darkcomet | ba91d49ac453d3eb14950819a8cd6ee72aa704a24f1e47d0f8e180a3dfc768e9

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11-04-2024 09:08

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General

Target

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe
Size

2.1MB
MD5

ed10850ad8d0971da324de2c30729742
SHA1

bb2f3935b780d1200554d9915da9e87d76edffbe
SHA256

ba91d49ac453d3eb14950819a8cd6ee72aa704a24f1e47d0f8e180a3dfc768e9
SHA512

197ce8f3282cfc640e702841d87f088e4a86a1c95f3bdb78f806eb86d1b72684ebfc1f53b98e8708e71c87b92c8f5b5f969bd84194a3260ea7f95980ef54a8dd
SSDEEP

49152:EiobiV082zrjoFFfQnU26RO0QaXIe7P7uCzrlOrtD57loZQu:ZVX2zraE1yIe+CzrlO557pu

Score

10^/10

darkcomet september 2021 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

SeptemBER 2021

bonding79.ddns.net:3316

goodgt79.ddns.net:3316

whatis79.ddns.net:3316

smath79.ddns.net:3316

jacknop79.ddns.net:3316

chrisle79.ddns.net:3316

Mutex

DC_MUTEX-6JQTXC0

Attributes

gencode
cVaduGzs7zFu
install
false
offline_keylogger
true
password
Password20$
persistence
false

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:

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\7QB313Lj8a3s62oa\\Vl5xYyUHkWO7.exe\",explorer.exe"	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Wine	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

description pid process target process

PID 3024 set thread context of 2636 3024 ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe vbc.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

pid process

3024 ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe
3024 ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

description	pid	process	target process
PID 3024 set thread context of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe

pid	process
3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe
3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exevbc.exe

description	pid	process
Token: SeDebugPrivilege	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe
Token: SeDebugPrivilege	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2636	vbc.exe
Token: SeSecurityPrivilege	2636	vbc.exe
Token: SeTakeOwnershipPrivilege	2636	vbc.exe
Token: SeLoadDriverPrivilege	2636	vbc.exe
Token: SeSystemProfilePrivilege	2636	vbc.exe
Token: SeSystemtimePrivilege	2636	vbc.exe
Token: SeProfSingleProcessPrivilege	2636	vbc.exe
Token: SeIncBasePriorityPrivilege	2636	vbc.exe
Token: SeCreatePagefilePrivilege	2636	vbc.exe
Token: SeBackupPrivilege	2636	vbc.exe
Token: SeRestorePrivilege	2636	vbc.exe
Token: SeShutdownPrivilege	2636	vbc.exe
Token: SeDebugPrivilege	2636	vbc.exe
Token: SeSystemEnvironmentPrivilege	2636	vbc.exe
Token: SeChangeNotifyPrivilege	2636	vbc.exe
Token: SeRemoteShutdownPrivilege	2636	vbc.exe
Token: SeUndockPrivilege	2636	vbc.exe
Token: SeManageVolumePrivilege	2636	vbc.exe
Token: SeImpersonatePrivilege	2636	vbc.exe
Token: SeCreateGlobalPrivilege	2636	vbc.exe
Token: 33	2636	vbc.exe
Token: 34	2636	vbc.exe
Token: 35	2636	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid process

2636 vbc.exe

pid	process
2636	vbc.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe

description	pid	process	target process
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe
PID 3024 wrote to memory of 2636	3024	ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ed10850ad8d0971da324de2c30729742_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2636-45-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-40-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2636-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-58-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-54-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-18-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-29-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2636-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3024-12-0x0000000075440000-0x0000000075453000-memory.dmp

Filesize
76KB

Download
memory/3024-3-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/3024-37-0x0000000074240000-0x000000007424E000-memory.dmp

Filesize
56KB

Download
memory/3024-13-0x0000000075420000-0x0000000075437000-memory.dmp

Filesize
92KB

Download
memory/3024-1-0x0000000075620000-0x000000007566A000-memory.dmp

Filesize
296KB

Download
memory/3024-11-0x0000000077660000-0x0000000077750000-memory.dmp

Filesize
960KB

Download
memory/3024-10-0x0000000075460000-0x00000000754E0000-memory.dmp

Filesize
512KB

Download
memory/3024-8-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/3024-43-0x0000000075620000-0x000000007566A000-memory.dmp

Filesize
296KB

Download
memory/3024-44-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/3024-0-0x00000000003E0000-0x000000000085C000-memory.dmp

Filesize
4.5MB

Download
memory/3024-46-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/3024-48-0x0000000077540000-0x000000007760C000-memory.dmp

Filesize
816KB

Download
memory/3024-47-0x0000000004A10000-0x0000000004A50000-memory.dmp

Filesize
256KB

Download
memory/3024-49-0x0000000075460000-0x00000000754E0000-memory.dmp

Filesize
512KB

Download
memory/3024-50-0x0000000077660000-0x0000000077750000-memory.dmp

Filesize
960KB

Download
memory/3024-9-0x00000000754E0000-0x00000000754EB000-memory.dmp

Filesize
44KB

Download
memory/3024-7-0x0000000077540000-0x000000007760C000-memory.dmp

Filesize
816KB

Download
memory/3024-6-0x0000000004A10000-0x0000000004A50000-memory.dmp

Filesize
256KB

Download
memory/3024-5-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/3024-4-0x0000000074D30000-0x00000000752DB000-memory.dmp

Filesize
5.7MB

Download
memory/3024-2-0x0000000075590000-0x0000000075599000-memory.dmp

Filesize
36KB

Download