darkcomet | a0c2bd0d0c66eb5441805931bdecb82cfc6f33f69f55353a593a9f4e668f177b

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-10-2024 02:52

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General

Target

5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Size

1.9MB
MD5

5a7c40ea1654391854e752bed98b84c8
SHA1

e35e3e765803176b63e244a65d6a44f9a479c2b3
SHA256

a0c2bd0d0c66eb5441805931bdecb82cfc6f33f69f55353a593a9f4e668f177b
SHA512

ffa7ab3540c910835dcf1ef44af628cc26ad080dba0ab3b7f754c6dbe6cb2ecc9429efc0b5192b4a2d7c7e77f3fe3c9437c771cbfef491aa28aebeb130a75f4a
SSDEEP

49152:LS+cXI27Fy0onthBc2N5wR7qjpCYCHKQ6jKgn57etetaR:LS+cY2honxc2P+9jqQjvesR

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

24.146.156.183:1604

Mutex

DC_MUTEX-7G8W2E6

Attributes

InstallPath
Install\rundl32.exe
gencode
iD5L57Cx6y9y
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\Install\\rundl32.exe"	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
1956	attrib.exe
2296	attrib.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid	Process
1576	notepad.exe

Executes dropped EXE 1 IoCs

Processes:

rundl32.exe

pid	Process
2232	rundl32.exe

Loads dropped DLL 2 IoCs

Processes:

5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe

pid	Process
2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exerundl32.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\Install\\rundl32.exe"	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\Install\\rundl32.exe"	rundl32.exe

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 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

Processes:

cmd.execmd.exeattrib.exeattrib.exerundl32.exenotepad.exe5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exenotepad.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	rundl32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exerundl32.exe

pid	Process
2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
2232	rundl32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundl32.exe

pid	Process
2232	rundl32.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exerundl32.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeSecurityPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeBackupPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeRestorePrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeShutdownPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeDebugPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeUndockPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: 33	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: 34	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: 35	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2232	rundl32.exe
Token: SeSecurityPrivilege	2232	rundl32.exe
Token: SeTakeOwnershipPrivilege	2232	rundl32.exe
Token: SeLoadDriverPrivilege	2232	rundl32.exe
Token: SeSystemProfilePrivilege	2232	rundl32.exe
Token: SeSystemtimePrivilege	2232	rundl32.exe
Token: SeProfSingleProcessPrivilege	2232	rundl32.exe
Token: SeIncBasePriorityPrivilege	2232	rundl32.exe
Token: SeCreatePagefilePrivilege	2232	rundl32.exe
Token: SeBackupPrivilege	2232	rundl32.exe
Token: SeRestorePrivilege	2232	rundl32.exe
Token: SeShutdownPrivilege	2232	rundl32.exe
Token: SeDebugPrivilege	2232	rundl32.exe
Token: SeSystemEnvironmentPrivilege	2232	rundl32.exe
Token: SeChangeNotifyPrivilege	2232	rundl32.exe
Token: SeRemoteShutdownPrivilege	2232	rundl32.exe
Token: SeUndockPrivilege	2232	rundl32.exe
Token: SeManageVolumePrivilege	2232	rundl32.exe
Token: SeImpersonatePrivilege	2232	rundl32.exe
Token: SeCreateGlobalPrivilege	2232	rundl32.exe
Token: 33	2232	rundl32.exe
Token: 34	2232	rundl32.exe
Token: 35	2232	rundl32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rundl32.exe

pid	Process
2232	rundl32.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.execmd.execmd.exerundl32.exe

description	pid	Process	procid_target
PID 2316 wrote to memory of 2856	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	30
PID 2316 wrote to memory of 2856	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	30
PID 2316 wrote to memory of 2856	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	30
PID 2316 wrote to memory of 2856	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	30
PID 2316 wrote to memory of 2892	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2892	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2892	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2892	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2316 wrote to memory of 1576	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	33
PID 2856 wrote to memory of 1956	2856	cmd.exe	35
PID 2856 wrote to memory of 1956	2856	cmd.exe	35
PID 2856 wrote to memory of 1956	2856	cmd.exe	35
PID 2856 wrote to memory of 1956	2856	cmd.exe	35
PID 2892 wrote to memory of 2296	2892	cmd.exe	36
PID 2892 wrote to memory of 2296	2892	cmd.exe	36
PID 2892 wrote to memory of 2296	2892	cmd.exe	36
PID 2892 wrote to memory of 2296	2892	cmd.exe	36
PID 2316 wrote to memory of 2232	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	37
PID 2316 wrote to memory of 2232	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	37
PID 2316 wrote to memory of 2232	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	37
PID 2316 wrote to memory of 2232	2316	5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe	37
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38
PID 2232 wrote to memory of 2784	2232	rundl32.exe	38

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
1956	attrib.exe
2296	attrib.exe

C:\Users\Admin\AppData\Local\Temp\5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2856
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\5a7c40ea1654391854e752bed98b84c8_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2296
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1576
- C:\Users\Admin\Documents\Install\rundl32.exe
  "C:\Users\Admin\Documents\Install\rundl32.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2784

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

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 Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Documents\Install\rundl32.exe

Filesize
1.9MB

MD5
5a7c40ea1654391854e752bed98b84c8

SHA1
e35e3e765803176b63e244a65d6a44f9a479c2b3

SHA256
a0c2bd0d0c66eb5441805931bdecb82cfc6f33f69f55353a593a9f4e668f177b

SHA512
ffa7ab3540c910835dcf1ef44af628cc26ad080dba0ab3b7f754c6dbe6cb2ecc9429efc0b5192b4a2d7c7e77f3fe3c9437c771cbfef491aa28aebeb130a75f4a

Download Submit
memory/1576-25-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/1576-11-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2232-78-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2232-77-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2232-84-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2232-83-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2232-82-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2232-81-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2232-80-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2232-79-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2316-3-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2316-74-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2316-75-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2316-0-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2316-1-0x0000000002130000-0x0000000002297000-memory.dmp

Filesize
1.4MB

Download
memory/2316-2-0x0000000000401000-0x000000000044F000-memory.dmp

Filesize
312KB

Download
memory/2316-7-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2316-9-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2316-4-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2316-8-0x0000000000400000-0x00000000007F2000-memory.dmp

Filesize
3.9MB

Download
memory/2784-73-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download