darkcomet | ae41a577dd9f2723afed0b2afba7dbc4e96a8b0ed489dde8a61c4fcd9591a0b8

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16/03/2025, 18:31

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General

Target

JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe
Size

2.1MB
MD5

7b4bc8f35e4887772855b3573a2147b2
SHA1

2daa51b1a67c1cea7168fbad460041ac3d99a974
SHA256

ae41a577dd9f2723afed0b2afba7dbc4e96a8b0ed489dde8a61c4fcd9591a0b8
SHA512

14675f03d2ceb84f1657c8b3bca47426540267640a8bd6100e928a9a0a1adb49f60d9ca9a930af6d5f9f80274277349c1213fb6c721c22e7e9bef99f2304db64
SSDEEP

49152:5m7NqIQ73q0zrc24judrdV0la4P1GURSYw:w5i63judrdV0lL1GU4Yw

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

24.13.208.88:100

http://jaxxyg5.zapto.org:100

Mutex

DC_MUTEX-7QBA6BH

Attributes

InstallPath
Windows Startup\Java Update.exe
gencode
99nVAa6KGXwo
install
true
offline_keylogger
true
persistence
true
reg_key
Java Update

rc4.plain

Extracted

Family

darkcomet

Attributes

gencode
install
false
offline_keylogger
false
persistence
false

rc4.plain

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:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\Windows Startup\\Java Update.exe"	vbc.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
560	attrib.exe
1092	attrib.exe

Executes dropped EXE 2 IoCs

pid	Process
2176	FLORISTBOOTER 3.1.EXE
1652	Java Update.exe

Loads dropped DLL 2 IoCs

pid	Process
2236	vbc.exe
2236	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype Update = "C:\\Users\\Admin\\AppData\\Roaming\\Skype Update.exe"	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Java Update = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\Windows Startup\\Java Update.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2844 set thread context of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe	attrib.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727	attrib.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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_7b4bc8f35e4887772855b3573a2147b2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FLORISTBOOTER 3.1.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Java Update.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2236	vbc.exe
Token: SeSecurityPrivilege	2236	vbc.exe
Token: SeTakeOwnershipPrivilege	2236	vbc.exe
Token: SeLoadDriverPrivilege	2236	vbc.exe
Token: SeSystemProfilePrivilege	2236	vbc.exe
Token: SeSystemtimePrivilege	2236	vbc.exe
Token: SeProfSingleProcessPrivilege	2236	vbc.exe
Token: SeIncBasePriorityPrivilege	2236	vbc.exe
Token: SeCreatePagefilePrivilege	2236	vbc.exe
Token: SeBackupPrivilege	2236	vbc.exe
Token: SeRestorePrivilege	2236	vbc.exe
Token: SeShutdownPrivilege	2236	vbc.exe
Token: SeDebugPrivilege	2236	vbc.exe
Token: SeSystemEnvironmentPrivilege	2236	vbc.exe
Token: SeChangeNotifyPrivilege	2236	vbc.exe
Token: SeRemoteShutdownPrivilege	2236	vbc.exe
Token: SeUndockPrivilege	2236	vbc.exe
Token: SeManageVolumePrivilege	2236	vbc.exe
Token: SeImpersonatePrivilege	2236	vbc.exe
Token: SeCreateGlobalPrivilege	2236	vbc.exe
Token: 33	2236	vbc.exe
Token: 34	2236	vbc.exe
Token: 35	2236	vbc.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2844 wrote to memory of 2236	2844	JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe	30
PID 2236 wrote to memory of 2724	2236	vbc.exe	31
PID 2236 wrote to memory of 2724	2236	vbc.exe	31
PID 2236 wrote to memory of 2724	2236	vbc.exe	31
PID 2236 wrote to memory of 2724	2236	vbc.exe	31
PID 2236 wrote to memory of 2744	2236	vbc.exe	32
PID 2236 wrote to memory of 2744	2236	vbc.exe	32
PID 2236 wrote to memory of 2744	2236	vbc.exe	32
PID 2236 wrote to memory of 2744	2236	vbc.exe	32
PID 2236 wrote to memory of 2176	2236	vbc.exe	35
PID 2236 wrote to memory of 2176	2236	vbc.exe	35
PID 2236 wrote to memory of 2176	2236	vbc.exe	35
PID 2236 wrote to memory of 2176	2236	vbc.exe	35
PID 2724 wrote to memory of 560	2724	cmd.exe	36
PID 2724 wrote to memory of 560	2724	cmd.exe	36
PID 2724 wrote to memory of 560	2724	cmd.exe	36
PID 2724 wrote to memory of 560	2724	cmd.exe	36
PID 2744 wrote to memory of 1092	2744	cmd.exe	37
PID 2744 wrote to memory of 1092	2744	cmd.exe	37
PID 2744 wrote to memory of 1092	2744	cmd.exe	37
PID 2744 wrote to memory of 1092	2744	cmd.exe	37
PID 2236 wrote to memory of 1652	2236	vbc.exe	38
PID 2236 wrote to memory of 1652	2236	vbc.exe	38
PID 2236 wrote to memory of 1652	2236	vbc.exe	38
PID 2236 wrote to memory of 1652	2236	vbc.exe	38
PID 2236 wrote to memory of 1652	2236	vbc.exe	38
PID 2236 wrote to memory of 1652	2236	vbc.exe	38
PID 2236 wrote to memory of 1652	2236	vbc.exe	38

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
560	attrib.exe
1092	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b4bc8f35e4887772855b3573a2147b2.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - 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:2236
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2724
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
      4⤵
      Sets file to hidden
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:560
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2744
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
      4⤵
      Sets file to hidden
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:1092
- - C:\Users\Admin\AppData\Local\Temp\FLORISTBOOTER 3.1.EXE
    "C:\Users\Admin\AppData\Local\Temp\FLORISTBOOTER 3.1.EXE"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2176
- - C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windows Startup\Java Update.exe
    "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windows Startup\Java Update.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1652

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windows Startup\Java Update.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\Users\Admin\AppData\Local\Temp\FLORISTBOOTER 3.1.EXE

Filesize
306KB

MD5
14db65bac0b48a2345dacf817a398ed7

SHA1
350fe4a76c6a2b998e5c447c12508d0168ada10a

SHA256
a013e82cfeeeb28f0aeb2990c8abfdc65387d63cf6b11ee62259bea7b10f0741

SHA512
a31196b689d4e8c5c36ea71d1a5c09652286e07755689b3226863c2e1d162fb813a2edbfa024ef2268edb13e75ca6b933fae83c887c91fe1c2f22e382a7cf1c9

Download Submit
memory/2176-36-0x00000000003E0000-0x0000000000434000-memory.dmp

Filesize
336KB

Download
memory/2236-10-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-8-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-21-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2236-16-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-14-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-12-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-43-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-9-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-20-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-22-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-4-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-6-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-25-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2236-24-0x0000000000400000-0x000000000052F000-memory.dmp

Filesize
1.2MB

Download
memory/2844-23-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-2-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-1-0x0000000074030000-0x00000000745DB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-0-0x0000000074031000-0x0000000074032000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads