a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8

Analysis

max time kernel
24s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 00:30

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General

Target

a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe
Size

84KB
MD5

3614775c4d2b7504d608360d5b4db290
SHA1

5d7dcc6f6c318ae23ae9cd19665907fa8ae8c696
SHA256

a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8
SHA512

b3b6d1706f7675000b53a169effa5828e43514f939a3a2957e6e93ec29fd04aaee865636bb3988fe06a641be113c46ef1296b21bc3b213d84b767919a09e4391
SSDEEP

768:DTbYNscGYzZ2i+BJd/bI0/F/NstMlwQTOxelNmw5jRnDU5b:DTWG6H+n5IUJxdlNmKjRqb

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

doarook.exe

pid process

4608 doarook.exe

pid	process
4608	doarook.exe

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

Processes:

a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe

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

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exedoarook.exe

pid process

2444 a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe
4608 doarook.exe

pid	process
2444	a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe
4608	doarook.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe

description	pid	process	target process
PID 2444 wrote to memory of 4608	2444	a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe	doarook.exe
PID 2444 wrote to memory of 4608	2444	a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe	doarook.exe
PID 2444 wrote to memory of 4608	2444	a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe	doarook.exe

C:\Users\Admin\AppData\Local\Temp\a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe
"C:\Users\Admin\AppData\Local\Temp\a87883b9b919198edf85a1584a20f261b119ce34e6af34ac854e963d49e1d2d8.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2444

C:\Users\Admin\doarook.exe
"C:\Users\Admin\doarook.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4608

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\doarook.exe
Filesize
84KB

MD5
b9d920f5fabd49f199378301cf46077d

SHA1
66e3276697aaf4f34eade3884a256f4803a6c4e7

SHA256
8d9b6f9abcbae967c5ba24ece9746b15371d1fa722f888e9256ac0a8bcd2a395

SHA512
846016f8cd2f96ce5afb84b082f50f8a27ca54d71d200d316dc5628bf948e55166ac8abe6a37c889db713219653420818933262be3741e30f778da193c9a993e

Download Submit
C:\Users\Admin\doarook.exe
Filesize
84KB

MD5
b9d920f5fabd49f199378301cf46077d

SHA1
66e3276697aaf4f34eade3884a256f4803a6c4e7

SHA256
8d9b6f9abcbae967c5ba24ece9746b15371d1fa722f888e9256ac0a8bcd2a395

SHA512
846016f8cd2f96ce5afb84b082f50f8a27ca54d71d200d316dc5628bf948e55166ac8abe6a37c889db713219653420818933262be3741e30f778da193c9a993e

Download Submit
memory/4608-134-0x0000000000000000-mapping.dmp

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