998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119

Analysis

max time kernel
62s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2022 16:44

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General

Target

998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe
Size

115KB
MD5

8e6d9b3f46aa7299d6046c541ae92ed0
SHA1

71ac84dabe0df88079cd9088c3198962e9098f9f
SHA256

998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119
SHA512

e788618644f3497f7ae48a83bde947ae6e72a63f0ae06270b61e788815c9c9caeddfa07eea405cb07329bcfb24007e71af7408d34eca8eae71753936ad9bb607
SSDEEP

768:n+1rvyjsX6IGS6P8bQ0wLuB2s39BZIjEkApM3bhtNKKjSKgkNGy2Nr:nI3X6ImGQ04sZIjNAa3bEKjSKLNnCr

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-1830\\zaberg.exe"	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zaber0 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-1830\\zaberg.exe"	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.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	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

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"	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1612 set thread context of 3920	1612	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	82

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3920	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe
3920	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 3920	1612	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	82
PID 1612 wrote to memory of 3920	1612	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	82
PID 1612 wrote to memory of 3920	1612	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	82
PID 1612 wrote to memory of 3920	1612	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	82
PID 1612 wrote to memory of 3920	1612	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	82
PID 1612 wrote to memory of 3920	1612	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	82
PID 1612 wrote to memory of 3920	1612	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	82
PID 3920 wrote to memory of 2440	3920	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	43
PID 3920 wrote to memory of 2440	3920	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	43
PID 3920 wrote to memory of 2440	3920	998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe	43

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2440
- C:\Users\Admin\AppData\Local\Temp\998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe
  "C:\Users\Admin\AppData\Local\Temp\998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1612
- - C:\Users\Admin\AppData\Local\Temp\998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe
    C:\Users\Admin\AppData\Local\Temp\998c40df0252026346e25325fd579eb6889f62c701e5ef731783a5095ade5119.exe
    3⤵
    - 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:3920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1612-132-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1612-137-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1612-138-0x00000000021D0000-0x0000000002220000-memory.dmp

Filesize
320KB

Download
memory/3920-133-0x0000000000000000-mapping.dmp

Download
memory/3920-134-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/3920-136-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download