76d96440920903feab31a57db74faa6e6669bf0162909f9d82bddc167b4f8e94

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 17:30

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General

Target

2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe
Size

39KB
MD5

cd6986982567d6eb7f34b6c37470c57f
SHA1

da5b5f9b03d5a01a1a5412e4536a7136f417c721
SHA256

76d96440920903feab31a57db74faa6e6669bf0162909f9d82bddc167b4f8e94
SHA512

0b7dc9456e2667ba339d820a797fecc822134bcbc0325d88a317e6e75851a8cf68fc81720418f29208a829bd5c5e658e1dd7145b8135f93c111cc962a08018b8
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/EG:btB9g/WItCSsAGjX7e9N0hunKLYp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b87-12.dat	CryptoLocker_rule2

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
704	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 428 wrote to memory of 704	428	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe	83
PID 428 wrote to memory of 704	428	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe	83
PID 428 wrote to memory of 704	428	2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_cd6986982567d6eb7f34b6c37470c57f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:428
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  PID:704

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
40KB

MD5
b223615543e2f62b83cdb49fe41a09c3

SHA1
654af7ee4ae25c5df26a9d8fa02ae073cc82f69c

SHA256
f24722a138cc43d073766c914ec26d570f807b6fd29c1c0aae912743f14b75c8

SHA512
714de50d54b2de57c43f3f2795685fd2709c1deceb3033808906459857cc4bf97edbbf2503898dc6d35ed0a6ebfe11394bc70d9e6702ed0f2f8d0fa49be4b560

Download Submit
memory/428-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/428-5-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/428-8-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/704-25-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download