darkcomet | 81284899547f83a0cffffe572256bfdbc79a9b4af3b0161497cbc332de0fa7a8

Analysis

max time kernel
208s
max time network
215s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
06-01-2024 12:07

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General

Target

4630b182e94a96790b1d060d0efb9452.exe
Size

349KB
MD5

4630b182e94a96790b1d060d0efb9452
SHA1

466322d5d2479f71a5be9af67cf2e3e013848557
SHA256

81284899547f83a0cffffe572256bfdbc79a9b4af3b0161497cbc332de0fa7a8
SHA512

79c623addbb1132bae9ad22777811ffd149cc169e200e08fade1f347da2b0ac201e18166149df28f2687d6f37c548f7711630d74edbb42f1abdccb7ef4500f41
SSDEEP

6144:tcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37QnBLLjMdWnpQZh9h4:tcW7KEZlPzCy37ElMd0QZh9u

Score

10^/10

darkcomet noob evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Noob

h4rdc0r3.dyndns.biz:1337

Mutex

DC_MUTEX-92DN9LG

Attributes

InstallPath
MSDCSC\svchost
gencode
1WWyd7tFWhkc
install
true
offline_keylogger
true
persistence
true
reg_key
svchost

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\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\svchost"	4630b182e94a96790b1d060d0efb9452.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

pid	Process
860	attrib.exe
4304	attrib.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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	4630b182e94a96790b1d060d0efb9452.exe

Deletes itself 1 IoCs

pid	Process
3732	notepad.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1792-0-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1792-1-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1792-4-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1792-7-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/files/0x0003000000022721-12.dat	upx
behavioral2/memory/1792-35-0x0000000000400000-0x00000000004E8000-memory.dmp	upx

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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\MSDCSC\\svchost"	4630b182e94a96790b1d060d0efb9452.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeSecurityPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeTakeOwnershipPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeLoadDriverPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeSystemProfilePrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeSystemtimePrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeProfSingleProcessPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeIncBasePriorityPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeCreatePagefilePrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeBackupPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeRestorePrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeShutdownPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeDebugPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeSystemEnvironmentPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeChangeNotifyPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeRemoteShutdownPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeUndockPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeManageVolumePrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeImpersonatePrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: SeCreateGlobalPrivilege	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: 33	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: 34	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: 35	1792	4630b182e94a96790b1d060d0efb9452.exe
Token: 36	1792	4630b182e94a96790b1d060d0efb9452.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 3664	1792	4630b182e94a96790b1d060d0efb9452.exe	95
PID 1792 wrote to memory of 3664	1792	4630b182e94a96790b1d060d0efb9452.exe	95
PID 1792 wrote to memory of 3664	1792	4630b182e94a96790b1d060d0efb9452.exe	95
PID 1792 wrote to memory of 3212	1792	4630b182e94a96790b1d060d0efb9452.exe	96
PID 1792 wrote to memory of 3212	1792	4630b182e94a96790b1d060d0efb9452.exe	96
PID 1792 wrote to memory of 3212	1792	4630b182e94a96790b1d060d0efb9452.exe	96
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 1792 wrote to memory of 3732	1792	4630b182e94a96790b1d060d0efb9452.exe	99
PID 3212 wrote to memory of 4304	3212	cmd.exe	101
PID 3212 wrote to memory of 4304	3212	cmd.exe	101
PID 3212 wrote to memory of 4304	3212	cmd.exe	101
PID 3664 wrote to memory of 860	3664	cmd.exe	102
PID 3664 wrote to memory of 860	3664	cmd.exe	102
PID 3664 wrote to memory of 860	3664	cmd.exe	102

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4304	attrib.exe
860	attrib.exe

C:\Users\Admin\AppData\Local\Temp\4630b182e94a96790b1d060d0efb9452.exe
"C:\Users\Admin\AppData\Local\Temp\4630b182e94a96790b1d060d0efb9452.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4630b182e94a96790b1d060d0efb9452.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3664
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\4630b182e94a96790b1d060d0efb9452.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3212
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4304
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:3732

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\MSDCSC\svchost

Filesize
349KB

MD5
4630b182e94a96790b1d060d0efb9452

SHA1
466322d5d2479f71a5be9af67cf2e3e013848557

SHA256
81284899547f83a0cffffe572256bfdbc79a9b4af3b0161497cbc332de0fa7a8

SHA512
79c623addbb1132bae9ad22777811ffd149cc169e200e08fade1f347da2b0ac201e18166149df28f2687d6f37c548f7711630d74edbb42f1abdccb7ef4500f41

Download Submit
memory/1792-0-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1792-1-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1792-3-0x0000000000B50000-0x0000000000B51000-memory.dmp

Filesize
4KB

Download
memory/1792-4-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1792-7-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1792-35-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/3732-10-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads