darkcomet | 707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02

Analysis

max time kernel
188s
max time network
193s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 16:02

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General

Target

707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Size

661KB
MD5

081479fd083ec172e9a7c23caba03bb1
SHA1

e7cb1abdef3384ca5ac1a31c2c791a84304926e9
SHA256

707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02
SHA512

261cab6c1c3cdba1783b89a15c3b4c6e3e7bee8a4b129c9c9abf511d35f7f4658fea67a561ce775498a7a9df4311357670119ba67acc1f210830baf8c147a900
SSDEEP

12288:MXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452UR:anAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jh

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

shizzlekid.zapto.org:1919

Mutex

DC_MUTEX-NE6UK92

Attributes

InstallPath
MSDCSC\microsoft.exe
gencode
YcKFVzKEhbEr
install
true
offline_keylogger
true
persistence
false
reg_key
Microsoft

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\\microsoft.exe"	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe

Executes dropped EXE 1 IoCs

pid	Process
1484	microsoft.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1158

pid	Process
4852	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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Users\\Admin\\Documents\\MSDCSC\\microsoft.exe"	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe

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

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\	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1484	microsoft.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeSecurityPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeTakeOwnershipPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeLoadDriverPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeSystemProfilePrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeSystemtimePrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeProfSingleProcessPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeIncBasePriorityPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeCreatePagefilePrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeBackupPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeRestorePrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeShutdownPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeDebugPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeSystemEnvironmentPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeChangeNotifyPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeRemoteShutdownPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeUndockPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeManageVolumePrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeImpersonatePrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeCreateGlobalPrivilege	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: 33	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: 34	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: 35	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: 36	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
Token: SeIncreaseQuotaPrivilege	1484	microsoft.exe
Token: SeSecurityPrivilege	1484	microsoft.exe
Token: SeTakeOwnershipPrivilege	1484	microsoft.exe
Token: SeLoadDriverPrivilege	1484	microsoft.exe
Token: SeSystemProfilePrivilege	1484	microsoft.exe
Token: SeSystemtimePrivilege	1484	microsoft.exe
Token: SeProfSingleProcessPrivilege	1484	microsoft.exe
Token: SeIncBasePriorityPrivilege	1484	microsoft.exe
Token: SeCreatePagefilePrivilege	1484	microsoft.exe
Token: SeBackupPrivilege	1484	microsoft.exe
Token: SeRestorePrivilege	1484	microsoft.exe
Token: SeShutdownPrivilege	1484	microsoft.exe
Token: SeDebugPrivilege	1484	microsoft.exe
Token: SeSystemEnvironmentPrivilege	1484	microsoft.exe
Token: SeChangeNotifyPrivilege	1484	microsoft.exe
Token: SeRemoteShutdownPrivilege	1484	microsoft.exe
Token: SeUndockPrivilege	1484	microsoft.exe
Token: SeManageVolumePrivilege	1484	microsoft.exe
Token: SeImpersonatePrivilege	1484	microsoft.exe
Token: SeCreateGlobalPrivilege	1484	microsoft.exe
Token: 33	1484	microsoft.exe
Token: 34	1484	microsoft.exe
Token: 35	1484	microsoft.exe
Token: 36	1484	microsoft.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1484	microsoft.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 5016	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe	79
PID 2764 wrote to memory of 5016	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe	79
PID 2764 wrote to memory of 5016	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe	79
PID 5016 wrote to memory of 4852	5016	cmd.exe	81
PID 5016 wrote to memory of 4852	5016	cmd.exe	81
PID 5016 wrote to memory of 4852	5016	cmd.exe	81
PID 2764 wrote to memory of 1484	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe	82
PID 2764 wrote to memory of 1484	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe	82
PID 2764 wrote to memory of 1484	2764	707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe	82
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83
PID 1484 wrote to memory of 1416	1484	microsoft.exe	83

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4852	attrib.exe

C:\Users\Admin\AppData\Local\Temp\707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe
"C:\Users\Admin\AppData\Local\Temp\707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.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:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5016
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4852
- C:\Users\Admin\Documents\MSDCSC\microsoft.exe
  "C:\Users\Admin\Documents\MSDCSC\microsoft.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1484
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:1416

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

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\microsoft.exe

Filesize
661KB

MD5
081479fd083ec172e9a7c23caba03bb1

SHA1
e7cb1abdef3384ca5ac1a31c2c791a84304926e9

SHA256
707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02

SHA512
261cab6c1c3cdba1783b89a15c3b4c6e3e7bee8a4b129c9c9abf511d35f7f4658fea67a561ce775498a7a9df4311357670119ba67acc1f210830baf8c147a900

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

Filesize
661KB

MD5
081479fd083ec172e9a7c23caba03bb1

SHA1
e7cb1abdef3384ca5ac1a31c2c791a84304926e9

SHA256
707cae5691796c3ebdd8940831948d0e49965e33e4f0384edba8e1969158bd02

SHA512
261cab6c1c3cdba1783b89a15c3b4c6e3e7bee8a4b129c9c9abf511d35f7f4658fea67a561ce775498a7a9df4311357670119ba67acc1f210830baf8c147a900

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads