darkcomet | 1c21cb19240f4e2b1ec3490c54a437b84345f41298ccc3d5c17fe8bf3dd16ba3

General

Target

$$dinamikCristal$$.exe
Size

746KB
MD5

54090521d667d44350d72b066c6f242a
SHA1

20424c81eb3b6bd68467333f7e45e60f7571518a
SHA256

1c21cb19240f4e2b1ec3490c54a437b84345f41298ccc3d5c17fe8bf3dd16ba3
SHA512

fde7c2f5f2558bf315e567898f93bffa9320670ebddb6bbba66541c3a93f21737398ed7d1dd134086bb9e9cdd00f580f434ac210dd68e57a371df855af3222bc
SSDEEP

12288:jBdlwHRn+WlYV+8T+tkpeZuCWbKeYQjL7niHpwrcURuwSs/Y:jBkVdlYAKc1WmEjL7niHpwrcU2s/Y

Score

10^/10

darkcomet guest16 evasion rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

4.tcp.eu.ngrok.io:16885

4.tcp.eu.ngrok.io:1604

Mutex

DC_MUTEX-Z4PMKKC

Attributes

gencode
42mAfR1mKy33
install
false
offline_keylogger
true
persistence
false

Signatures

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

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

dinamikPack.exe

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

Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

dinamikPack.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" dinamikPack.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	dinamikPack.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

dinamikPack.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	dinamikPack.exe

Disables Task Manager via registry modification
evasion
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

2260 attrib.exe
1688 attrib.exe

pid	process
2260	attrib.exe
1688	attrib.exe

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

$$dinamikCristal$$.exedinamikPack.sfx.exedinamikPack.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	$$dinamikCristal$$.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	dinamikPack.sfx.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	dinamikPack.exe

Executes dropped EXE 2 IoCs

Processes:

dinamikPack.sfx.exedinamikPack.exe

pid process

2540 dinamikPack.sfx.exe
3576 dinamikPack.exe

pid	process
2540	dinamikPack.sfx.exe
3576	dinamikPack.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\dinamikPack.exe	upx
behavioral1/memory/3576-23-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/3576-26-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

dinamikPack.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" dinamikPack.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service
T1102

Processes:

flow ioc

19 4.tcp.eu.ngrok.io
58 4.tcp.eu.ngrok.io
9 4.tcp.eu.ngrok.io

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	dinamikPack.exe

flow	ioc
19	4.tcp.eu.ngrok.io
58	4.tcp.eu.ngrok.io
9	4.tcp.eu.ngrok.io

Drops file in Windows directory 5 IoCs

Processes:

$$dinamikCristal$$.exe

description	ioc	process
File created	C:\Windows\dinamikPack.sfx.exe	$$dinamikCristal$$.exe
File opened for modification	C:\Windows\dinamikPack.sfx.exe	$$dinamikCristal$$.exe
File created	C:\Windows\dinamikPack.bat	$$dinamikCristal$$.exe
File opened for modification	C:\Windows\dinamikPack.bat	$$dinamikCristal$$.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240602359	$$dinamikCristal$$.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

dinamikPack.exe

pid process

3576 dinamikPack.exe

pid	process
3576	dinamikPack.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

dinamikPack.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3576	dinamikPack.exe
Token: SeSecurityPrivilege	3576	dinamikPack.exe
Token: SeTakeOwnershipPrivilege	3576	dinamikPack.exe
Token: SeLoadDriverPrivilege	3576	dinamikPack.exe
Token: SeSystemProfilePrivilege	3576	dinamikPack.exe
Token: SeSystemtimePrivilege	3576	dinamikPack.exe
Token: SeProfSingleProcessPrivilege	3576	dinamikPack.exe
Token: SeIncBasePriorityPrivilege	3576	dinamikPack.exe
Token: SeCreatePagefilePrivilege	3576	dinamikPack.exe
Token: SeBackupPrivilege	3576	dinamikPack.exe
Token: SeRestorePrivilege	3576	dinamikPack.exe
Token: SeShutdownPrivilege	3576	dinamikPack.exe
Token: SeDebugPrivilege	3576	dinamikPack.exe
Token: SeSystemEnvironmentPrivilege	3576	dinamikPack.exe
Token: SeChangeNotifyPrivilege	3576	dinamikPack.exe
Token: SeRemoteShutdownPrivilege	3576	dinamikPack.exe
Token: SeUndockPrivilege	3576	dinamikPack.exe
Token: SeManageVolumePrivilege	3576	dinamikPack.exe
Token: SeImpersonatePrivilege	3576	dinamikPack.exe
Token: SeCreateGlobalPrivilege	3576	dinamikPack.exe
Token: 33	3576	dinamikPack.exe
Token: 34	3576	dinamikPack.exe
Token: 35	3576	dinamikPack.exe
Token: 36	3576	dinamikPack.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

dinamikPack.exe

pid process

3576 dinamikPack.exe

pid	process
3576	dinamikPack.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

$$dinamikCristal$$.execmd.exedinamikPack.sfx.exedinamikPack.execmd.execmd.exe

description	pid	process	target process
PID 2936 wrote to memory of 4232	2936	$$dinamikCristal$$.exe	cmd.exe
PID 2936 wrote to memory of 4232	2936	$$dinamikCristal$$.exe	cmd.exe
PID 2936 wrote to memory of 4232	2936	$$dinamikCristal$$.exe	cmd.exe
PID 4232 wrote to memory of 2540	4232	cmd.exe	dinamikPack.sfx.exe
PID 4232 wrote to memory of 2540	4232	cmd.exe	dinamikPack.sfx.exe
PID 4232 wrote to memory of 2540	4232	cmd.exe	dinamikPack.sfx.exe
PID 2540 wrote to memory of 3576	2540	dinamikPack.sfx.exe	dinamikPack.exe
PID 2540 wrote to memory of 3576	2540	dinamikPack.sfx.exe	dinamikPack.exe
PID 2540 wrote to memory of 3576	2540	dinamikPack.sfx.exe	dinamikPack.exe
PID 3576 wrote to memory of 976	3576	dinamikPack.exe	cmd.exe
PID 3576 wrote to memory of 976	3576	dinamikPack.exe	cmd.exe
PID 3576 wrote to memory of 976	3576	dinamikPack.exe	cmd.exe
PID 3576 wrote to memory of 920	3576	dinamikPack.exe	cmd.exe
PID 3576 wrote to memory of 920	3576	dinamikPack.exe	cmd.exe
PID 3576 wrote to memory of 920	3576	dinamikPack.exe	cmd.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 3576 wrote to memory of 2476	3576	dinamikPack.exe	notepad.exe
PID 976 wrote to memory of 2260	976	cmd.exe	attrib.exe
PID 976 wrote to memory of 2260	976	cmd.exe	attrib.exe
PID 976 wrote to memory of 2260	976	cmd.exe	attrib.exe
PID 920 wrote to memory of 1688	920	cmd.exe	attrib.exe
PID 920 wrote to memory of 1688	920	cmd.exe	attrib.exe
PID 920 wrote to memory of 1688	920	cmd.exe	attrib.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

dinamikPack.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	dinamikPack.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	dinamikPack.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	dinamikPack.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

2260 attrib.exe
1688 attrib.exe

pid	process
2260	attrib.exe
1688	attrib.exe

C:\Users\Admin\AppData\Local\Temp\$$dinamikCristal$$.exe
"C:\Users\Admin\AppData\Local\Temp\$$dinamikCristal$$.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2936

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Windows\dinamikPack.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:4232

C:\Windows\dinamikPack.sfx.exe
dinamikPack.sfx -p320232023202 dC:\Users\Admin\AppData\Local\Temp
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2540

C:\Users\Admin\AppData\Local\Temp\dinamikPack.exe
"C:\Users\Admin\AppData\Local\Temp\dinamikPack.exe"
4⤵
- Modifies firewall policy service
- Windows security bypass
- Disables RegEdit via registry modification
- Checks computer location settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3576

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\dinamikPack.exe" +s +h
5⤵
- Suspicious use of WriteProcessMemory
PID:976

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\dinamikPack.exe" +s +h
6⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2260

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
5⤵
- Suspicious use of WriteProcessMemory
PID:920

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
6⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1688

C:\Windows\SysWOW64\notepad.exe
notepad
5⤵
PID:2476

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

4

T1112

Impair Defenses

2

T1562

Disable or Modify Tools

2

T1562.001

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\dinamikPack.exe
Filesize
251KB

MD5
cb93d92a764597510929423bf7b276a2

SHA1
0d436dc6657b49b95baa9880c0485e28ce5ba4fc

SHA256
20a207641e090e8ba7172e95efd4e7f9315a19bb6d15344997c1aa68b0e6a633

SHA512
58eb408c6f309e8e47b71877064d487aa05ba2a8c4d06d3c7ca624de1219568fc38b8ecea3321726cf275e6abb4d7e5b39fc312d592156b99d0d60366618112d

Download Submit
C:\Windows\dinamikPack.bat
Filesize
55B

MD5
e69d25e8e79b1e64ab95cc95c63e1216

SHA1
f6ddca5d2683871e1385a87fb7a4449340dd0438

SHA256
bdf4826ae25feeb71f77a509b155f1d83adc4fa3024af979f638e185762171d6

SHA512
1f6179c5f1ea54ada17ab55b75be8b49f9ff5928ea827462be34b14298efe62b9a052c7ec5fdc698102cbe83b43458a9dee22bf5afcf8c3df7f31bca6f01af70

Download Submit
C:\Windows\dinamikPack.sfx.exe
Filesize
573KB

MD5
77a913f94788fafc3bb9e6dd345cb3e2

SHA1
2a032a19f432a29717907d8e1fb3ee825d3bf3ff

SHA256
13a368a0959150310e8d0b3f6118e0d0930acf3e61057787cb9c81e6b88bd65d

SHA512
2aec5e05c7b5c3dab2fec683f662663e539e247628695df4d2ae43a16f8b79e80ed9b1fd944c03401e37be540196ef77767ee6dc66900306df352f1381eb93a8

Download Submit
memory/2476-25-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

Filesize
4KB

Download
memory/3576-23-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3576-24-0x00000000026D0000-0x00000000026D1000-memory.dmp

Filesize
4KB

Download
memory/3576-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads