darkcomet | b16cecf93f1740fe9bb268d4ae730f55243479993efe7b5f9add81026ac04c11

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 11:12

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General

Target

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
Size

1.4MB
MD5

79575764ecacaf8e91677fd21bd7b7f4
SHA1

4222470d724237d30f5b4dc0321eff96bf987440
SHA256

b16cecf93f1740fe9bb268d4ae730f55243479993efe7b5f9add81026ac04c11
SHA512

e9eae65e0198115b9138db083dcebf138c00f1b48710f8ec93f65ff69eb07960acaa1918ff76979e447ec0d22abe56240e14fa0bef34992cb640fff75fbf7fc5
SSDEEP

24576:7W/myG7H1QVtKDYb++V19Hfjq+dSg7Zmn4pkE3KWTrXYZcD942h:KtKDYbxVrPdz4nY3XYOD9Dh

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

Signatures

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

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svhost.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	svhost.exe

Drops startup file 2 IoCs

Processes:

cmd.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundll32 .exe	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundll32 .exe	cmd.exe

Executes dropped EXE 2 IoCs

Processes:

svhost.exesvhost.exe

pid	Process
2708	svhost.exe
2804	svhost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Roaming\\rundll32 .exe"	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1728 set thread context of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35

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:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.execmd.exewscript.exesvhost.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svhost.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	svhost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	svhost.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svhost.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	svhost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

pid	Process
1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exesvhost.exe

description	pid	Process
Token: SeDebugPrivilege	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2708	svhost.exe
Token: SeSecurityPrivilege	2708	svhost.exe
Token: SeTakeOwnershipPrivilege	2708	svhost.exe
Token: SeLoadDriverPrivilege	2708	svhost.exe
Token: SeSystemProfilePrivilege	2708	svhost.exe
Token: SeSystemtimePrivilege	2708	svhost.exe
Token: SeProfSingleProcessPrivilege	2708	svhost.exe
Token: SeIncBasePriorityPrivilege	2708	svhost.exe
Token: SeCreatePagefilePrivilege	2708	svhost.exe
Token: SeBackupPrivilege	2708	svhost.exe
Token: SeRestorePrivilege	2708	svhost.exe
Token: SeShutdownPrivilege	2708	svhost.exe
Token: SeDebugPrivilege	2708	svhost.exe
Token: SeSystemEnvironmentPrivilege	2708	svhost.exe
Token: SeChangeNotifyPrivilege	2708	svhost.exe
Token: SeRemoteShutdownPrivilege	2708	svhost.exe
Token: SeUndockPrivilege	2708	svhost.exe
Token: SeManageVolumePrivilege	2708	svhost.exe
Token: SeImpersonatePrivilege	2708	svhost.exe
Token: SeCreateGlobalPrivilege	2708	svhost.exe
Token: 33	2708	svhost.exe
Token: 34	2708	svhost.exe
Token: 35	2708	svhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svhost.exe

pid	Process
2708	svhost.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.execmd.exewscript.exe

description	pid	Process	procid_target
PID 1728 wrote to memory of 696	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	31
PID 1728 wrote to memory of 696	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	31
PID 1728 wrote to memory of 696	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	31
PID 1728 wrote to memory of 696	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	31
PID 696 wrote to memory of 1972	696	cmd.exe	33
PID 696 wrote to memory of 1972	696	cmd.exe	33
PID 696 wrote to memory of 1972	696	cmd.exe	33
PID 696 wrote to memory of 1972	696	cmd.exe	33
PID 1728 wrote to memory of 2804	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	34
PID 1728 wrote to memory of 2804	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	34
PID 1728 wrote to memory of 2804	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	34
PID 1728 wrote to memory of 2804	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	34
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1728 wrote to memory of 2708	1728	79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe	35
PID 1972 wrote to memory of 2916	1972	wscript.exe	36
PID 1972 wrote to memory of 2916	1972	wscript.exe	36
PID 1972 wrote to memory of 2916	1972	wscript.exe	36
PID 1972 wrote to memory of 2916	1972	wscript.exe	36

C:\Users\Admin\AppData\Local\Temp\79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\79575764ecacaf8e91677fd21bd7b7f4_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Roaming\\java.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:696
- - C:\Windows\SysWOW64\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Roaming\invs.vbs" "C:\Users\Admin\AppData\Roaming\java2.bat
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1972
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Roaming\java2.bat" "
      4⤵
      Drops startup file
      System Location Discovery: System Language Discovery
      PID:2916
- \??\c:\svhost.exe
  c:\svhost.exe
  2⤵
  - Executes dropped EXE
  PID:2804
- \??\c:\svhost.exe
  c:\svhost.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2708

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

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\Roaming\invs.vbs

Filesize
78B

MD5
c578d9653b22800c3eb6b6a51219bbb8

SHA1
a97aa251901bbe179a48dbc7a0c1872e163b1f2d

SHA256
20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

SHA512
3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

Download Submit
C:\Users\Admin\AppData\Roaming\java.bat

Filesize
53B

MD5
1896de26a454df8628034ca3e0649905

SHA1
76b98d95a85d043539706b89194c46cf14464abe

SHA256
d85e713743c7e622166fb0f79478de5eabd53d3fe92bd2011ab441bc85ef2208

SHA512
ef69dacd7e717dff05f8a70c5b9a94011f2df3201cc41d5f8cc030f350b069dc090c5b0d3d0bd19098a187977a82d570e1ee153849f609a65889ba789da953d2

Download Submit
C:\Users\Admin\AppData\Roaming\java2.bat

Filesize
160B

MD5
e8170b6565dfb34d114cfa398ba77296

SHA1
9079335b0ec9a509b7344cb98713fc0b52afa36e

SHA256
76ff7c88cc815c8acd61f835033baf5b92eee085e7316c7230f7c363d1e1974b

SHA512
1b473fe0a68642ff1741f4619f819b040f8d54696d40e74dd9ad692b56729e455bbe54cb76b382bb1fce5e1eae97dd8c99aeb762915f7147bba59d0ba60d004d

Download Submit
C:\Users\Admin\AppData\Roaming\rundll32-.txt

Filesize
1.4MB

MD5
79575764ecacaf8e91677fd21bd7b7f4

SHA1
4222470d724237d30f5b4dc0321eff96bf987440

SHA256
b16cecf93f1740fe9bb268d4ae730f55243479993efe7b5f9add81026ac04c11

SHA512
e9eae65e0198115b9138db083dcebf138c00f1b48710f8ec93f65ff69eb07960acaa1918ff76979e447ec0d22abe56240e14fa0bef34992cb640fff75fbf7fc5

Download Submit
C:\svhost.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1728-1-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/1728-2-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/1728-60-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/1728-55-0x0000000074F90000-0x000000007553B000-memory.dmp

Filesize
5.7MB

Download
memory/1728-0-0x0000000074F91000-0x0000000074F92000-memory.dmp

Filesize
4KB

Download
memory/2708-28-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-42-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-53-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-52-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-46-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-38-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-36-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-34-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-32-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-30-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-45-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-25-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-40-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-44-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-26-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-54-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-56-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-57-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-24-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-61-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-63-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-64-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-65-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-67-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-68-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-69-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-70-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-71-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-72-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-73-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download