darkcomet | c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e

General

Target

c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe
Size

1.7MB
MD5

49d1338dd124baf0102b62040d11fbad
SHA1

e06d262b039ddbc61e89787b28224aa2bf64770b
SHA256

c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e
SHA512

4bd2740e630f013d53c63f13eb34083d4892c73aa78e72d36bd0273ba8134a6eebc8b9949aaa03685f199177053254b4271a2a0be662db1b5dd43259b5e19440
SSDEEP

24576:Ooad3G11e7FXE61jqAdc9DH/73df8XoxZlYscJsLn1D4L4oSnJRB:OoaRlXE6GtU4hYse+n1kcr

Score

10^/10

darkcomet main evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Main

C2

leinuo2rat.no-ip.biz:1604

Mutex

DC_MUTEX-ZPESHXD

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
KlPD5oRnmTw4
install
true
offline_keylogger
true
persistence
false
reg_key
Updata

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:

vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	vbc.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1324 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

Processes:

attrib.exeattrib.exe

pid process

872 attrib.exe
1344 attrib.exe
Loads dropped DLL 1 IoCs

Processes:

vbc.exe

pid process

268 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1324	msdcsc.exe

pid	process
872	attrib.exe
1344	attrib.exe

pid	process
268	vbc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exevbc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindosU = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WindosU.exe"	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Updata = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe

description pid process target process

PID 1752 set thread context of 268 1752 c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe vbc.exe

description	pid	process	target process
PID 1752 set thread context of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe

Drops file in Windows directory 2 IoCs

Processes:

attrib.exeattrib.exe

description	ioc	process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe	attrib.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727	attrib.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	268	vbc.exe
Token: SeSecurityPrivilege	268	vbc.exe
Token: SeTakeOwnershipPrivilege	268	vbc.exe
Token: SeLoadDriverPrivilege	268	vbc.exe
Token: SeSystemProfilePrivilege	268	vbc.exe
Token: SeSystemtimePrivilege	268	vbc.exe
Token: SeProfSingleProcessPrivilege	268	vbc.exe
Token: SeIncBasePriorityPrivilege	268	vbc.exe
Token: SeCreatePagefilePrivilege	268	vbc.exe
Token: SeBackupPrivilege	268	vbc.exe
Token: SeRestorePrivilege	268	vbc.exe
Token: SeShutdownPrivilege	268	vbc.exe
Token: SeDebugPrivilege	268	vbc.exe
Token: SeSystemEnvironmentPrivilege	268	vbc.exe
Token: SeChangeNotifyPrivilege	268	vbc.exe
Token: SeRemoteShutdownPrivilege	268	vbc.exe
Token: SeUndockPrivilege	268	vbc.exe
Token: SeManageVolumePrivilege	268	vbc.exe
Token: SeImpersonatePrivilege	268	vbc.exe
Token: SeCreateGlobalPrivilege	268	vbc.exe
Token: 33	268	vbc.exe
Token: 34	268	vbc.exe
Token: 35	268	vbc.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exevbc.execmd.execmd.exe

description	pid	process	target process
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 1752 wrote to memory of 268	1752	c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe	vbc.exe
PID 268 wrote to memory of 1816	268	vbc.exe	cmd.exe
PID 268 wrote to memory of 1816	268	vbc.exe	cmd.exe
PID 268 wrote to memory of 1816	268	vbc.exe	cmd.exe
PID 268 wrote to memory of 1816	268	vbc.exe	cmd.exe
PID 268 wrote to memory of 856	268	vbc.exe	cmd.exe
PID 268 wrote to memory of 856	268	vbc.exe	cmd.exe
PID 268 wrote to memory of 856	268	vbc.exe	cmd.exe
PID 268 wrote to memory of 856	268	vbc.exe	cmd.exe
PID 268 wrote to memory of 1324	268	vbc.exe	msdcsc.exe
PID 268 wrote to memory of 1324	268	vbc.exe	msdcsc.exe
PID 268 wrote to memory of 1324	268	vbc.exe	msdcsc.exe
PID 268 wrote to memory of 1324	268	vbc.exe	msdcsc.exe
PID 856 wrote to memory of 1344	856	cmd.exe	attrib.exe
PID 856 wrote to memory of 1344	856	cmd.exe	attrib.exe
PID 856 wrote to memory of 1344	856	cmd.exe	attrib.exe
PID 856 wrote to memory of 1344	856	cmd.exe	attrib.exe
PID 1816 wrote to memory of 872	1816	cmd.exe	attrib.exe
PID 1816 wrote to memory of 872	1816	cmd.exe	attrib.exe
PID 1816 wrote to memory of 872	1816	cmd.exe	attrib.exe
PID 1816 wrote to memory of 872	1816	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

872 attrib.exe
1344 attrib.exe

pid	process
872	attrib.exe
1344	attrib.exe

C:\Users\Admin\AppData\Local\Temp\c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe
"C:\Users\Admin\AppData\Local\Temp\c2eec1701284699343ae2acb7a659b19f9275ab1742d7f5da526a5ef37f15c2e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1752

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:1816

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
4⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:872

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:856

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
4⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:1344

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
"C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
PID:1324

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Hidden Files and Directories

2

T1158

Scripting

1

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/268-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-71-0x0000000000490888-mapping.dmp

Download
memory/268-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/268-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/856-77-0x0000000000000000-mapping.dmp

Download
memory/872-83-0x0000000000000000-mapping.dmp

Download
memory/1324-79-0x0000000000000000-mapping.dmp

Download
memory/1344-81-0x0000000000000000-mapping.dmp

Download
memory/1752-54-0x0000000075111000-0x0000000075113000-memory.dmp

Filesize
8KB

Download
memory/1752-55-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1752-85-0x0000000074170000-0x000000007471B000-memory.dmp

Filesize
5.7MB

Download
memory/1816-76-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads