c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15

Analysis

max time kernel
160s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 06:05

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General

Target

c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15.exe
Size

5KB
MD5

40a2d46d430b793ef9bf9b8fa472c89c
SHA1

a241a7ab0945098746686deddf50bd8d814691b8
SHA256

c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15
SHA512

07653fea5d4bb5a1f12f2cb863d91c0ea0e4a13d49e561c04a53a3e80605526de11439f15d70dc1b8c20c320c7a53fbcec1713d50a5d11291092e63f7e89beda
SSDEEP

96:IBDzxCW0EQfNF9kSQpPJxLnO2tlQDiTG7jqwbq:qcPFLQpfLnOwQDoG7jqwbq

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/1828-132-0x0000000000400000-0x0000000000407000-memory.dmp	upx
behavioral2/memory/1828-134-0x0000000000400000-0x0000000000407000-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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15.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
4676	1828	WerFault.exe	16

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1828 wrote to memory of 4632	1828	c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15.exe	79
PID 1828 wrote to memory of 4632	1828	c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15.exe	79
PID 1828 wrote to memory of 4632	1828	c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15.exe	79

C:\Users\Admin\AppData\Local\Temp\c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15.exe
"C:\Users\Admin\AppData\Local\Temp\c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\c631fced0f74c5202e5b6dda8505ed786826b3f8f291cb96f25f7977477b3b15.exe > nul
  2⤵
  PID:4632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 1548
  2⤵
  - Program crash
  PID:4676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1828 -ip 1828
1⤵
PID:4696

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/1828-132-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1828-134-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download