Token: SeLoadDriverPrivilege	1680	svchsot.exe
Token: SeSystemProfilePrivilege	1680	svchsot.exe
Token: SeSystemtimePrivilege	1680	svchsot.exe
Token: SeProfSingleProcessPrivilege	1680	svchsot.exe
Token: SeIncBasePriorityPrivilege	1680	svchsot.exe
Token: SeCreatePagefilePrivilege	1680	svchsot.exe
Token: SeBackupPrivilege	1680	svchsot.exe
Token: SeRestorePrivilege	1680	svchsot.exe
Token: SeShutdownPrivilege	1680	svchsot.exe
Token: SeDebugPrivilege	1680	svchsot.exe
Token: SeSystemEnvironmentPrivilege	1680	svchsot.exe
Token: SeChangeNotifyPrivilege	1680	svchsot.exe
Token: SeRemoteShutdownPrivilege	1680	svchsot.exe
Token: SeUndockPrivilege	1680	svchsot.exe
Token: SeManageVolumePrivilege	1680	svchsot.exe
Token: SeImpersonatePrivilege	1680	svchsot.exe
Token: SeCreateGlobalPrivilege	1680	svchsot.exe
Token: 33	1680	svchsot.exe
Token: 34	1680	svchsot.exe
Token: 35	1680	svchsot.exe
Token: 36	1680	svchsot.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svchsot.exe

pid	Process
1680	svchsot.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.execsc.exesvchsot.exe

description	pid	Process	procid_target
PID 736 wrote to memory of 2028	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	84
PID 736 wrote to memory of 2028	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	84
PID 736 wrote to memory of 2028	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	84
PID 2028 wrote to memory of 3216	2028	csc.exe	87
PID 2028 wrote to memory of 3216	2028	csc.exe	87
PID 2028 wrote to memory of 3216	2028	csc.exe	87
PID 736 wrote to memory of 4888	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	90
PID 736 wrote to memory of 4888	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	90
PID 736 wrote to memory of 4888	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	90
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 736 wrote to memory of 1680	736	4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe	91
PID 1680 wrote to memory of 228	1680	svchsot.exe	96
PID 1680 wrote to memory of 228	1680	svchsot.exe	96
PID 1680 wrote to memory of 228	1680	svchsot.exe	96
PID 1680 wrote to memory of 224	1680	svchsot.exe	97
PID 1680 wrote to memory of 224	1680	svchsot.exe	97

C:\Users\Admin\AppData\Local\Temp\4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4d9cc610b320ba38be66f36c55a9a771_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:736
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\-cjfrxaz.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESFA8D.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCFA8C.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3216
- C:\Users\Admin\AppData\Local\Temp\FdcKJU.exe
  "C:\Users\Admin\AppData\Local\Temp\FdcKJU.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:4888
- C:\Users\Admin\AppData\Local\Temp\svchsot.exe
  C:\Users\Admin\AppData\Local\Temp\svchsot.exe
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:228
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:224

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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\FdcKJU.exe

Filesize
4KB

MD5
4cdcd895a29c710977d8275f548a337b

SHA1
3e18ecd759acbc60c792807cb8b7e4772a7b1539

SHA256
4c96106aa77a9acaad9278a4816fbf59c9c0f5fb8f614f5bf34ae2275945a5d6

SHA512
f1cd8058a15ab73d0ac6af3903e8f1d5a79b83691036987ee706600fe7edc871e7d192c5f67ae8dc99e551553e40ec9cf8edd6725e44810664cfe1e39561a6d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESFA8D.tmp

Filesize
1KB

MD5
22a4cf6177ea3921792deec83ef88b13

SHA1
b5ab178a6dc30bc5bdfa56c718595972f88dafe9

SHA256
1051156666f4a7a740028eaf6397067eaaf884e64908f7fcfc06f65e374d7c7d

SHA512
d53690193855d0e5efac82d3132c8a122616c17770bc0f36c51dd097caae5d388e84f5a0c8c390016aaa59160def19a6b7c6e042a3a81be4695afba0a137e88f

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchsot.exe

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\-cjfrxaz.0.cs

Filesize
1KB

MD5
2213239e80e871f9ac49de583c363317

SHA1
488858c268a52e504b7eb08fa7ed32994b41c2c5

SHA256
5ae20ce7a86efecea947802d1098f7a958d0f02d0760dbd850fe8309c6487bc0

SHA512
1b4dd80972b0ba1edc406a494760d182b58c65dfaaa0036b1b8878a9efe49021bd5145bd0de4753256a4735825f8c2d80c071ff5230a181cfe91855e31610997

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\-cjfrxaz.cmdline

Filesize
259B

MD5
fcf5efbcc557e7ab68fe3462a35eb58c

SHA1
fb869a52732fb8d4632f17177c175399d3239cc8

SHA256
44a2e22f5cab6a90f4c6e2cb8de0b961d3cf29a9cac6f1c47985e2ff88b42f83

SHA512
765efe03eb79f2083280d8b9efc6d552a5ce154c2e61e5be486bd4453ba303766f2dec36f088973c0f91cbe7a99c28b7b064919e27acb37890f08ebecbfd8a6c

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSCFA8C.tmp

Filesize
644B

MD5
2c9c27e24f3f0397b2524d174acf6446

SHA1
4fe4388d76fbb30f1861e8bd4f0314898e878c2b

SHA256
360319079e102fd47bc7e6f87189b11567524cb6501b41c16cae6acbcb6ca7b6

SHA512
e8bbde09e515a4f7ffedaaa840a99e0622e8ae90793f35700e450992cd63c7c65cce45d43b6330bd19910634f78b8510667748ca18489bb2d52c9b11647cbb00

Download Submit
memory/736-1-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/736-2-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/736-32-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/736-0-0x0000000074852000-0x0000000074853000-memory.dmp

Filesize
4KB

Download
memory/1680-30-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-36-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-53-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-25-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-49-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-29-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-33-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-46-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-34-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-43-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-37-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-35-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-40-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1680-39-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2028-10-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/2028-15-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/4888-38-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/4888-22-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/4888-21-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download