4717c18126194af26aae70bfdd6fed1257160db3055f9868152542fac14731c8

Analysis

max time kernel
140s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2024, 19:22

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General

Target

2024-01-26_13093713e8829df48d262fe0a3572c57_cryptolocker.exe
Size

35KB
MD5

13093713e8829df48d262fe0a3572c57
SHA1

402036ae7d8fd44811bf0b3341f637a512c2c2b9
SHA256

4717c18126194af26aae70bfdd6fed1257160db3055f9868152542fac14731c8
SHA512

019d541ea4c7acfeaf96dd9626a2b91ef21fc73c6d150e02d4aa8dca9889ab24319346ac9f6697c446755469b92f96614c028da9c6fad02bf9ab52a76af41973
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRtl:btB9g/WItCSsAGjX7e9N0hunRtl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f9-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-26_13093713e8829df48d262fe0a3572c57_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
808	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 4608 wrote to memory of 808	4608	2024-01-26_13093713e8829df48d262fe0a3572c57_cryptolocker.exe	86
PID 4608 wrote to memory of 808	4608	2024-01-26_13093713e8829df48d262fe0a3572c57_cryptolocker.exe	86
PID 4608 wrote to memory of 808	4608	2024-01-26_13093713e8829df48d262fe0a3572c57_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-26_13093713e8829df48d262fe0a3572c57_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_13093713e8829df48d262fe0a3572c57_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4608
- 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:808

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
430a7d59f22ea302b14b9b16daac28d5

SHA1
a14af2e52891d7ee722e302e63edf471b435cc3c

SHA256
c441bb62c38bc3e24ddcbe965dbd266d59acdae7265fc943301f0880ba7f2a5e

SHA512
876d2808b41a3efbc34be5d9cb31925bdb978566367611df5dffa045948c57def8c5679cd9892937098cb4389862a2a48c2d3d1fb220e38678b30cbf9c1b1133

Download Submit
memory/808-21-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4608-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4608-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4608-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download