88aea2f1e662e583d3e94f68c273aa2504ddf84fc0f8631193012ded65030d19

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12-05-2024 04:47

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General

Target

2024-05-12_9e04510cbc22b34d5a7d9a68d6f2c555_cryptolocker.exe
Size

36KB
MD5

9e04510cbc22b34d5a7d9a68d6f2c555
SHA1

d00b239c144932d1effabe0c0979e3e89ead02cf
SHA256

88aea2f1e662e583d3e94f68c273aa2504ddf84fc0f8631193012ded65030d19
SHA512

9dc03a5da5b8cdf31c7a6015e9183d7ecba858c323a3b14a698b3de2b83c32b6fc8f020999fd83717e0af97c4c7d6dd39b0c5757ed4e57aecb96cddbac13ecaa
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZvNAR:btB9g/WItCSsAGjX7r3BTZvNU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-12_9e04510cbc22b34d5a7d9a68d6f2c555_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3956	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 1824 wrote to memory of 3956	1824	2024-05-12_9e04510cbc22b34d5a7d9a68d6f2c555_cryptolocker.exe	82
PID 1824 wrote to memory of 3956	1824	2024-05-12_9e04510cbc22b34d5a7d9a68d6f2c555_cryptolocker.exe	82
PID 1824 wrote to memory of 3956	1824	2024-05-12_9e04510cbc22b34d5a7d9a68d6f2c555_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-12_9e04510cbc22b34d5a7d9a68d6f2c555_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_9e04510cbc22b34d5a7d9a68d6f2c555_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1824
- 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:3956

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
c9d9cdbc338592499cd529d69eeed886

SHA1
6600b47dd1ea26d5b2c9842b1c228f7d205dbfc9

SHA256
f04593d3f439d675d7740268c74df42ee16e59a8a82409d562aa44a353e4400b

SHA512
b7bdd10e0ced90282610bc8c7560aaa7a12378116a5adf312c837c1b6be43d747fff9dfbd2595a551af1551107298f86b191d215b89e8850b4e081152de3746b

Download Submit
C:\Users\Admin\AppData\Local\Temp\gewosik.exe

Filesize
185B

MD5
1342645801a0fd1ca015e2e304931491

SHA1
2758a0dfc4c7dbecca91fc9a873c72992703ec21

SHA256
378562669aadd31e06609dfd3056518f8e03a5910d640578ecfe22ee97c2f42f

SHA512
533db632e6f3def4a046147e075acb1e783f13fa82e625fbc90bcdfae42a1c2bcd57386d179a8633353cccf7c63c0dcfb64e87c978d8ab13e65c2ce7168f9a98

Download Submit
memory/1824-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1824-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1824-8-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3956-25-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download