darkcomet | 96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171

General

Target

96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Size

436KB
MD5

68921ea14e8cdfc8f8775263632802a0
SHA1

12b5d5437cf20e1eba91826bec9411b0c69098ff
SHA256

96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171
SHA512

8161a10dc45457c5050623e10d2169725607285b480e42c9bb5c15110289991bdb28ec9cad86e42f95d3db3a1d21dfdc08d525e9258f4183482cbf9fe130f61d
SSDEEP

12288:GcW7KEZlPzCy37oStLov/v6AYYYYYYYYYYYRYYYYYYYYYYL:KKiRzC0hsDYYYYYYYYYYYRYYYYYYYYYY

Score

10^/10

darkcomet guest16 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

cybergatenou4r.zapto.org:1604

Mutex

DC_MUTEX-Z78F0FY

Attributes

InstallPath
explorer\update.exe
gencode
iggsNm91khSs
install
true
offline_keylogger
true
persistence
true
reg_key
update

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\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\explorer\\update.exe"	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.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
4912	attrib.exe
3436	attrib.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1868-132-0x0000000000400000-0x0000000000513000-memory.dmp	upx
behavioral2/memory/1868-137-0x0000000000400000-0x0000000000513000-memory.dmp	upx

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\update = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\INetCookies\\explorer\\update.exe"	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.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\	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeSecurityPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeTakeOwnershipPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeLoadDriverPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeSystemProfilePrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeSystemtimePrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeProfSingleProcessPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeIncBasePriorityPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeCreatePagefilePrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeBackupPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeRestorePrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeShutdownPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeDebugPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeSystemEnvironmentPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeChangeNotifyPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeRemoteShutdownPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeUndockPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeManageVolumePrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeImpersonatePrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: SeCreateGlobalPrivilege	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: 33	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: 34	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: 35	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
Token: 36	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 5052	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe	81
PID 1868 wrote to memory of 5052	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe	81
PID 1868 wrote to memory of 5052	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe	81
PID 1868 wrote to memory of 4772	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe	83
PID 1868 wrote to memory of 4772	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe	83
PID 1868 wrote to memory of 4772	1868	96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe	83
PID 5052 wrote to memory of 4912	5052	cmd.exe	85
PID 5052 wrote to memory of 4912	5052	cmd.exe	85
PID 5052 wrote to memory of 4912	5052	cmd.exe	85
PID 4772 wrote to memory of 3436	4772	cmd.exe	86
PID 4772 wrote to memory of 3436	4772	cmd.exe	86
PID 4772 wrote to memory of 3436	4772	cmd.exe	86

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4912	attrib.exe
3436	attrib.exe

C:\Users\Admin\AppData\Local\Temp\96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe
"C:\Users\Admin\AppData\Local\Temp\96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.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:1868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\96fa2d60fb2e27d71fd21d7bebb2cdaf0f650ed3683ae829d6b17a19c1ec2171.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4912
- 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:4772
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:3436

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1868-132-0x0000000000400000-0x0000000000513000-memory.dmp

Filesize
1.1MB

Download
memory/1868-137-0x0000000000400000-0x0000000000513000-memory.dmp

Filesize
1.1MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads