b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec

Analysis

max time kernel
123s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25/11/2022, 10:38

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General

Target

b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe
Size

1.5MB
MD5

f7a7d818c23c917f961c2df2e7e13eb4
SHA1

986442d1ff74b77717a7a82708b788ba828a6ba5
SHA256

b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec
SHA512

bc9a5c3e4655e28cc096b921829a0eda3ba047820c0cb2b2315d11ca0f2504e634b5f2b3cd0e7a221fea975d6de6d0e6dcd49f347692cbb42d3b224337c01c44
SSDEEP

24576:Hpa/O74CNt3r2J2FC3eUldZUJ3OlKU4UDcc6Cy+9eG:wcZC35VcOcmDcc6Cd

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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5056 set thread context of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4468	PING.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4472	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe
4472	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe
4472	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe
4472	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe
4472	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 2744	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	82
PID 5056 wrote to memory of 2744	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	82
PID 5056 wrote to memory of 2744	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	82
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 5056 wrote to memory of 4472	5056	b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe	84
PID 2744 wrote to memory of 4468	2744	cmd.exe	85
PID 2744 wrote to memory of 4468	2744	cmd.exe	85
PID 2744 wrote to memory of 4468	2744	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe
"C:\Users\Admin\AppData\Local\Temp\b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping -c 5 8.8.8.8
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\PING.EXE
    ping -c 5 8.8.8.8
    3⤵
    - Runs ping.exe
    PID:4468
- C:\Users\Admin\AppData\Local\Temp\b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe
  "C:\Users\Admin\AppData\Local\Temp\b71f44fa0aec95215a1d07c23c8bfcba69be2257d74db3015814435f08163fec.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4472

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4472-135-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/4472-134-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/4472-136-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/4472-137-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/4472-139-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download
memory/4472-140-0x0000000000400000-0x00000000004DF000-memory.dmp

Filesize
892KB

Download