darkcomet | 5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-10-2024 21:14

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General

Target

5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Size

283KB
MD5

0137cad2f4aa8106ca20f59b4f3d99c7
SHA1

3c592c1b2f39d37ad68250f264887865be576f46
SHA256

5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578
SHA512

d019103f20906b4641cafb1323ac880d144826754049d7cb7c84647e77cddea743520e431f9dfdc050711d9e8dd2d9ff5baa855cda8ee597b99a2d8fbb2d41df
SSDEEP

6144:DcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37G:DcW7KEZlPzCy37G

Score

10^/10

darkcomet arabeff discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

ARABEFF

foru.no-ip.info:1604

foru.no-ip.info:5555

foru.no-ip.info:2000

foru1.no-ip.info:2000

foru1.no-ip.info:5555

foru1.no-ip.info:1604

desgarrada.no-ip.org:1604

desgarrada1.no-ip.org:1604

Mutex

Svchost

Attributes

InstallPath
Windows\windows.exe
gencode
2uVzLNvVHcYl
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\Windows\\windows.exe"	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

windows.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	windows.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid	Process
796	notepad.exe

Executes dropped EXE 1 IoCs

Processes:

windows.exe

pid	Process
2844	windows.exe

Loads dropped DLL 2 IoCs

Processes:

5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

pid	Process
2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

windows.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	windows.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

windows.exe5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\Windows\\windows.exe"	windows.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\Windows\\windows.exe"	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

Drops file in System32 directory 3 IoCs

Processes:

5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\Windows\windows.exe	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
File opened for modification	C:\Windows\SysWOW64\Windows\windows.exe	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
File opened for modification	C:\Windows\SysWOW64\Windows\	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

UPX packed file 11 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2084-0-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/files/0x0008000000015d19-24.dat	upx
behavioral1/memory/2844-31-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2084-59-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2844-61-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2844-63-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2844-65-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2844-67-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2844-70-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2844-73-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2844-75-0x0000000000400000-0x00000000004C7000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

notepad.exewindows.exenotepad.exe5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windows.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exewindows.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeSecurityPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeTakeOwnershipPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeLoadDriverPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeSystemProfilePrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeSystemtimePrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeProfSingleProcessPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeIncBasePriorityPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeCreatePagefilePrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeBackupPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeRestorePrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeShutdownPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeDebugPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeSystemEnvironmentPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeChangeNotifyPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeRemoteShutdownPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeUndockPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeManageVolumePrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeImpersonatePrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeCreateGlobalPrivilege	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: 33	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: 34	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: 35	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
Token: SeIncreaseQuotaPrivilege	2844	windows.exe
Token: SeSecurityPrivilege	2844	windows.exe
Token: SeTakeOwnershipPrivilege	2844	windows.exe
Token: SeLoadDriverPrivilege	2844	windows.exe
Token: SeSystemProfilePrivilege	2844	windows.exe
Token: SeSystemtimePrivilege	2844	windows.exe
Token: SeProfSingleProcessPrivilege	2844	windows.exe
Token: SeIncBasePriorityPrivilege	2844	windows.exe
Token: SeCreatePagefilePrivilege	2844	windows.exe
Token: SeBackupPrivilege	2844	windows.exe
Token: SeRestorePrivilege	2844	windows.exe
Token: SeShutdownPrivilege	2844	windows.exe
Token: SeDebugPrivilege	2844	windows.exe
Token: SeSystemEnvironmentPrivilege	2844	windows.exe
Token: SeChangeNotifyPrivilege	2844	windows.exe
Token: SeRemoteShutdownPrivilege	2844	windows.exe
Token: SeUndockPrivilege	2844	windows.exe
Token: SeManageVolumePrivilege	2844	windows.exe
Token: SeImpersonatePrivilege	2844	windows.exe
Token: SeCreateGlobalPrivilege	2844	windows.exe
Token: 33	2844	windows.exe
Token: 34	2844	windows.exe
Token: 35	2844	windows.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

windows.exe

pid	Process
2844	windows.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exewindows.exe

description	pid	Process	procid_target
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 796	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	31
PID 2084 wrote to memory of 2844	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	32
PID 2084 wrote to memory of 2844	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	32
PID 2084 wrote to memory of 2844	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	32
PID 2084 wrote to memory of 2844	2084	5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe	32
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33
PID 2844 wrote to memory of 2728	2844	windows.exe	33

C:\Users\Admin\AppData\Local\Temp\5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe
"C:\Users\Admin\AppData\Local\Temp\5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:796
- C:\Windows\SysWOW64\Windows\windows.exe
  "C:\Windows\system32\Windows\windows.exe"
  2⤵
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\Windows\windows.exe

Filesize
283KB

MD5
0137cad2f4aa8106ca20f59b4f3d99c7

SHA1
3c592c1b2f39d37ad68250f264887865be576f46

SHA256
5c238bef33a4fb8662513b830dd9de975c9d13f23b8efdbb3532c682bf180578

SHA512
d019103f20906b4641cafb1323ac880d144826754049d7cb7c84647e77cddea743520e431f9dfdc050711d9e8dd2d9ff5baa855cda8ee597b99a2d8fbb2d41df

Download Submit
memory/796-21-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/796-5-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2084-0-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2084-1-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2084-59-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2084-29-0x0000000003750000-0x0000000003817000-memory.dmp

Filesize
796KB

Download
memory/2728-58-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2844-32-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2844-31-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2844-61-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2844-62-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2844-63-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2844-65-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2844-67-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2844-70-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2844-73-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2844-75-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download