5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186

Analysis

max time kernel
103s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 06:12

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General

Target

5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186.exe
Size

4KB
MD5

383c8df5d6100793a3129f497b22893a
SHA1

731805b2434b4e01190609e3b4d85fc712c58f7e
SHA256

5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186
SHA512

8c826f3278badbaa97b0e5e46b7f34715f2d86a3b430e3cf5739b0644d6cf25a64cf6b22087b03ca003bb12caec9ab9850fe1820e64e108f5dd6a90c1a158c71
SSDEEP

48:qHy+fcjZA8mren96OjUxh/ATr9oPwhcd185nhL8/fD1mkq0sWnrSB8qSeJY8JTa3:U0mr25Q0aZgnWTIlWrSbhd

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5004-132-0x0000000000400000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/5004-134-0x0000000000400000-0x0000000000408000-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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186.exe

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
3748	5004	WerFault.exe	74

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 3912	5004	5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186.exe	86
PID 5004 wrote to memory of 3912	5004	5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186.exe	86
PID 5004 wrote to memory of 3912	5004	5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186.exe	86

C:\Users\Admin\AppData\Local\Temp\5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186.exe
"C:\Users\Admin\AppData\Local\Temp\5f3cae7bd2ab8815bb8a31d16489f71f4763b90f25fb868e0ecb26447595c186.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\5F3CAE~1.EXE > nul
  2⤵
  PID:3912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1244
  2⤵
  - Program crash
  PID:3748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5004 -ip 5004
1⤵
PID:3548

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

memory/5004-132-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/5004-134-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download