darkcomet | 2b6a3303f789dcb6019801babcbde32bac1a1154391f61f8127e3b9f03d6e8de

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
06-05-2024 23:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe
Size

847KB
MD5

32714e6ba316bf34e90dbf6d5e81f260
SHA1

34ae7f07b4d179323854f9b3d624d03e35889da9
SHA256

2b6a3303f789dcb6019801babcbde32bac1a1154391f61f8127e3b9f03d6e8de
SHA512

46302f16a2b491808b579b4596e52bc8ff6fe972f4054483cc622357bb727394e7ab65191091eeef97fedcbcd39f388511c5757399d8674221c3ba6ab6958d5a
SSDEEP

24576:SV9RUqJJeOY9J3/Ekbl4055FWim0HvYq/5lrzG:eUqJsOWJ3/EIlhtzYqxZzG

Score

10^/10

darkcomet fud persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

FUD

ainab-inc.no-ip.biz:1604

ainab-inc.no-ip.biz:1605

ainab.no-ip.info:1605

ainab.no-ip.info:1604

Mutex

DC_MUTEX-8PSGHJX

Attributes

InstallPath
C:\Program Files\CCleaner\CCleaner-resident.exe
gencode
xhpExvTjwd0Y
install
true
offline_keylogger
true
persistence
true
reg_key
explore

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

T1547.004

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:\\Users\\Admin\\AppData\\Local\\Temp\\C:\\Program Files\\CCleaner\\xhpExvTjwd0Y\\CCleaner-resident.exe"	vbc.exe

Executes dropped EXE 2 IoCs

Processes:

SKYPE_CHECKER.EXESKYPE_CHECKER.EXE

pid	Process
1420	SKYPE_CHECKER.EXE
2100	SKYPE_CHECKER.EXE

UPX packed file 25 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4388-7-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-10-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-9-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-12-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-13-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-26-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-30-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-29-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-31-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-34-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-35-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-36-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-39-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-40-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-43-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-46-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-49-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-52-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-55-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-58-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-61-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-64-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-67-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-70-0x0000000000400000-0x000000000053B000-memory.dmp	upx
behavioral2/memory/4388-73-0x0000000000400000-0x000000000053B000-memory.dmp	upx

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

32714e6ba316bf34e90dbf6d5e81f260_NEAS.exevbc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Skype-Checker = "C:\\Users\\Admin\\AppData\\Roaming\\Skype Checker.exe"	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explore = "C:\\Users\\Admin\\AppData\\Local\\Temp\\C:\\Program Files\\CCleaner\\xhpExvTjwd0Y\\CCleaner-resident.exe"	vbc.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe
File created	C:\Windows\assembly\Desktop.ini	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe

description	pid	Process	procid_target
PID 216 set thread context of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84

Drops file in Windows directory 3 IoCs

Processes:

32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe

description	ioc	Process
File opened for modification	C:\Windows\assembly	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe
File created	C:\Windows\assembly\Desktop.ini	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe

NTFS ADS 4 IoCs

Processes:

vbc.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\C:\Program Files\CCleaner\CCleaner-resident.exe	vbc.exe
File created	C:\Users\Admin\AppData\Local\Temp\C:\Program Files\CCleaner\xhpExvTjwd0Y\CCleaner-resident.exe	vbc.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\C:\Program Files\CCleaner\xhpExvTjwd0Y\CCleaner-resident.exe	vbc.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\C:\Program Files\CCleaner\xhpExvTjwd0Y\	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

vbc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4388	vbc.exe
Token: SeSecurityPrivilege	4388	vbc.exe
Token: SeTakeOwnershipPrivilege	4388	vbc.exe
Token: SeLoadDriverPrivilege	4388	vbc.exe
Token: SeSystemProfilePrivilege	4388	vbc.exe
Token: SeSystemtimePrivilege	4388	vbc.exe
Token: SeProfSingleProcessPrivilege	4388	vbc.exe
Token: SeIncBasePriorityPrivilege	4388	vbc.exe
Token: SeCreatePagefilePrivilege	4388	vbc.exe
Token: SeBackupPrivilege	4388	vbc.exe
Token: SeRestorePrivilege	4388	vbc.exe
Token: SeShutdownPrivilege	4388	vbc.exe
Token: SeDebugPrivilege	4388	vbc.exe
Token: SeSystemEnvironmentPrivilege	4388	vbc.exe
Token: SeChangeNotifyPrivilege	4388	vbc.exe
Token: SeRemoteShutdownPrivilege	4388	vbc.exe
Token: SeUndockPrivilege	4388	vbc.exe
Token: SeManageVolumePrivilege	4388	vbc.exe
Token: SeImpersonatePrivilege	4388	vbc.exe
Token: SeCreateGlobalPrivilege	4388	vbc.exe
Token: 33	4388	vbc.exe
Token: 34	4388	vbc.exe
Token: 35	4388	vbc.exe
Token: 36	4388	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid	Process
4388	vbc.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

32714e6ba316bf34e90dbf6d5e81f260_NEAS.exevbc.exe

description	pid	Process	procid_target
PID 216 wrote to memory of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84
PID 216 wrote to memory of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84
PID 216 wrote to memory of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84
PID 216 wrote to memory of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84
PID 216 wrote to memory of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84
PID 216 wrote to memory of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84
PID 216 wrote to memory of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84
PID 216 wrote to memory of 4388	216	32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe	84
PID 4388 wrote to memory of 1420	4388	vbc.exe	86
PID 4388 wrote to memory of 1420	4388	vbc.exe	86
PID 4388 wrote to memory of 1420	4388	vbc.exe	86
PID 4388 wrote to memory of 2100	4388	vbc.exe	89
PID 4388 wrote to memory of 2100	4388	vbc.exe	89
PID 4388 wrote to memory of 2100	4388	vbc.exe	89
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90
PID 4388 wrote to memory of 3916	4388	vbc.exe	90

C:\Users\Admin\AppData\Local\Temp\32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\32714e6ba316bf34e90dbf6d5e81f260_NEAS.exe"
1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:216
- 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
  - Adds Run key to start application
  - NTFS ADS
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4388
- - C:\Users\Admin\AppData\Local\Temp\SKYPE_CHECKER.EXE
    "C:\Users\Admin\AppData\Local\Temp\SKYPE_CHECKER.EXE"
    3⤵
    - Executes dropped EXE
    PID:1420
- - C:\Users\Admin\AppData\Local\Temp\SKYPE_CHECKER.EXE
    "C:\Users\Admin\AppData\Local\Temp\SKYPE_CHECKER.EXE"
    3⤵
    - Executes dropped EXE
    PID:2100
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:3916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\SKYPE_CHECKER.EXE

Filesize
521KB

MD5
c30a1984c00d53d6f58ceacffc7f609f

SHA1
e38910a83a7bbefebc7f87d6f1d8e8bfe2c77308

SHA256
df15bb116b47979eeafa960df367f7de3dfba79d3d60704703bfbd9c2c52d2ab

SHA512
d0ed5698fc627ef2481bb7c8efa0a72e22627184466d7ff4ed3d22119c0c8d92ac2d8aa8ffe4f29f0259aa658373e1d643f9a1e26969e8f3fb668c15d47bca0d

Download Submit
memory/216-1-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/216-2-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/216-11-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/216-0-0x0000000074BB2000-0x0000000074BB3000-memory.dmp

Filesize
4KB

Download
memory/1420-25-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/1420-37-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/1420-32-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/2100-33-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/3916-28-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/4388-13-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-40-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-30-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-29-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-12-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-31-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-9-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-10-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-34-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-35-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-7-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-36-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-39-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-26-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-43-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-46-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-49-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-52-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-55-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-58-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-61-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-64-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-67-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-70-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/4388-73-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download