1305ab6ff073ec1c0312d8b53c50c198598865a0291fb394c064b9be98a255e8

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 09:40

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General

Target

2024-02-23_5ed550c9cc000c09d21aa7722d259768_cryptolocker.exe
Size

385KB
MD5

5ed550c9cc000c09d21aa7722d259768
SHA1

663546a27363ec866627f972f3c47e455bfcb788
SHA256

1305ab6ff073ec1c0312d8b53c50c198598865a0291fb394c064b9be98a255e8
SHA512

7a00ecfa1006de1877a9012a405a0c46d4849541210474435a27080277f1ad06d87b9fe786c442a7f2d52f3273b92ae4fec246e083a96b2b1e7b4136859ad8df
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXx:nnOflT/ZFIjBz3xjTxynGUOUhXx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00060000000231f3-12.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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation	2024-02-23_5ed550c9cc000c09d21aa7722d259768_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5020	hasfj.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 1332 wrote to memory of 5020	1332	2024-02-23_5ed550c9cc000c09d21aa7722d259768_cryptolocker.exe	87
PID 1332 wrote to memory of 5020	1332	2024-02-23_5ed550c9cc000c09d21aa7722d259768_cryptolocker.exe	87
PID 1332 wrote to memory of 5020	1332	2024-02-23_5ed550c9cc000c09d21aa7722d259768_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-23_5ed550c9cc000c09d21aa7722d259768_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_5ed550c9cc000c09d21aa7722d259768_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1332
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:5020

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\hasfj.exe

Filesize
385KB

MD5
c78e8a75e13280f54d6bdb15f4d553ff

SHA1
6a901c6681b44a344522673f01b82f5416be7966

SHA256
713a10dfe83ce635a95392ef0de2168b15a506725886797d646ef786d8afdcc1

SHA512
225787cae73d9fdf5511cdd7bd965771c9e3a275ea121a06d7eae00ae23194beeafc9ac9f737050b88fe26cc8346b9655797cdd50618603230edc994d618f5e7

Download Submit
memory/1332-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1332-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1332-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/5020-18-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/5020-17-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download