5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1

Analysis

max time kernel
91s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2022, 08:52

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General

Target

5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe
Size

92KB
MD5

e73d7d30d292dce26fa195095547bbc4
SHA1

6e7f1cc4d390455868a114b9328c933d8ef8fb3a
SHA256

5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1
SHA512

e5743903333f759eef594d6fc0c8daed88a9c3575a02fdbced3afb7d196e2a2ecea98109aa9eee4763b2ac288d42129543878040be006374d9d66ad375dd04a7
SSDEEP

1536:V8XPFn+jEmNQFEPAlRggWm7og1nsLA1ZyleXZnZCeVoBCWdI3GfOJQFox:V8fUAmNQFEPAIgblsLA7KemhlfOJ+W

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
368	winlogon.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4768-133-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4768-135-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4768-136-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4768-142-0x0000000000400000-0x0000000000418000-memory.dmp	upx

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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4364 set thread context of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1984	368	WerFault.exe	81

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4768	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4364 wrote to memory of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79
PID 4364 wrote to memory of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79
PID 4364 wrote to memory of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79
PID 4364 wrote to memory of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79
PID 4364 wrote to memory of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79
PID 4364 wrote to memory of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79
PID 4364 wrote to memory of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79
PID 4364 wrote to memory of 4768	4364	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	79
PID 4768 wrote to memory of 368	4768	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	81
PID 4768 wrote to memory of 368	4768	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	81
PID 4768 wrote to memory of 368	4768	5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe	81

C:\Users\Admin\AppData\Local\Temp\5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe
"C:\Users\Admin\AppData\Local\Temp\5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4364
- C:\Users\Admin\AppData\Local\Temp\5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1.exe
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4768
- - C:\Users\Admin\E696D64614\winlogon.exe
    "C:\Users\Admin\E696D64614\winlogon.exe"
    3⤵
    - Executes dropped EXE
    PID:368
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 368 -s 624
      4⤵
      Program crash
      PID:1984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 368 -ip 368
1⤵
PID:2468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\Users\Admin\E696D64614\winlogon.exe

Filesize
92KB

MD5
e73d7d30d292dce26fa195095547bbc4

SHA1
6e7f1cc4d390455868a114b9328c933d8ef8fb3a

SHA256
5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1

SHA512
e5743903333f759eef594d6fc0c8daed88a9c3575a02fdbced3afb7d196e2a2ecea98109aa9eee4763b2ac288d42129543878040be006374d9d66ad375dd04a7

Download Submit
C:\Users\Admin\E696D64614\winlogon.exe

Filesize
92KB

MD5
e73d7d30d292dce26fa195095547bbc4

SHA1
6e7f1cc4d390455868a114b9328c933d8ef8fb3a

SHA256
5b3122191c57179eb2668f42441870fc4e5807aa6a21eafa6969a51c59ccf8c1

SHA512
e5743903333f759eef594d6fc0c8daed88a9c3575a02fdbced3afb7d196e2a2ecea98109aa9eee4763b2ac288d42129543878040be006374d9d66ad375dd04a7

Download Submit
memory/4768-133-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4768-135-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4768-136-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4768-142-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download