7dfdaf39df5d3fa219ce9f2b88e294357bcdf1fafe57ae674def09f0e20691bd

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 12:48

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General

Target

6fa7bb05865a2d66b3316e7279e245ec.exe
Size

42KB
MD5

6fa7bb05865a2d66b3316e7279e245ec
SHA1

18a2cc7739518a1402567b1dc31ee2623f9b474a
SHA256

7dfdaf39df5d3fa219ce9f2b88e294357bcdf1fafe57ae674def09f0e20691bd
SHA512

44e28e4fdf8dbd181a2a14511627d7ec92e775687b4b8ad2d41b580e52d5177198c85b34daef9e7ceebdd83f5edbbd58a6f86c556a78c46967ef57f768fbc00f
SSDEEP

768:L+1rvyjsX6IGS6P8bQ0wLuB2s39BZIjEkApM3bhtNKKjSKgkNGy2Nr:LI3X6ImGQ04sZIjNAa3bEKjSKLNnCr

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-1830\\zaberg.exe"	6fa7bb05865a2d66b3316e7279e245ec.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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zaber0 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-1830\\zaberg.exe"	6fa7bb05865a2d66b3316e7279e245ec.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-1830\Desktop.ini	6fa7bb05865a2d66b3316e7279e245ec.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-1830\\zaberg.exe"	6fa7bb05865a2d66b3316e7279e245ec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2084 set thread context of 2772	2084	6fa7bb05865a2d66b3316e7279e245ec.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2772	6fa7bb05865a2d66b3316e7279e245ec.exe
2772	6fa7bb05865a2d66b3316e7279e245ec.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2772	2084	6fa7bb05865a2d66b3316e7279e245ec.exe	91
PID 2084 wrote to memory of 2772	2084	6fa7bb05865a2d66b3316e7279e245ec.exe	91
PID 2084 wrote to memory of 2772	2084	6fa7bb05865a2d66b3316e7279e245ec.exe	91
PID 2084 wrote to memory of 2772	2084	6fa7bb05865a2d66b3316e7279e245ec.exe	91
PID 2084 wrote to memory of 2772	2084	6fa7bb05865a2d66b3316e7279e245ec.exe	91
PID 2084 wrote to memory of 2772	2084	6fa7bb05865a2d66b3316e7279e245ec.exe	91
PID 2084 wrote to memory of 2772	2084	6fa7bb05865a2d66b3316e7279e245ec.exe	91
PID 2772 wrote to memory of 3536	2772	6fa7bb05865a2d66b3316e7279e245ec.exe	40
PID 2772 wrote to memory of 3536	2772	6fa7bb05865a2d66b3316e7279e245ec.exe	40
PID 2772 wrote to memory of 3536	2772	6fa7bb05865a2d66b3316e7279e245ec.exe	40

C:\Users\Admin\AppData\Local\Temp\6fa7bb05865a2d66b3316e7279e245ec.exe
"C:\Users\Admin\AppData\Local\Temp\6fa7bb05865a2d66b3316e7279e245ec.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\6fa7bb05865a2d66b3316e7279e245ec.exe
  C:\Users\Admin\AppData\Local\Temp\6fa7bb05865a2d66b3316e7279e245ec.exe
  2⤵
  - Modifies WinLogon for persistence
  - Adds Run key to start application
  - Drops desktop.ini file(s)
  - Modifies WinLogon
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2772

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3536

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

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2084-0-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2084-1-0x00000000008E0000-0x0000000000930000-memory.dmp

Filesize
320KB

Download
memory/2084-2-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2084-6-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2772-3-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/2772-5-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/2772-10-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download