22d78f61980b786020a96f29221bbf1583b576cf66436da0b2e5f5b744b5ef4a

Analysis

max time kernel
145s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 00:40

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General

Target

2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe
Size

35KB
MD5

9533cdf30260ea586ad8f0cd8dc53188
SHA1

5447912a9323cd4762d004e8a4fe84aff067d886
SHA256

22d78f61980b786020a96f29221bbf1583b576cf66436da0b2e5f5b744b5ef4a
SHA512

be2244a30e841f6e37af974d6c079b81c978db75c0ba2f1ab837b29f936731bda5cea3cd8083c573bdb820202664f5b990a6a06b66c00fa52bdda91ffa16c2d7
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiA0f9HMfKK:btB9g/WItCSsAGjX7e9N8sfB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023232-12.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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
5068	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 768 wrote to memory of 5068	768	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe	91
PID 768 wrote to memory of 5068	768	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe	91
PID 768 wrote to memory of 5068	768	2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_9533cdf30260ea586ad8f0cd8dc53188_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:768
- 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:5068

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
35KB

MD5
daf487633262c700bbfc112834be380a

SHA1
555fc252edb6bac787aa56ba0b9a27407abe2bba

SHA256
c85a4bc88a58721f9d462d42c92878381b88ee2a434514bcf70cbbf00d6fe44d

SHA512
95f3ed5ea7f2cac157ce8dd3bd739ce82d70ddd7fbfd01098bfdc999e28e4770860be478018e3c251b80c5d2fb7de79eeaf3c4a6ce14a9d4aa2979d2ead8211f

Download Submit
memory/768-0-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/768-1-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/768-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5068-21-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download