darkcomet | e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5

Analysis

max time kernel
128s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 13:12

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General

Target

e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe
Size

764KB
MD5

46a672f6e852bd37395495f7a8d7f790
SHA1

70fe5eb7f66daef78e117b3d032fdc0b5605fed4
SHA256

e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5
SHA512

8d87c50f2090f66d4fff9fa5b52c01fa4f6ca74b4ecc644b24c6a520debcbb8d1f3e044ca96f66cdd70c6224d7d4dbbd3c9002b3a4665098d4f196d3ed426c0e
SSDEEP

12288:NNxpH49zf8v8VhfmbhIYvbO0C1m4JSqsj4LQ6eBWMAI++1p:NNH49L8ShMuh1/2j4LQ1B+a

Score

10^/10

darkcomet hacked evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

HACKED

njhostaddbots.no-ip.org:1604

Mutex

DC_MUTEX-5LR8UFZ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
JQrCNZocD9Jw
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

T1004

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"	cvtres.exe

Executes dropped EXE 1 IoCs

pid	Process
4840	msdcsc.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1158

pid	Process
1504	attrib.exe
3276	attrib.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	cvtres.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1412 set thread context of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84

Drops file in Windows directory 2 IoCs

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

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4188	cvtres.exe
Token: SeSecurityPrivilege	4188	cvtres.exe
Token: SeTakeOwnershipPrivilege	4188	cvtres.exe
Token: SeLoadDriverPrivilege	4188	cvtres.exe
Token: SeSystemProfilePrivilege	4188	cvtres.exe
Token: SeSystemtimePrivilege	4188	cvtres.exe
Token: SeProfSingleProcessPrivilege	4188	cvtres.exe
Token: SeIncBasePriorityPrivilege	4188	cvtres.exe
Token: SeCreatePagefilePrivilege	4188	cvtres.exe
Token: SeBackupPrivilege	4188	cvtres.exe
Token: SeRestorePrivilege	4188	cvtres.exe
Token: SeShutdownPrivilege	4188	cvtres.exe
Token: SeDebugPrivilege	4188	cvtres.exe
Token: SeSystemEnvironmentPrivilege	4188	cvtres.exe
Token: SeChangeNotifyPrivilege	4188	cvtres.exe
Token: SeRemoteShutdownPrivilege	4188	cvtres.exe
Token: SeUndockPrivilege	4188	cvtres.exe
Token: SeManageVolumePrivilege	4188	cvtres.exe
Token: SeImpersonatePrivilege	4188	cvtres.exe
Token: SeCreateGlobalPrivilege	4188	cvtres.exe
Token: 33	4188	cvtres.exe
Token: 34	4188	cvtres.exe
Token: 35	4188	cvtres.exe
Token: 36	4188	cvtres.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 1412 wrote to memory of 4188	1412	e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe	84
PID 4188 wrote to memory of 384	4188	cvtres.exe	85
PID 4188 wrote to memory of 384	4188	cvtres.exe	85
PID 4188 wrote to memory of 384	4188	cvtres.exe	85
PID 4188 wrote to memory of 4832	4188	cvtres.exe	86
PID 4188 wrote to memory of 4832	4188	cvtres.exe	86
PID 4188 wrote to memory of 4832	4188	cvtres.exe	86
PID 4188 wrote to memory of 4840	4188	cvtres.exe	89
PID 4188 wrote to memory of 4840	4188	cvtres.exe	89
PID 4188 wrote to memory of 4840	4188	cvtres.exe	89
PID 384 wrote to memory of 3276	384	cmd.exe	91
PID 384 wrote to memory of 3276	384	cmd.exe	91
PID 384 wrote to memory of 3276	384	cmd.exe	91
PID 4832 wrote to memory of 1504	4832	cmd.exe	92
PID 4832 wrote to memory of 1504	4832	cmd.exe	92
PID 4832 wrote to memory of 1504	4832	cmd.exe	92

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3276	attrib.exe
1504	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe
"C:\Users\Admin\AppData\Local\Temp\e9977b64d7e74740113223020df3526a75574fde5e1004e4937dd2799a290fd5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
  2⤵
  - Modifies WinLogon for persistence
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4188
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:384
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe" +s +h
      4⤵
      Sets file to hidden
      Drops file in Windows directory
      Views/modifies file attributes
      PID:3276
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4832
  - - 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
      Views/modifies file attributes
      PID:1504
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    PID:4840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

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

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
memory/1412-134-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download
memory/1412-137-0x00000000753F0000-0x00000000759A1000-memory.dmp

Filesize
5.7MB

Download
memory/4188-138-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4188-136-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4188-135-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4188-145-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4188-133-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads