967222f8c657b546e83bac7cc75e4f701529ef7ea757c5fd087c62ea3c7788f9

Analysis

max time kernel
163s
max time network
182s
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, 02:44

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General

Target

4d8fe77a34bd13fd59b183bdb877c444.exe
Size

42KB
MD5

4d8fe77a34bd13fd59b183bdb877c444
SHA1

897e0fd8ee533a53cb6fa847fcdb5b5c1b55baad
SHA256

967222f8c657b546e83bac7cc75e4f701529ef7ea757c5fd087c62ea3c7788f9
SHA512

6106b1d8218bcbc472f521facc58f493e5e9d3b6f3de20960419e18b1e123c597465a0aaa5ef7d95bf2d49615b75d21706e739dd6c2600a82005037e31394ec3
SSDEEP

768:022lUaV2R6mqLDwprB+fV4YGIscBYzZy52J/Q6x6U:b6Uakvp0wcBh5kpx6U

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\1a0ab066.exe,"	4d8fe77a34bd13fd59b183bdb877c444.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	4d8fe77a34bd13fd59b183bdb877c444.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 4820	2196	4d8fe77a34bd13fd59b183bdb877c444.exe	91
PID 2196 wrote to memory of 4820	2196	4d8fe77a34bd13fd59b183bdb877c444.exe	91
PID 2196 wrote to memory of 4820	2196	4d8fe77a34bd13fd59b183bdb877c444.exe	91

C:\Users\Admin\AppData\Local\Temp\4d8fe77a34bd13fd59b183bdb877c444.exe
"C:\Users\Admin\AppData\Local\Temp\4d8fe77a34bd13fd59b183bdb877c444.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\4D8FE7~1.EXE >> NUL
  2⤵
  PID:4820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2196-0-0x0000000000560000-0x0000000000564000-memory.dmp

Filesize
16KB

Download
memory/2196-1-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2196-4-0x0000000000560000-0x0000000000564000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads