darkcomet | e4f036226324c182632a98380492bb27763ff6cdd9fb0d245f192466b0e7e843

General

Target

845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe
Size

1.2MB
MD5

845b6ee63a9152cb8643b92a3ae90af9
SHA1

083e3c8909a8b9ae7c8a2c8a863e2b946552d713
SHA256

e4f036226324c182632a98380492bb27763ff6cdd9fb0d245f192466b0e7e843
SHA512

6581b7817354bebbf66f43bdfddec67c9509e60ae25d0cffdc4d5e887edf9605832c8d6e495aeb48a62973781d5daae24c8057fcfb8864d4d9eaf0d0543293e5
SSDEEP

12288:NVYOQyD2jIzt+cpUlnKFP8xMz1Tv5G9GHZK/wgbrtMuWsL2tEFa1g9w3ppvD0tY1:4WMKUav5QbaCPUItj1uaQp6m

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

xoman.no-ip.org:1604

Mutex

DCMIN_MUTEX-ALKG91K

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
CrUq1cZTXVCH
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

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

Processes:

vbc.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\DCSCMIN\\IMDCSC.exe"	vbc.exe

Executes dropped EXE 1 IoCs

Processes:

IMDCSC.exe

pid	Process
2280	IMDCSC.exe

Loads dropped DLL 1 IoCs

Processes:

vbc.exe

pid	Process
2188	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

vbc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Windows\\system32\\DCSCMIN\\IMDCSC.exe"	vbc.exe

Drops file in System32 directory 2 IoCs

Processes:

vbc.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\DCSCMIN\IMDCSC.exe	vbc.exe
File created	C:\Windows\SysWOW64\DCSCMIN\IMDCSC.exe	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2172 set thread context of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30

System Location Discovery: System Language Discovery 1 TTPs 3 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:

845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exevbc.exeIMDCSC.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2188	vbc.exe
Token: SeSecurityPrivilege	2188	vbc.exe
Token: SeTakeOwnershipPrivilege	2188	vbc.exe
Token: SeLoadDriverPrivilege	2188	vbc.exe
Token: SeSystemProfilePrivilege	2188	vbc.exe
Token: SeSystemtimePrivilege	2188	vbc.exe
Token: SeProfSingleProcessPrivilege	2188	vbc.exe
Token: SeIncBasePriorityPrivilege	2188	vbc.exe
Token: SeCreatePagefilePrivilege	2188	vbc.exe
Token: SeBackupPrivilege	2188	vbc.exe
Token: SeRestorePrivilege	2188	vbc.exe
Token: SeShutdownPrivilege	2188	vbc.exe
Token: SeDebugPrivilege	2188	vbc.exe
Token: SeSystemEnvironmentPrivilege	2188	vbc.exe
Token: SeChangeNotifyPrivilege	2188	vbc.exe
Token: SeRemoteShutdownPrivilege	2188	vbc.exe
Token: SeUndockPrivilege	2188	vbc.exe
Token: SeManageVolumePrivilege	2188	vbc.exe
Token: SeImpersonatePrivilege	2188	vbc.exe
Token: SeCreateGlobalPrivilege	2188	vbc.exe
Token: 33	2188	vbc.exe
Token: 34	2188	vbc.exe
Token: 35	2188	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exevbc.exe

description	pid	Process	procid_target
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2172 wrote to memory of 2188	2172	845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe	30
PID 2188 wrote to memory of 2280	2188	vbc.exe	31
PID 2188 wrote to memory of 2280	2188	vbc.exe	31
PID 2188 wrote to memory of 2280	2188	vbc.exe	31
PID 2188 wrote to memory of 2280	2188	vbc.exe	31

C:\Users\Admin\AppData\Local\Temp\845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\845b6ee63a9152cb8643b92a3ae90af9_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- 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
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2188
- - C:\Windows\SysWOW64\DCSCMIN\IMDCSC.exe
    "C:\Windows\system32\DCSCMIN\IMDCSC.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\DCSCMIN\IMDCSC.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/2172-23-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2172-1-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2172-2-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2172-0-0x0000000074481000-0x0000000074482000-memory.dmp

Filesize
4KB

Download
memory/2188-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2188-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-21-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-24-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-3-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2188-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads