darkcomet | 9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6

Analysis

max time kernel
152s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 23:32

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General

Target
9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6.exe
Size 991KB
Sample221003-3jb5fsccf7
SHA256 9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6
MD5 63e9ad903ec2cf825ed59b612fe17500
SHA1 fb86144ce0e7e08b9de0cdfa5301d1285c324a5d
SHA512 eddf3980a8a9731d1533c5126f182071c6f0670dc4c24a4461a2787094e4fc7839c4711adde17a93fbc0deb00db98248ea1f031ac9c53a33f6db9464b63b83f9
SSDEEP 24576:ZqpwLFgPdVmkwoqtJKSKnRskWjY9Lk5JMmX:ZqpxdVcoyKSKn2jyLk5S2
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet dota2 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Dota2

proborder1.ddns.net:1604

Mutex

DC_MUTEX-CYVMWW6

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
lSY40Zh8BYov
install
true
offline_keylogger
true
persistence
false
reg_key
svhost.exe

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\\Temp\\MSDCSC\\msdcsc.exe"	1.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Executes dropped EXE 4 IoCs

pid	Process
3296	N3G0Encrypted.exe
4224	N3G0Encrypted.EXE
1204	1.exe
4156	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
3812	attrib.exe
3064	attrib.exe

Checks computer location settings 2 TTPs 3 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	9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	N3G0Encrypted.EXE
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	1.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\svhost.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	1.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3296 set thread context of 4224	3296	N3G0Encrypted.exe	83

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\	1.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1204	1.exe
Token: SeSecurityPrivilege	1204	1.exe
Token: SeTakeOwnershipPrivilege	1204	1.exe
Token: SeLoadDriverPrivilege	1204	1.exe
Token: SeSystemProfilePrivilege	1204	1.exe
Token: SeSystemtimePrivilege	1204	1.exe
Token: SeProfSingleProcessPrivilege	1204	1.exe
Token: SeIncBasePriorityPrivilege	1204	1.exe
Token: SeCreatePagefilePrivilege	1204	1.exe
Token: SeBackupPrivilege	1204	1.exe
Token: SeRestorePrivilege	1204	1.exe
Token: SeShutdownPrivilege	1204	1.exe
Token: SeDebugPrivilege	1204	1.exe
Token: SeSystemEnvironmentPrivilege	1204	1.exe
Token: SeChangeNotifyPrivilege	1204	1.exe
Token: SeRemoteShutdownPrivilege	1204	1.exe
Token: SeUndockPrivilege	1204	1.exe
Token: SeManageVolumePrivilege	1204	1.exe
Token: SeImpersonatePrivilege	1204	1.exe
Token: SeCreateGlobalPrivilege	1204	1.exe
Token: 33	1204	1.exe
Token: 34	1204	1.exe
Token: 35	1204	1.exe
Token: 36	1204	1.exe
Token: SeIncreaseQuotaPrivilege	4156	msdcsc.exe
Token: SeSecurityPrivilege	4156	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4156	msdcsc.exe
Token: SeLoadDriverPrivilege	4156	msdcsc.exe
Token: SeSystemProfilePrivilege	4156	msdcsc.exe
Token: SeSystemtimePrivilege	4156	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4156	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4156	msdcsc.exe
Token: SeCreatePagefilePrivilege	4156	msdcsc.exe
Token: SeBackupPrivilege	4156	msdcsc.exe
Token: SeRestorePrivilege	4156	msdcsc.exe
Token: SeShutdownPrivilege	4156	msdcsc.exe
Token: SeDebugPrivilege	4156	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4156	msdcsc.exe
Token: SeChangeNotifyPrivilege	4156	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4156	msdcsc.exe
Token: SeUndockPrivilege	4156	msdcsc.exe
Token: SeManageVolumePrivilege	4156	msdcsc.exe
Token: SeImpersonatePrivilege	4156	msdcsc.exe
Token: SeCreateGlobalPrivilege	4156	msdcsc.exe
Token: 33	4156	msdcsc.exe
Token: 34	4156	msdcsc.exe
Token: 35	4156	msdcsc.exe
Token: 36	4156	msdcsc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3296	N3G0Encrypted.exe
4156	msdcsc.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 3296	4568	9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6.exe	82
PID 4568 wrote to memory of 3296	4568	9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6.exe	82
PID 4568 wrote to memory of 3296	4568	9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6.exe	82
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 3296 wrote to memory of 4224	3296	N3G0Encrypted.exe	83
PID 4224 wrote to memory of 1204	4224	N3G0Encrypted.EXE	85
PID 4224 wrote to memory of 1204	4224	N3G0Encrypted.EXE	85
PID 4224 wrote to memory of 1204	4224	N3G0Encrypted.EXE	85
PID 1204 wrote to memory of 456	1204	1.exe	87
PID 1204 wrote to memory of 456	1204	1.exe	87
PID 1204 wrote to memory of 456	1204	1.exe	87
PID 1204 wrote to memory of 1636	1204	1.exe	88
PID 1204 wrote to memory of 1636	1204	1.exe	88
PID 1204 wrote to memory of 1636	1204	1.exe	88
PID 1636 wrote to memory of 3812	1636	cmd.exe	92
PID 1636 wrote to memory of 3812	1636	cmd.exe	92
PID 1636 wrote to memory of 3812	1636	cmd.exe	92
PID 456 wrote to memory of 3064	456	cmd.exe	91
PID 456 wrote to memory of 3064	456	cmd.exe	91
PID 456 wrote to memory of 3064	456	cmd.exe	91
PID 1204 wrote to memory of 4156	1204	1.exe	93
PID 1204 wrote to memory of 4156	1204	1.exe	93
PID 1204 wrote to memory of 4156	1204	1.exe	93
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94
PID 4156 wrote to memory of 3424	4156	msdcsc.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3064	attrib.exe
3812	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6.exe
"C:\Users\Admin\AppData\Local\Temp\9831f2cac9abdd1cbbbf99c023622ee392cf18ce4f05f8f92847f12c089500f6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Users\Admin\AppData\Local\Temp\N3G0Encrypted.exe
  "C:\Users\Admin\AppData\Local\Temp\N3G0Encrypted.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3296
- - C:\Users\Admin\AppData\Local\Temp\N3G0Encrypted.EXE
    "C:\Users\Admin\AppData\Local\Temp\N3G0Encrypted.EXE"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4224
  - - C:\Users\Admin\AppData\Local\Temp\1.exe
      "C:\Users\Admin\AppData\Local\Temp\1.exe"
      4⤵
      Modifies WinLogon for persistence
      Executes dropped EXE
      Checks computer location settings
      Adds Run key to start application
      Modifies registry class
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1204
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\1.exe" +s +h
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:456
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Local\Temp\1.exe" +s +h
        6⤵
        Sets file to hidden
        Views/modifies file attributes
        
