b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489

Analysis

max time kernel
167s
max time network
179s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 06:06

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General

Target

b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489.exe
Size

210KB
MD5

3be10848bad2b4872e832c0fd05738ab
SHA1

8f4c503b14b7d4ad188466d576ab62b08668b8ef
SHA256

b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489
SHA512

d1fe0848db27168c23c7ca344c812a873483d2635edbddcdb0e757295a2b2b47f8ef18c91fe1d7c876cb290467808ad67f5d4b46657fc933c66b142f62acc408
SSDEEP

6144:Nhj2L2PK0Biiq0BitmJmZGAhv5Xe0qtFnaZ:4K7nbNJm1RXe0mRaZ

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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DIFMXNEPW.lnk	b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings	b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
788	WINWORD.EXE
788	WINWORD.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
788	WINWORD.EXE
788	WINWORD.EXE
788	WINWORD.EXE
788	WINWORD.EXE
788	WINWORD.EXE
788	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 788	4660	b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489.exe	84
PID 4660 wrote to memory of 788	4660	b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489.exe	84

C:\Users\Admin\AppData\Local\Temp\b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489.exe
"C:\Users\Admin\AppData\Local\Temp\b39e01d2b0eed996910e64615ce3c327c630c1ab62d9a7d13d3d90758fd94489.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4660
- C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
  "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\FZXRW.doc" /o ""
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:788

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/788-133-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download
memory/788-134-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download
memory/788-135-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download
memory/788-136-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download
memory/788-137-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download
memory/788-138-0x00007FF9D24F0000-0x00007FF9D2500000-memory.dmp

Filesize
64KB

Download
memory/788-139-0x00007FF9D24F0000-0x00007FF9D2500000-memory.dmp

Filesize
64KB

Download
memory/788-141-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download
memory/788-142-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download
memory/788-143-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download
memory/788-144-0x00007FF9D4C70000-0x00007FF9D4C80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads