darkcomet | 030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9

General

Target

030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Size

252KB
MD5

81d1f0ba69f70c3b8eb6c00dea432dfe
SHA1

f2e23705a6a465e8e6c7f02f3b175e2e06e84719
SHA256

030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9
SHA512

0fea7f04790a53638e2cc342f2d1713ba49363c31faa36bc5698f4f18be4b8d9f5006592b775d7c4bcf6f467f43fd005b80b5b6d5ad73aa3f0bfa344f0ad90ce

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ximer2020.ddns.net:1604

Mutex

DC_MUTEX-4U0HFC0

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
aDFqoxfKfrcR
install
true
offline_keylogger
true
password
82121020202222
persistence
true
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

Processes:

030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe

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"	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3124 msdcsc.exe

pid	process
3124	msdcsc.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
behavioral2/memory/4064-6-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4064-8-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4064-9-0x0000000000400000-0x00000000004B7000-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

Processes:

030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

3192 notepad.exe

pid	process
3192	notepad.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 3124 set thread context of 4064 3124 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 3124 set thread context of 4064	3124	msdcsc.exe	iexplore.exe

Modifies registry class 1 IoCs

Processes:

030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

4064 iexplore.exe

pid	process
4064	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeSecurityPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeTakeOwnershipPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeLoadDriverPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeSystemProfilePrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeSystemtimePrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeProfSingleProcessPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeIncBasePriorityPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeCreatePagefilePrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeBackupPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeRestorePrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeShutdownPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeDebugPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeSystemEnvironmentPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeChangeNotifyPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeRemoteShutdownPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeUndockPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeManageVolumePrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeImpersonatePrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeCreateGlobalPrivilege	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: 33	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: 34	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: 35	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: 36	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
Token: SeIncreaseQuotaPrivilege	3124	msdcsc.exe
Token: SeSecurityPrivilege	3124	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3124	msdcsc.exe
Token: SeLoadDriverPrivilege	3124	msdcsc.exe
Token: SeSystemProfilePrivilege	3124	msdcsc.exe
Token: SeSystemtimePrivilege	3124	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3124	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3124	msdcsc.exe
Token: SeCreatePagefilePrivilege	3124	msdcsc.exe
Token: SeBackupPrivilege	3124	msdcsc.exe
Token: SeRestorePrivilege	3124	msdcsc.exe
Token: SeShutdownPrivilege	3124	msdcsc.exe
Token: SeDebugPrivilege	3124	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3124	msdcsc.exe
Token: SeChangeNotifyPrivilege	3124	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3124	msdcsc.exe
Token: SeUndockPrivilege	3124	msdcsc.exe
Token: SeManageVolumePrivilege	3124	msdcsc.exe
Token: SeImpersonatePrivilege	3124	msdcsc.exe
Token: SeCreateGlobalPrivilege	3124	msdcsc.exe
Token: 33	3124	msdcsc.exe
Token: 34	3124	msdcsc.exe
Token: 35	3124	msdcsc.exe
Token: 36	3124	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	4064	iexplore.exe
Token: SeSecurityPrivilege	4064	iexplore.exe
Token: SeTakeOwnershipPrivilege	4064	iexplore.exe
Token: SeLoadDriverPrivilege	4064	iexplore.exe
Token: SeSystemProfilePrivilege	4064	iexplore.exe
Token: SeSystemtimePrivilege	4064	iexplore.exe
Token: SeProfSingleProcessPrivilege	4064	iexplore.exe
Token: SeIncBasePriorityPrivilege	4064	iexplore.exe
Token: SeCreatePagefilePrivilege	4064	iexplore.exe
Token: SeBackupPrivilege	4064	iexplore.exe
Token: SeRestorePrivilege	4064	iexplore.exe
Token: SeShutdownPrivilege	4064	iexplore.exe
Token: SeDebugPrivilege	4064	iexplore.exe
Token: SeSystemEnvironmentPrivilege	4064	iexplore.exe
Token: SeChangeNotifyPrivilege	4064	iexplore.exe
Token: SeRemoteShutdownPrivilege	4064	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

4064 iexplore.exe

pid	process
4064	iexplore.exe

Suspicious use of WriteProcessMemory 47 IoCs

Processes:

030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exemsdcsc.exeiexplore.exe

description	pid	process	target process
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3192	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	notepad.exe
PID 3412 wrote to memory of 3124	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	msdcsc.exe
PID 3412 wrote to memory of 3124	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	msdcsc.exe
PID 3412 wrote to memory of 3124	3412	030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe	msdcsc.exe
PID 3124 wrote to memory of 4064	3124	msdcsc.exe	iexplore.exe
PID 3124 wrote to memory of 4064	3124	msdcsc.exe	iexplore.exe
PID 3124 wrote to memory of 4064	3124	msdcsc.exe	iexplore.exe
PID 3124 wrote to memory of 4064	3124	msdcsc.exe	iexplore.exe
PID 3124 wrote to memory of 4064	3124	msdcsc.exe	iexplore.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe
PID 4064 wrote to memory of 196	4064	iexplore.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.exe
"C:\Users\Admin\AppData\Local\Temp\030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9.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:3412

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:3192

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3124

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4064

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:196

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
81d1f0ba69f70c3b8eb6c00dea432dfe

SHA1
f2e23705a6a465e8e6c7f02f3b175e2e06e84719

SHA256
030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9

SHA512
0fea7f04790a53638e2cc342f2d1713ba49363c31faa36bc5698f4f18be4b8d9f5006592b775d7c4bcf6f467f43fd005b80b5b6d5ad73aa3f0bfa344f0ad90ce

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
81d1f0ba69f70c3b8eb6c00dea432dfe

SHA1
f2e23705a6a465e8e6c7f02f3b175e2e06e84719

SHA256
030e0523148995ec2e91544642cacded035534ef6bf42c534336167fc96501f9

SHA512
0fea7f04790a53638e2cc342f2d1713ba49363c31faa36bc5698f4f18be4b8d9f5006592b775d7c4bcf6f467f43fd005b80b5b6d5ad73aa3f0bfa344f0ad90ce

Download Submit
memory/196-11-0x0000000003330000-0x0000000003331000-memory.dmp

Filesize
4KB

Download
memory/196-12-0x0000000000000000-mapping.dmp

Download
memory/196-10-0x0000000000000000-mapping.dmp

Download
memory/3124-3-0x0000000000000000-mapping.dmp

Download
memory/3192-2-0x0000000000000000-mapping.dmp

Download
memory/3192-1-0x00000000009D0000-0x00000000009D1000-memory.dmp

Filesize
4KB

Download
memory/3192-0-0x0000000000000000-mapping.dmp

Download
memory/4064-6-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4064-9-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4064-8-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4064-7-0x00000000004B5820-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads