5f8705c195554fda0d26cf33e1a382eb1c82231c935006ca87f120d959ac0059

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23-02-2024 19:39

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General

Target

2024-02-23_501e7e7777ecf9f6cd622d5dbde027bd_cryptolocker.exe
Size

36KB
MD5

501e7e7777ecf9f6cd622d5dbde027bd
SHA1

a7a0086c4a572604617f8612c08691cd351d9116
SHA256

5f8705c195554fda0d26cf33e1a382eb1c82231c935006ca87f120d959ac0059
SHA512

7cfdc67ef40171f3c7dda106966d00a91aab3eb88b750d1271d88f657aba2686310ae8fbce799e861674d39d13d93310d3f2b721c83e5c249fcb09f5b056e54b
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKUj:btB9g/WItCSsAGjX7e9N0hunKUj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002312e-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-23_501e7e7777ecf9f6cd622d5dbde027bd_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
332	gewos.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 332	412	2024-02-23_501e7e7777ecf9f6cd622d5dbde027bd_cryptolocker.exe	86
PID 412 wrote to memory of 332	412	2024-02-23_501e7e7777ecf9f6cd622d5dbde027bd_cryptolocker.exe	86
PID 412 wrote to memory of 332	412	2024-02-23_501e7e7777ecf9f6cd622d5dbde027bd_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-23_501e7e7777ecf9f6cd622d5dbde027bd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_501e7e7777ecf9f6cd622d5dbde027bd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:412
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
36KB

MD5
223f0c719e98b9452992ae681318120d

SHA1
1db44c28ef076bc2206218bd15c1934313b95fb3

SHA256
1412105d29f73603cea0738aa35e1121bbc2aeca2035b48b724a10c0dc350be6

SHA512
12fa2a2978cefbadebbd4afe08ceafdbe9a866d40f7d5593f579bd6fab487c26aa5940597aa9b4ecab66551bb26467bdb910d3e6c763a20ca23722d8a454629b

Download Submit
memory/332-24-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/412-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/412-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/412-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download