5d6bda56ba66b2bddb43b9c4c4155dc5a6a65e9d7bebe2994255b5408832ff5b

Analysis

max time kernel
85s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14-02-2024 03:51

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General

Target

2024-02-14_5feb0ba46daf0766a19f30fcbac026bf_cryptolocker.exe
Size

35KB
MD5

5feb0ba46daf0766a19f30fcbac026bf
SHA1

668cfcfc35f13b36b757fe589ab744247debc6de
SHA256

5d6bda56ba66b2bddb43b9c4c4155dc5a6a65e9d7bebe2994255b5408832ff5b
SHA512

3b9c4799ad3736e1e6174c60683e33b72d51f9c436a4dcc469d7bcc7b594d42eb40e47fb4426bfc4a58544235e79cc6b9d3408d0166795e5e6adc8771f4b0313
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKUC:btB9g/WItCSsAGjX7e9N0hunKUC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002310b-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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-14_5feb0ba46daf0766a19f30fcbac026bf_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2184	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 1144 wrote to memory of 2184	1144	2024-02-14_5feb0ba46daf0766a19f30fcbac026bf_cryptolocker.exe	82
PID 1144 wrote to memory of 2184	1144	2024-02-14_5feb0ba46daf0766a19f30fcbac026bf_cryptolocker.exe	82
PID 1144 wrote to memory of 2184	1144	2024-02-14_5feb0ba46daf0766a19f30fcbac026bf_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-02-14_5feb0ba46daf0766a19f30fcbac026bf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_5feb0ba46daf0766a19f30fcbac026bf_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1144
- 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:2184

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
35KB

MD5
c1fad7f950a02177448acf601981ce9e

SHA1
c4b5091d5d04c145c1599fda59d9b942790c1c05

SHA256
60c26c1cacabac41c35aceb7bb87ca24b29a517e2ea4ce43b2984915497434a9

SHA512
3fe151e0d8b81c5cbccfb36006fa55a77ab51a41e1e47da3c6d7c9d3784d3935321e152820ac43a86847187dbdc1d78b3ceb55f642b9eee32d022873ee819b3f

Download Submit
memory/1144-0-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1144-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1144-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2184-21-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download