6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
28/10/2022, 21:46

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General

Target

6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe
Size

48KB
MD5

0c5408a21ec49d962c0d67b4b2330601
SHA1

724fe1d2f13a2409cb6bc1e110e32ae1b717d1f4
SHA256

6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b
SHA512

44f400aa720cf6dd5f22af0c0ecc6aa0d1f1033d005740e7cbc5c8a066b64e3a4638274393ce6a7b3a002423b891d839820f81daa8b90a7e8e0e06b27117cd89
SSDEEP

768:WREhr0ZAPHG0ZhJ461FxXhD9FvMH28ymSr30IVP9x:EWoatd1jhnMH28ymiVP9x

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
916	Imwyyom.exe
516	Imwyyom.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe	6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe
File opened for modification	C:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe	6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Imwyyom.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	Imwyyom.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	Imwyyom.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	Imwyyom.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	Imwyyom.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 916	4316	6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe	84
PID 4316 wrote to memory of 916	4316	6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe	84
PID 4316 wrote to memory of 916	4316	6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe	84

C:\Users\Admin\AppData\Local\Temp\6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe
"C:\Users\Admin\AppData\Local\Temp\6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe
  "C:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe"
  2⤵
  - Executes dropped EXE
  PID:916

C:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe
"C:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe"
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:516

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:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe

Filesize
48KB

MD5
0c5408a21ec49d962c0d67b4b2330601

SHA1
724fe1d2f13a2409cb6bc1e110e32ae1b717d1f4

SHA256
6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b

SHA512
44f400aa720cf6dd5f22af0c0ecc6aa0d1f1033d005740e7cbc5c8a066b64e3a4638274393ce6a7b3a002423b891d839820f81daa8b90a7e8e0e06b27117cd89

Download Submit
C:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe

Filesize
48KB

MD5
0c5408a21ec49d962c0d67b4b2330601

SHA1
724fe1d2f13a2409cb6bc1e110e32ae1b717d1f4

SHA256
6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b

SHA512
44f400aa720cf6dd5f22af0c0ecc6aa0d1f1033d005740e7cbc5c8a066b64e3a4638274393ce6a7b3a002423b891d839820f81daa8b90a7e8e0e06b27117cd89

Download Submit
C:\Program Files (x86)\Microsoft Mcaowm\Imwyyom.exe

Filesize
48KB

MD5
0c5408a21ec49d962c0d67b4b2330601

SHA1
724fe1d2f13a2409cb6bc1e110e32ae1b717d1f4

SHA256
6b14fc0e52b2f1612cd1162a37beaaebd1aa91b9663dbb213a445d66d65bea3b

SHA512
44f400aa720cf6dd5f22af0c0ecc6aa0d1f1033d005740e7cbc5c8a066b64e3a4638274393ce6a7b3a002423b891d839820f81daa8b90a7e8e0e06b27117cd89

Download Submit