        PID:3064
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1636
      - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        6⤵
        Sets file to hidden
        Views/modifies file attributes
        
        PID:3812
    - - C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        
        "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
        5⤵
        Modifies firewall policy service
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4156
      - C:\Windows\SysWOW64\notepad.exe
        
        notepad
        6⤵
        
        PID:3424

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Modify Existing Service

T1031

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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1.exe

Path C:\Users\Admin\AppData\Local\Temp\1.exe
Size 658KB
SHA256 79c8628e91e649ad403ab40814507ca60fd9a5eaec02849429aaa827ed19a9ec
MD5 7142f26d2d821476c64293b87862d0de
SHA1 8445c3dd0a55fb7fee04c5fd0a9da2c4f0799b4c
SHA512 3ac892fa0d7db642d1eff22bd7005e710edaf9703fd4029c85ff90e0ef11479c8004e658fb6faa49ace6ac181338497b21a0079e97a0143059d17e1f44658df3
SSDEEP 12288:i9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyF4:OiBIGkbxqEcjsWiDxguehC2Sb
MD5 SHA1 SHA512 SSDEEP

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1.exe

Path C:\Users\Admin\AppData\Local\Temp\1.exe
Size 658KB
SHA256 79c8628e91e649ad403ab40814507ca60fd9a5eaec02849429aaa827ed19a9ec
MD5 7142f26d2d821476c64293b87862d0de
SHA1 8445c3dd0a55fb7fee04c5fd0a9da2c4f0799b4c
SHA512 3ac892fa0d7db642d1eff22bd7005e710edaf9703fd4029c85ff90e0ef11479c8004e658fb6faa49ace6ac181338497b21a0079e97a0143059d17e1f44658df3
SSDEEP 12288:i9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyF4:OiBIGkbxqEcjsWiDxguehC2Sb
MD5 SHA1 SHA512 SSDEEP

