b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6

Analysis

max time kernel
148s
max time network
163s
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, 14:36

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General

Target

b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6.exe
Size

223KB
MD5

735764c37b0379f8502c4951ed9e6559
SHA1

c24b548c5b73b8cb9fef6501831a4a88c0c56def
SHA256

b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6
SHA512

14f91039d3dcb461b852f6bf739902a3d3265e6dcc7b25a7e8669771918ac9e639a3a55026cbd46ca298748c35074200bc8edeec00aa55110052259e79c451c2
SSDEEP

6144:OJezGriexb7MH75mYgE8ki53ZJSgKa+p8nOnn:6A8m453ZsZalOnn

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/3828-132-0x0000000000400000-0x000000000047B000-memory.dmp	upx
behavioral2/memory/3828-136-0x0000000000400000-0x000000000047B000-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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6.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
3332	3828	WerFault.exe	78

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
4196	ipconfig.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3828	b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3828 wrote to memory of 4196	3828	b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6.exe	81
PID 3828 wrote to memory of 4196	3828	b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6.exe	81
PID 3828 wrote to memory of 4196	3828	b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6.exe	81

C:\Users\Admin\AppData\Local\Temp\b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6.exe
"C:\Users\Admin\AppData\Local\Temp\b9c2df35cc94e12e456cbcb7fc3340e41c64dd64c2473be9cafc280a0e834ce6.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3828
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\System32\ipconfig.exe" /release
  2⤵
  - Gathers network information
  PID:4196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3828 -s 708
  2⤵
  - Program crash
  PID:3332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3828 -ip 3828
1⤵
PID:1912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

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/3828-132-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/3828-136-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads