darkcomet | e73e433060da887b9e19f1a0fb9ff4da2b8a0711e7e668078159623773c252c7

General

Target

bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
Size

609KB
MD5

bbf781c69dce4173c7e32ab6b10b1ee5
SHA1

d47df21ea314b6ab30678860817936b4ebb0c0d2
SHA256

e73e433060da887b9e19f1a0fb9ff4da2b8a0711e7e668078159623773c252c7
SHA512

1ca47259ec4f0f58577858795007ad6c0ea7cdedefaf19c115da073abd82fc0a3ee3c88eb79368c4ee33454c6b305ddc358098516370ae525b0cf3c492df07a3
SSDEEP

12288:eIOpcu8WWKTnjS0tLeYmP98JLK7aXGZkmdYgG3slEhavoFSC:etp9WK/S0tLs9wKOGkmdpGUoFS

Score

10^/10

darkcomet uni discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

uni

C2

blackwindrat.no-ip.info:80

Mutex

DC_MUTEX-A54QWFN

Attributes

gencode
Z2Wd8Sm8QU2k
install
false
offline_keylogger
true
persistence
false

Signatures

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

Checks computer location settings 2 TTPs 2 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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\feel .exe	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\feel .exe	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
4720	nmmap.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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\java2 = "C:\\Users\\Admin\\AppData\\Roaming\\feel .exe"	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4396 set thread context of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85

UPX packed file 23 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4720-15-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-19-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-20-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-22-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-24-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-23-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-26-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-27-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-37-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-38-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-42-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-43-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-44-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-45-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-46-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-47-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-48-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-49-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-50-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-51-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-52-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-53-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4720-54-0x0000000000400000-0x00000000004BA000-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 5 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nmmap.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4720	nmmap.exe
Token: SeSecurityPrivilege	4720	nmmap.exe
Token: SeTakeOwnershipPrivilege	4720	nmmap.exe
Token: SeLoadDriverPrivilege	4720	nmmap.exe
Token: SeSystemProfilePrivilege	4720	nmmap.exe
Token: SeSystemtimePrivilege	4720	nmmap.exe
Token: SeProfSingleProcessPrivilege	4720	nmmap.exe
Token: SeIncBasePriorityPrivilege	4720	nmmap.exe
Token: SeCreatePagefilePrivilege	4720	nmmap.exe
Token: SeBackupPrivilege	4720	nmmap.exe
Token: SeRestorePrivilege	4720	nmmap.exe
Token: SeShutdownPrivilege	4720	nmmap.exe
Token: SeDebugPrivilege	4720	nmmap.exe
Token: SeSystemEnvironmentPrivilege	4720	nmmap.exe
Token: SeChangeNotifyPrivilege	4720	nmmap.exe
Token: SeRemoteShutdownPrivilege	4720	nmmap.exe
Token: SeUndockPrivilege	4720	nmmap.exe
Token: SeManageVolumePrivilege	4720	nmmap.exe
Token: SeImpersonatePrivilege	4720	nmmap.exe
Token: SeCreateGlobalPrivilege	4720	nmmap.exe
Token: 33	4720	nmmap.exe
Token: 34	4720	nmmap.exe
Token: 35	4720	nmmap.exe
Token: 36	4720	nmmap.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4720	nmmap.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 2788	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	83
PID 4396 wrote to memory of 2788	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	83
PID 4396 wrote to memory of 2788	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	83
PID 4396 wrote to memory of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85
PID 4396 wrote to memory of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85
PID 4396 wrote to memory of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85
PID 4396 wrote to memory of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85
PID 4396 wrote to memory of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85
PID 2788 wrote to memory of 3576	2788	cmd.exe	86
PID 2788 wrote to memory of 3576	2788	cmd.exe	86
PID 2788 wrote to memory of 3576	2788	cmd.exe	86
PID 4396 wrote to memory of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85
PID 4396 wrote to memory of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85
PID 4396 wrote to memory of 4720	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	85
PID 4396 wrote to memory of 4232	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	87
PID 4396 wrote to memory of 4232	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	87
PID 4396 wrote to memory of 4232	4396	bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe	87
PID 3576 wrote to memory of 4016	3576	wscript.exe	88
PID 3576 wrote to memory of 4016	3576	wscript.exe	88
PID 3576 wrote to memory of 4016	3576	wscript.exe	88

C:\Users\Admin\AppData\Local\Temp\bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bbf781c69dce4173c7e32ab6b10b1ee5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\caca.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\SysWOW64\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Roaming\invs.vbs" "C:\Users\Admin\AppData\Roaming\caca2.bat
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3576
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\caca2.bat" "
      4⤵
      Drops startup file
      System Location Discovery: System Language Discovery
      PID:4016
- C:\Windows\Temp\nmmap.exe
  C:\Windows\Temp\nmmap.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4720
- C:\Windows\Temp\nmmap.exe
  C:\Windows\Temp\nmmap.exe
  2⤵
  PID:4232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\caca.bat

Filesize
53B

MD5
aeee7f7f7aaec249a971555f1f20c216

SHA1
b56ccaef54da85ce588a508ad2edd3175a879195

SHA256
c6bd0ce2324e31fc6f5c9d01cdfc4520e7192944504666b60edaedf7deefae5d

SHA512
cbcbe8034745626032819bdbfa74ab5fb9dd3f0c9d476608e7cc2fac6004307e6b69fa2c1e6011be12f45dd1bd44be8044ded4db3188f894c183d00625b2cf97

Download Submit
C:\Users\Admin\AppData\Roaming\caca2.bat

Filesize
152B

MD5
8c2fc0c3257d07bd78b46e7f04cf6e73

SHA1
c69655aaad4c46a6dc8cd6fff01bf0a2edfe8dd4

SHA256
7a00bd726bfff902e90066c1d74c70426ce7eb71e2ca8d30d9bbe51eae4130d2

SHA512
b013ff8b5bc8d29712f02fed7c291770fdb5aa57e7d340e7c9e2b6c69701b5f37f756a3ed8b96eea0891ffc251ab762ed858fd48951915f1d49a8f3b665b7c88

Download Submit
C:\Users\Admin\AppData\Roaming\feel .exe

Filesize
609KB

MD5
bbf781c69dce4173c7e32ab6b10b1ee5

SHA1
d47df21ea314b6ab30678860817936b4ebb0c0d2

SHA256
e73e433060da887b9e19f1a0fb9ff4da2b8a0711e7e668078159623773c252c7

SHA512
1ca47259ec4f0f58577858795007ad6c0ea7cdedefaf19c115da073abd82fc0a3ee3c88eb79368c4ee33454c6b305ddc358098516370ae525b0cf3c492df07a3

Download Submit
C:\Users\Admin\AppData\Roaming\invs.vbs

Filesize
78B

MD5
c578d9653b22800c3eb6b6a51219bbb8

SHA1
a97aa251901bbe179a48dbc7a0c1872e163b1f2d

SHA256
20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

SHA512
3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

Download Submit
C:\Windows\Temp\nmmap.exe

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/4396-1-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4396-2-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4396-41-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4396-36-0x0000000074F40000-0x00000000754F1000-memory.dmp

Filesize
5.7MB

Download
memory/4396-35-0x0000000074F42000-0x0000000074F43000-memory.dmp

Filesize
4KB

Download
memory/4396-0-0x0000000074F42000-0x0000000074F43000-memory.dmp

Filesize
4KB

Download
memory/4720-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-42-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-28-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/4720-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-23-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-24-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-20-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-37-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-38-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-15-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-26-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-43-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-44-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-45-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-46-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-47-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-48-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-49-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-50-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-51-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-52-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-53-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4720-54-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads