darkcomet | a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

Analysis

max time kernel
140s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
31/10/2023, 08:39

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General

Target

NEAS.bc64e423e73460f223693097d456d920.exe
Size

658KB
MD5

bc64e423e73460f223693097d456d920
SHA1

966579a9b8981e9316738b60a7dace44ab055179
SHA256

a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99
SHA512

24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9
SSDEEP

12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hO:eZ1xuVVjfFoynPaVBUR8f+kN10EBQ

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

slexqq.duckdns.org:1604

Mutex

DC_MUTEX-TH3JT6M

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
jorWB3wvZUMQ
install
true
offline_keylogger
true
persistence
false
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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	NEAS.bc64e423e73460f223693097d456d920.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\Control Panel\International\Geo\Nation	NEAS.bc64e423e73460f223693097d456d920.exe

Executes dropped EXE 1 IoCs

pid	Process
3084	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3811856890-180006922-3689258494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	NEAS.bc64e423e73460f223693097d456d920.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3084 set thread context of 4452	3084	msdcsc.exe	94

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	NEAS.bc64e423e73460f223693097d456d920.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeSecurityPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeTakeOwnershipPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeLoadDriverPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeSystemProfilePrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeSystemtimePrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeProfSingleProcessPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeIncBasePriorityPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeCreatePagefilePrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeBackupPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeRestorePrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeShutdownPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeDebugPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeSystemEnvironmentPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeChangeNotifyPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeRemoteShutdownPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeUndockPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeManageVolumePrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeImpersonatePrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeCreateGlobalPrivilege	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: 33	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: 34	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: 35	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: 36	260	NEAS.bc64e423e73460f223693097d456d920.exe
Token: SeIncreaseQuotaPrivilege	3084	msdcsc.exe
Token: SeSecurityPrivilege	3084	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3084	msdcsc.exe
Token: SeLoadDriverPrivilege	3084	msdcsc.exe
Token: SeSystemProfilePrivilege	3084	msdcsc.exe
Token: SeSystemtimePrivilege	3084	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3084	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3084	msdcsc.exe
Token: SeCreatePagefilePrivilege	3084	msdcsc.exe
Token: SeBackupPrivilege	3084	msdcsc.exe
Token: SeRestorePrivilege	3084	msdcsc.exe
Token: SeShutdownPrivilege	3084	msdcsc.exe
Token: SeDebugPrivilege	3084	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3084	msdcsc.exe
Token: SeChangeNotifyPrivilege	3084	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3084	msdcsc.exe
Token: SeUndockPrivilege	3084	msdcsc.exe
Token: SeManageVolumePrivilege	3084	msdcsc.exe
Token: SeImpersonatePrivilege	3084	msdcsc.exe
Token: SeCreateGlobalPrivilege	3084	msdcsc.exe
Token: 33	3084	msdcsc.exe
Token: 34	3084	msdcsc.exe
Token: 35	3084	msdcsc.exe
Token: 36	3084	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	4452	iexplore.exe
Token: SeSecurityPrivilege	4452	iexplore.exe
Token: SeTakeOwnershipPrivilege	4452	iexplore.exe
Token: SeLoadDriverPrivilege	4452	iexplore.exe
Token: SeSystemProfilePrivilege	4452	iexplore.exe
Token: SeSystemtimePrivilege	4452	iexplore.exe
Token: SeProfSingleProcessPrivilege	4452	iexplore.exe
Token: SeIncBasePriorityPrivilege	4452	iexplore.exe
Token: SeCreatePagefilePrivilege	4452	iexplore.exe
Token: SeBackupPrivilege	4452	iexplore.exe
Token: SeRestorePrivilege	4452	iexplore.exe
Token: SeShutdownPrivilege	4452	iexplore.exe
Token: SeDebugPrivilege	4452	iexplore.exe
Token: SeSystemEnvironmentPrivilege	4452	iexplore.exe
Token: SeChangeNotifyPrivilege	4452	iexplore.exe
Token: SeRemoteShutdownPrivilege	4452	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4452	iexplore.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 260 wrote to memory of 3084	260	NEAS.bc64e423e73460f223693097d456d920.exe	93
PID 260 wrote to memory of 3084	260	NEAS.bc64e423e73460f223693097d456d920.exe	93
PID 260 wrote to memory of 3084	260	NEAS.bc64e423e73460f223693097d456d920.exe	93
PID 3084 wrote to memory of 4452	3084	msdcsc.exe	94
PID 3084 wrote to memory of 4452	3084	msdcsc.exe	94
PID 3084 wrote to memory of 4452	3084	msdcsc.exe	94
PID 3084 wrote to memory of 4452	3084	msdcsc.exe	94
PID 3084 wrote to memory of 4452	3084	msdcsc.exe	94

C:\Users\Admin\AppData\Local\Temp\NEAS.bc64e423e73460f223693097d456d920.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.bc64e423e73460f223693097d456d920.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:260
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3084
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4452

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
bc64e423e73460f223693097d456d920

SHA1
966579a9b8981e9316738b60a7dace44ab055179

SHA256
a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

SHA512
24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
bc64e423e73460f223693097d456d920

SHA1
966579a9b8981e9316738b60a7dace44ab055179

SHA256
a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

SHA512
24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
bc64e423e73460f223693097d456d920

SHA1
966579a9b8981e9316738b60a7dace44ab055179

SHA256
a60e516a11b7f8d030cd393e2ea4e6d4b25fc0cf7b5bdf1a4353eaae28c81e99

SHA512
24ca0b49f1c5b476651dd8fd865aef40acaafa7410e1e51cc98477d2e3f25154cc827af3b5228bd8f04abe64591675afc36a116d084794b01ae047f04f9c07c9

Download Submit
memory/260-0-0x00000000024F0000-0x00000000024F1000-memory.dmp

Filesize
4KB

Download
memory/260-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3084-61-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/3084-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4452-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads