darkcomet | ba91d49ac453d3eb14950819a8cd6ee72aa704a24f1e47d0f8e180a3dfc768e9

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

C2

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

1

T1064

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

Scripting

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

1

T1082

Virtualization/Sandbox Evasion

2

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

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads