eb0e55768697855cf00a2c66e3dbae4b5dbffe5d0fc90a26f93648e68ccb28b5

Analysis

max time kernel
150s
max time network
156s
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, 03:47

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General

Target

5197fea6dd68898e6eb71dbd514bd944.exe
Size

25KB
MD5

5197fea6dd68898e6eb71dbd514bd944
SHA1

442031bdf156a69468e87b33cf79851408868d23
SHA256

eb0e55768697855cf00a2c66e3dbae4b5dbffe5d0fc90a26f93648e68ccb28b5
SHA512

a885adf7fd05bb9a20b892df35c2110427776e4e51c882279101772b3cfbb510d5b599bd99ae11dea6331367b9411332f79d22d87de969085848f2059dbde7ae
SSDEEP

384:x/0rrQwc35G9rGWTTw33yqP5i2F5WvVFZksAi2q8:Src9sGKcHlNCz2q

Score

7^/10

Malware Config

Signatures

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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	5197fea6dd68898e6eb71dbd514bd944.exe

Executes dropped EXE 1 IoCs

pid	Process
4132	irun4.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\irun4.exe	5197fea6dd68898e6eb71dbd514bd944.exe
File opened for modification	C:\Windows\SysWOW64\irun4.exe	5197fea6dd68898e6eb71dbd514bd944.exe
File created	C:\Windows\SysWOW64\irun4.exe	irun4.exe

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

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4520	5197fea6dd68898e6eb71dbd514bd944.exe
4132	irun4.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 4132	4520	5197fea6dd68898e6eb71dbd514bd944.exe	89
PID 4520 wrote to memory of 4132	4520	5197fea6dd68898e6eb71dbd514bd944.exe	89
PID 4520 wrote to memory of 4132	4520	5197fea6dd68898e6eb71dbd514bd944.exe	89

C:\Users\Admin\AppData\Local\Temp\5197fea6dd68898e6eb71dbd514bd944.exe
"C:\Users\Admin\AppData\Local\Temp\5197fea6dd68898e6eb71dbd514bd944.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Windows\SysWOW64\irun4.exe
  "C:\Windows\system32\irun4.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of FindShellTrayWindow
  PID:4132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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:\Windows\SysWOW64\irun4.exe

Filesize
25KB

MD5
5197fea6dd68898e6eb71dbd514bd944

SHA1
442031bdf156a69468e87b33cf79851408868d23

SHA256
eb0e55768697855cf00a2c66e3dbae4b5dbffe5d0fc90a26f93648e68ccb28b5

SHA512
a885adf7fd05bb9a20b892df35c2110427776e4e51c882279101772b3cfbb510d5b599bd99ae11dea6331367b9411332f79d22d87de969085848f2059dbde7ae

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