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msdcsc.exe

Path C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Size 658KB
SHA256 79c8628e91e649ad403ab40814507ca60fd9a5eaec02849429aaa827ed19a9ec
MD5 7142f26d2d821476c64293b87862d0de
SHA1 8445c3dd0a55fb7fee04c5fd0a9da2c4f0799b4c
SHA512 3ac892fa0d7db642d1eff22bd7005e710edaf9703fd4029c85ff90e0ef11479c8004e658fb6faa49ace6ac181338497b21a0079e97a0143059d17e1f44658df3
SSDEEP 12288:i9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyF4:OiBIGkbxqEcjsWiDxguehC2Sb
MD5 SHA1 SHA512 SSDEEP

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msdcsc.exe

Path C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Size 658KB
SHA256 79c8628e91e649ad403ab40814507ca60fd9a5eaec02849429aaa827ed19a9ec
MD5 7142f26d2d821476c64293b87862d0de
SHA1 8445c3dd0a55fb7fee04c5fd0a9da2c4f0799b4c
SHA512 3ac892fa0d7db642d1eff22bd7005e710edaf9703fd4029c85ff90e0ef11479c8004e658fb6faa49ace6ac181338497b21a0079e97a0143059d17e1f44658df3
SSDEEP 12288:i9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyF4:OiBIGkbxqEcjsWiDxguehC2Sb
MD5 SHA1 SHA512 SSDEEP

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N3G0Encrypted.exe

Path C:\Users\Admin\AppData\Local\Temp\N3G0Encrypted.exe
Size 846KB
SHA256 1b1f8a061931ac151ae12f71d512a66800bd6451984d5758bc3e85bf9d558171
MD5 1390d30c5ac442e7d459c1be08825351
SHA1 b1dcc35fdfa97d7be17c0c0ceb78ce097696d848
SHA512 1cf90acf5cd0a5a44eaeb523737cebd90fe10bc6867a069c8425d795b612569ea0998938daa5796e545ee219965c12cb863aa13fe6a04fdd0a2722c02b3bad40
SSDEEP 12288:YAnOQXi+ISPUEHJx6NXJ8PR9SKnZ51YusxmWogsNR8uaL52V7h0P80t51HM7CV:MkwoqtJKSKnRskWjY9Lk5JMmV
MD5 SHA1 SHA512 SSDEEP

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N3G0Encrypted.exe

Path C:\Users\Admin\AppData\Local\Temp\N3G0Encrypted.exe
Size 846KB
SHA256 1b1f8a061931ac151ae12f71d512a66800bd6451984d5758bc3e85bf9d558171
MD5 1390d30c5ac442e7d459c1be08825351
SHA1 b1dcc35fdfa97d7be17c0c0ceb78ce097696d848
SHA512 1cf90acf5cd0a5a44eaeb523737cebd90fe10bc6867a069c8425d795b612569ea0998938daa5796e545ee219965c12cb863aa13fe6a04fdd0a2722c02b3bad40
SSDEEP 12288:YAnOQXi+ISPUEHJx6NXJ8PR9SKnZ51YusxmWogsNR8uaL52V7h0P80t51HM7CV:MkwoqtJKSKnRskWjY9Lk5JMmV
MD5 SHA1 SHA512 SSDEEP

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N3G0Encrypted.exe

Path C:\Users\Admin\AppData\Local\Temp\N3G0Encrypted.exe
Size 846KB
SHA256 1b1f8a061931ac151ae12f71d512a66800bd6451984d5758bc3e85bf9d558171
MD5 1390d30c5ac442e7d459c1be08825351
SHA1 b1dcc35fdfa97d7be17c0c0ceb78ce097696d848
SHA512 1cf90acf5cd0a5a44eaeb523737cebd90fe10bc6867a069c8425d795b612569ea0998938daa5796e545ee219965c12cb863aa13fe6a04fdd0a2722c02b3bad40
SSDEEP 12288:YAnOQXi+ISPUEHJx6NXJ8PR9SKnZ51YusxmWogsNR8uaL52V7h0P80t51HM7CV:MkwoqtJKSKnRskWjY9Lk5JMmV
MD5 SHA1 SHA512 SSDEEP

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memory/4224-146-0x0000000000400000-0x00000000004D0000-memory.dmp

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memory/4224-142-0x0000000000400000-0x00000000004D0000-memory.dmp

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memory/4224-141-0x0000000000400000-0x00000000004D0000-memory.dmp

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memory/4224-140-0x0000000000400000-0x00000000004D0000-memory.dmp

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memory/4224-138-0x0000000000400000-0x00000000004D0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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