darkcomet | f1dbb8876fc96c7f6e581989278428d39ac20b71d550dbc30bebe1aef57f4cf6

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 15:08

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General

Target
afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
Size 1.3MB
Sample240820-sjb5casfkr
SHA256 f1dbb8876fc96c7f6e581989278428d39ac20b71d550dbc30bebe1aef57f4cf6
MD5 afb8399e52a3a00ce8b48c8b9b509c61
SHA1 87a6e57e0a0d7406df2129b141813b7e6f04dc47
SHA512 7a8895284bcc0884cbb3b0e77f7db5aade68dc623990e063bc3fb818edd5886dcaf826d39fdd8f901bd248fbb1b64be1d99dff32b3a68ac3e748c96ff9e0e17e
SSDEEP 24576:ED0QZh9u/WpBWAzZu+KWQtKZKN6HIiSUlKYXZUGukwUvyCcFNJJU8kxiH4:v0NVuzWQL6vSU0i+JkX6CcVJUfY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

kinglion83.no-ip.org:1604

Mutex

DC_MUTEX-JZTM9CS

Attributes

gencode
jhg5guWmbXRE
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat 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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\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\rundll32 .exe	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundll32 .exe	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
3540	svhost.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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\rundll32 .exe"	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 528 set thread context of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88

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	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
Token: 33	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3540	svhost.exe
Token: SeSecurityPrivilege	3540	svhost.exe
Token: SeTakeOwnershipPrivilege	3540	svhost.exe
Token: SeLoadDriverPrivilege	3540	svhost.exe
Token: SeSystemProfilePrivilege	3540	svhost.exe
Token: SeSystemtimePrivilege	3540	svhost.exe
Token: SeProfSingleProcessPrivilege	3540	svhost.exe
Token: SeIncBasePriorityPrivilege	3540	svhost.exe
Token: SeCreatePagefilePrivilege	3540	svhost.exe
Token: SeBackupPrivilege	3540	svhost.exe
Token: SeRestorePrivilege	3540	svhost.exe
Token: SeShutdownPrivilege	3540	svhost.exe
Token: SeDebugPrivilege	3540	svhost.exe
Token: SeSystemEnvironmentPrivilege	3540	svhost.exe
Token: SeChangeNotifyPrivilege	3540	svhost.exe
Token: SeRemoteShutdownPrivilege	3540	svhost.exe
Token: SeUndockPrivilege	3540	svhost.exe
Token: SeManageVolumePrivilege	3540	svhost.exe
Token: SeImpersonatePrivilege	3540	svhost.exe
Token: SeCreateGlobalPrivilege	3540	svhost.exe
Token: 33	3540	svhost.exe
Token: 34	3540	svhost.exe
Token: 35	3540	svhost.exe
Token: 36	3540	svhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3540	svhost.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 3796	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	86
PID 528 wrote to memory of 3796	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	86
PID 528 wrote to memory of 3796	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	86
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 3540	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	88
PID 528 wrote to memory of 1920	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	89
PID 528 wrote to memory of 1920	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	89
PID 528 wrote to memory of 1920	528	afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe	89
PID 3796 wrote to memory of 2248	3796	cmd.exe	90
PID 3796 wrote to memory of 2248	3796	cmd.exe	90
PID 3796 wrote to memory of 2248	3796	cmd.exe	90
PID 2248 wrote to memory of 4896	2248	wscript.exe	92
PID 2248 wrote to memory of 4896	2248	wscript.exe	92
PID 2248 wrote to memory of 4896	2248	wscript.exe	92

C:\Users\Admin\AppData\Local\Temp\afb8399e52a3a00ce8b48c8b9b509c61_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\afb8399e52a3a00ce8b48c8b9b509c61_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:528
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\caca.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3796
- - C:\Windows\SysWOW64\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\caca2.bat
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2248
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\caca2.bat" "
      4⤵
      Drops startup file
      System Location Discovery: System Language Discovery
      PID:4896
- C:\Windows\Temp\svhost.exe
  C:\Windows\Temp\svhost.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3540
- C:\Windows\Temp\svhost.exe
  C:\Windows\Temp\svhost.exe
  2⤵
  PID:1920

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

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

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Downloads

caca.bat

Path C:\Users\Admin\AppData\Local\Temp\caca.bat
Size 47B
SHA256 eccc9f27214ff49689c1f597c0d3d3a3e45391064fd0baa9b5e0e03931b7822b
MD5 58ccb87aa1da4939df403810f1e68b6b
SHA1 dc8551f41682e5cb1dd25af3f11a789b1d37b295
SHA512 17ad698f496a445c5cbd0972df9fe966081a3cbee33fb7d7e003890ae946c65687b85b9b16990a872338d00d798b82dee06e86bd2d38b01ad292048134688fd0
MD5 SHA1 SHA512

Submit Download

caca2.bat

Path C:\Users\Admin\AppData\Local\Temp\caca2.bat
Size 151B
SHA256 d9aa03911260779b1f8a9b046a7ecf7aa87b0f13c762491fe8e06c482bac09a3
MD5 ed28c618f7d8306e3736432b58bb5d27
SHA1 441e6dab70e31d9c599fcd9e2d32009038781b42
SHA512 4257d8839e881a9ab6de6230a9df1e81456cb796eb9ee2361789fa5fe4c81b297ed1c472f91d97bb0b2ebdb6acadb924617e6ffd32fc96d8ddcebf8fee4a7880
MD5 SHA1 SHA512

Submit Download

invs.vbs

Path C:\Users\Admin\AppData\Local\Temp\invs.vbs
Size 78B
SHA256 20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2
MD5 c578d9653b22800c3eb6b6a51219bbb8
SHA1 a97aa251901bbe179a48dbc7a0c1872e163b1f2d
SHA512 3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d
MD5 SHA1 SHA512

Submit Download

rundll32-.txt

Path C:\Users\Admin\AppData\Local\Temp\rundll32-.txt
Size 1.3MB
SHA256 f1dbb8876fc96c7f6e581989278428d39ac20b71d550dbc30bebe1aef57f4cf6
MD5 afb8399e52a3a00ce8b48c8b9b509c61
SHA1 87a6e57e0a0d7406df2129b141813b7e6f04dc47
SHA512 7a8895284bcc0884cbb3b0e77f7db5aade68dc623990e063bc3fb818edd5886dcaf826d39fdd8f901bd248fbb1b64be1d99dff32b3a68ac3e748c96ff9e0e17e
SSDEEP 24576:ED0QZh9u/WpBWAzZu+KWQtKZKN6HIiSUlKYXZUGukwUvyCcFNJJU8kxiH4:v0NVuzWQL6vSU0i+JkX6CcVJUfY
MD5 SHA1 SHA512 SSDEEP

Submit Download

svhost.exe

Path C:\Windows\Temp\svhost.exe
Size 1.1MB
SHA256 b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0
MD5 d881de17aa8f2e2c08cbb7b265f928f9
SHA1 08936aebc87decf0af6e8eada191062b5e65ac2a
SHA512 5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34
SSDEEP 24576:jp2silPBMIXGWClfuRcUGIJYK15Qs/QZM:jp2sMO7VzUTJH15QFZM
MD5 SHA1 SHA512 SSDEEP

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memory/528-1-0x0000000075050000-0x0000000075601000-memory.dmp

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memory/528-2-0x0000000075050000-0x0000000075601000-memory.dmp

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memory/528-38-0x0000000075050000-0x0000000075601000-memory.dmp

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memory/528-34-0x0000000075050000-0x0000000075601000-memory.dmp

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memory/528-33-0x0000000075052000-0x0000000075053000-memory.dmp

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memory/528-0-0x0000000075052000-0x0000000075053000-memory.dmp

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memory/3540-23-0x00000000022C0000-0x00000000022C1000-memory.dmp

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memory/3540-42-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-24-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-25-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-15-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-22-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-35-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-20-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-39-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-40-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-41-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-19-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-43-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-44-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-45-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-46-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-47-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-48-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-49-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-50-0x0000000000400000-0x00000000004B0000-memory.dmp

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memory/3540-51-0x0000000000400000-0x00000000004B0000-memory.dmp

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