darkcomet | a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453

General

Target

a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe
Size

578KB
MD5

2d13c3a38b55a070d9e61fccbbbd8993
SHA1

607f920a98692246daefcc5459383d054f095d71
SHA256

a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453
SHA512

8dd1de589cf104a5d572cb9d352617c105c061500b862301e583c624cb6740a883fbf07173f31bbcb2228b32b6a04610b53a24296d75b6444649b53661ec109d
SSDEEP

12288:kjzbCJ6ZP75FamPi2eNi8nKEaWMugN6WzzugmYj6weqcZRKLbUL:kjHU6pGy5etKEaWMP6WzWi4J

Score

10^/10

darkcomet guest16 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

thefinalblood1.no-ip.biz:1604

Mutex

DC_MUTEX-QY19XK4

Attributes

gencode
XlKMq2Lwge2E
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
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

2560 attrib.exe
2584 attrib.exe

pid	process
2560	attrib.exe
2584	attrib.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2104-133-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2104-134-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2104-136-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2104-138-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/2104-139-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe Acrobat = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\System\\Services\\Adobe Acrobat.exe"	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe Acrobat = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\System\\Services\\Adobe Acrobat.exe"	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe

description	pid	process	target process
PID 1520 set thread context of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.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 behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vbc.exe

pid process

2104 vbc.exe

pid	process
2104	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2104	vbc.exe
Token: SeSecurityPrivilege	2104	vbc.exe
Token: SeTakeOwnershipPrivilege	2104	vbc.exe
Token: SeLoadDriverPrivilege	2104	vbc.exe
Token: SeSystemProfilePrivilege	2104	vbc.exe
Token: SeSystemtimePrivilege	2104	vbc.exe
Token: SeProfSingleProcessPrivilege	2104	vbc.exe
Token: SeIncBasePriorityPrivilege	2104	vbc.exe
Token: SeCreatePagefilePrivilege	2104	vbc.exe
Token: SeBackupPrivilege	2104	vbc.exe
Token: SeRestorePrivilege	2104	vbc.exe
Token: SeShutdownPrivilege	2104	vbc.exe
Token: SeDebugPrivilege	2104	vbc.exe
Token: SeSystemEnvironmentPrivilege	2104	vbc.exe
Token: SeChangeNotifyPrivilege	2104	vbc.exe
Token: SeRemoteShutdownPrivilege	2104	vbc.exe
Token: SeUndockPrivilege	2104	vbc.exe
Token: SeManageVolumePrivilege	2104	vbc.exe
Token: SeImpersonatePrivilege	2104	vbc.exe
Token: SeCreateGlobalPrivilege	2104	vbc.exe
Token: 33	2104	vbc.exe
Token: 34	2104	vbc.exe
Token: 35	2104	vbc.exe
Token: 36	2104	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid process

2104 vbc.exe

pid	process
2104	vbc.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exevbc.execmd.execmd.exe

description	pid	process	target process
PID 1520 wrote to memory of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe	vbc.exe
PID 1520 wrote to memory of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe	vbc.exe
PID 1520 wrote to memory of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe	vbc.exe
PID 1520 wrote to memory of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe	vbc.exe
PID 1520 wrote to memory of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe	vbc.exe
PID 1520 wrote to memory of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe	vbc.exe
PID 1520 wrote to memory of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe	vbc.exe
PID 1520 wrote to memory of 2104	1520	a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe	vbc.exe
PID 2104 wrote to memory of 3880	2104	vbc.exe	cmd.exe
PID 2104 wrote to memory of 3880	2104	vbc.exe	cmd.exe
PID 2104 wrote to memory of 3880	2104	vbc.exe	cmd.exe
PID 2104 wrote to memory of 3604	2104	vbc.exe	cmd.exe
PID 2104 wrote to memory of 3604	2104	vbc.exe	cmd.exe
PID 2104 wrote to memory of 3604	2104	vbc.exe	cmd.exe
PID 3880 wrote to memory of 2584	3880	cmd.exe	attrib.exe
PID 3880 wrote to memory of 2584	3880	cmd.exe	attrib.exe
PID 3880 wrote to memory of 2584	3880	cmd.exe	attrib.exe
PID 3604 wrote to memory of 2560	3604	cmd.exe	attrib.exe
PID 3604 wrote to memory of 2560	3604	cmd.exe	attrib.exe
PID 3604 wrote to memory of 2560	3604	cmd.exe	attrib.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe
PID 2104 wrote to memory of 3272	2104	vbc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

2560 attrib.exe
2584 attrib.exe

pid	process
2560	attrib.exe
2584	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe
"C:\Users\Admin\AppData\Local\Temp\a029c91d07df53bb4e724184ad01a764363e7d0195890683ae4191ca19481453.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1520

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
2⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2104

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:3880

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:2584

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:3604

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:2560

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3272

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

2

T1158

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1520-135-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/1520-137-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/2104-138-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2104-134-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2104-133-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2104-136-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2104-132-0x0000000000000000-mapping.dmp

Download
memory/2104-139-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2560-143-0x0000000000000000-mapping.dmp

Download
memory/2584-142-0x0000000000000000-mapping.dmp

Download
memory/3272-144-0x0000000000000000-mapping.dmp

Download
memory/3604-141-0x0000000000000000-mapping.dmp

Download
memory/3880-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads