darkcomet | d6e1a141d7d0c111f817162be796546fb5a3b023b7c8f8157f43b23852977f26

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 02:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Size

260KB
MD5

76f3f28443e41c246d4e58c3ee89cabd
SHA1

64b8f72fc0a2f8c8c9e6ca11ca46c996b5400952
SHA256

d6e1a141d7d0c111f817162be796546fb5a3b023b7c8f8157f43b23852977f26
SHA512

5e96a7b6493abf556be963691c03e4b36e50911408d877a79928ec1920577a4cc38fae8f2c9198c1880d2331fb2ac07caca5e4aebdb9cfce6799d50e9af46126
SSDEEP

6144:ycNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37:ycW7KEZlPzCy37

Score

10^/10

darkcomet b--l--a--y discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

B--L--A--Y

192.168.2.104:1604

192.168.2.104:1704

192.168.2.104:1804

192.168.2.104:1904

217.247.254.47:1604

217.247.254.47:1704

217.247.254.47:1804

217.247.254.47:1904

jacker777.zapto.org:1604

jacker777.zapto.org:1704

jacker777.zapto.org:1804

jacker777.zapto.org:1904

Mutex

DC_MUTEX-3JK9TET

Attributes

InstallPath
windows_old\blay.exe
gencode
iSwWWwE0egCx
install
true
offline_keylogger
true
persistence
false
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

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\\windows_old\\blay.exe"	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	blay.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe

Deletes itself 1 IoCs

pid	Process
4948	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
5008	blay.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	blay.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\windows_old\\blay.exe"	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2500-0-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/files/0x0007000000023c9e-7.dat	upx
behavioral2/memory/2500-16-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/5008-17-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/5008-22-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/5008-25-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/5008-27-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/5008-29-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/5008-31-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/5008-33-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/5008-35-0x0000000000400000-0x00000000004BA000-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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	blay.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5008	blay.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeSecurityPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeTakeOwnershipPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeLoadDriverPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeSystemProfilePrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeSystemtimePrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeProfSingleProcessPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeIncBasePriorityPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeCreatePagefilePrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeBackupPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeRestorePrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeShutdownPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeDebugPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeSystemEnvironmentPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeChangeNotifyPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeRemoteShutdownPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeUndockPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeManageVolumePrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeImpersonatePrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeCreateGlobalPrivilege	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: 33	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: 34	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: 35	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: 36	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
Token: SeIncreaseQuotaPrivilege	5008	blay.exe
Token: SeSecurityPrivilege	5008	blay.exe
Token: SeTakeOwnershipPrivilege	5008	blay.exe
Token: SeLoadDriverPrivilege	5008	blay.exe
Token: SeSystemProfilePrivilege	5008	blay.exe
Token: SeSystemtimePrivilege	5008	blay.exe
Token: SeProfSingleProcessPrivilege	5008	blay.exe
Token: SeIncBasePriorityPrivilege	5008	blay.exe
Token: SeCreatePagefilePrivilege	5008	blay.exe
Token: SeBackupPrivilege	5008	blay.exe
Token: SeRestorePrivilege	5008	blay.exe
Token: SeShutdownPrivilege	5008	blay.exe
Token: SeDebugPrivilege	5008	blay.exe
Token: SeSystemEnvironmentPrivilege	5008	blay.exe
Token: SeChangeNotifyPrivilege	5008	blay.exe
Token: SeRemoteShutdownPrivilege	5008	blay.exe
Token: SeUndockPrivilege	5008	blay.exe
Token: SeManageVolumePrivilege	5008	blay.exe
Token: SeImpersonatePrivilege	5008	blay.exe
Token: SeCreateGlobalPrivilege	5008	blay.exe
Token: 33	5008	blay.exe
Token: 34	5008	blay.exe
Token: 35	5008	blay.exe
Token: 36	5008	blay.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5008	blay.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 4948	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	82
PID 2500 wrote to memory of 5008	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	83
PID 2500 wrote to memory of 5008	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	83
PID 2500 wrote to memory of 5008	2500	JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe	83
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84
PID 5008 wrote to memory of 3572	5008	blay.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76f3f28443e41c246d4e58c3ee89cabd.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4948
- C:\Users\Admin\AppData\Local\Temp\windows_old\blay.exe
  "C:\Users\Admin\AppData\Local\Temp\windows_old\blay.exe"
  2⤵
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5008
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3572

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\windows_old\blay.exe

Filesize
260KB

MD5
76f3f28443e41c246d4e58c3ee89cabd

SHA1
64b8f72fc0a2f8c8c9e6ca11ca46c996b5400952

SHA256
d6e1a141d7d0c111f817162be796546fb5a3b023b7c8f8157f43b23852977f26

SHA512
5e96a7b6493abf556be963691c03e4b36e50911408d877a79928ec1920577a4cc38fae8f2c9198c1880d2331fb2ac07caca5e4aebdb9cfce6799d50e9af46126

Download Submit
memory/2500-0-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2500-1-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/2500-19-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/2500-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3572-18-0x0000000001200000-0x0000000001201000-memory.dmp

Filesize
4KB

Download
memory/4948-5-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/5008-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5008-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5008-25-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5008-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5008-29-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5008-31-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5008-33-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5008-35-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads