a8ae7f170094646a90ce091d0a148db65345d1560559b3782c5481fc516b5de1

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2024 02:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe
Size

34KB
MD5

30fb055cab8d5f2111d312b5bd8d401e
SHA1

fb0526e6042954d1ccc5d3073b7600810d5a67c7
SHA256

a8ae7f170094646a90ce091d0a148db65345d1560559b3782c5481fc516b5de1
SHA512

8fb8604e0d61aeaa66f03da03eea41eb8e9a170c0ea2ff919a5f1af905148a918e829de9498ef3cc91a345372e32bdd09c42a7ed4a5f2b51123c969dbc57d00b
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunXZe:btB9g/WItCSsAGjX7e9N0hunpe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023235-12.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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2288	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 2352 wrote to memory of 2288	2352	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe	83
PID 2352 wrote to memory of 2288	2352	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe	83
PID 2352 wrote to memory of 2288	2352	2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_30fb055cab8d5f2111d312b5bd8d401e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2352
- 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:2288

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
35KB

MD5
d3d40463fd935ef8a4fb73945e7796ab

SHA1
d7511848384c1a2febb693c1088d85d5bb28692f

SHA256
cdfd571176f9ec19149a76794d00ad19a665ed2e763b62e888e438014b99a266

SHA512
4d1af16d893b0939f353d3538569d927b8540622dcc84618a5e00e1b0c49d416b18ed9508c7a140ed29b3fcd21217620df0259ab108c079e147afe6721919071

Download Submit
memory/2288-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2352-0-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2352-1-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2352-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download