61b6b3102c10aee6760b08344ae320df1056707bfdf4ccfbcb920f3e0feacfcc

Analysis

max time kernel
141s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 16:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-18_33987f8161b94c5b706db44eead0130d_cryptolocker.exe
Size

60KB
MD5

33987f8161b94c5b706db44eead0130d
SHA1

b91ecd3f298ff060d81d3c7b130838c05d90f640
SHA256

61b6b3102c10aee6760b08344ae320df1056707bfdf4ccfbcb920f3e0feacfcc
SHA512

37d633d254453c69f6f70c822ffadf515eb7d8365efd864c44ca10a9148417a17f25ae18038acbfb4f945527a00bdad80e74b0c3fd66d96787e1369aa12747ad
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHk:btng54SMLr+/AO/kIhfoKMHdd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000231b6-12.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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	2024-02-18_33987f8161b94c5b706db44eead0130d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1464	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 3268 wrote to memory of 1464	3268	2024-02-18_33987f8161b94c5b706db44eead0130d_cryptolocker.exe	79
PID 3268 wrote to memory of 1464	3268	2024-02-18_33987f8161b94c5b706db44eead0130d_cryptolocker.exe	79
PID 3268 wrote to memory of 1464	3268	2024-02-18_33987f8161b94c5b706db44eead0130d_cryptolocker.exe	79

C:\Users\Admin\AppData\Local\Temp\2024-02-18_33987f8161b94c5b706db44eead0130d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_33987f8161b94c5b706db44eead0130d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3268
- 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:1464

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

Loading Replay Monitor...

Downloads

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

Filesize
60KB

MD5
ed19a966336e93e26930ddf76959b3fe

SHA1
0ca5416788a325b685c72dafb8c37ef57912f779

SHA256
ce968b6489e6e328743cb5b519211407a105d9901b84db48ead91448ee7c6213

SHA512
51092c6ce5f1e01809f4be48ae6201a5f75a1893d9d6e62b043872131ebd23ffb0e6cf127ebe10bdbc989fcdf342ea77e229fc41e32466092dbda8a11babf2cb

Download Submit
memory/1464-21-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/3268-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3268-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3268-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download