3d8f5b131e31f9ad975f35eef4bba963d092839cb55c13f7349e3ecbf8b9ba31

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 03:32

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General

Target

2024-04-17_22509cd9e57038b5ae0bf42863d9f096_cryptolocker.exe
Size

389KB
MD5

22509cd9e57038b5ae0bf42863d9f096
SHA1

905d94b9baeb6814e50dea69c76c37a086b55896
SHA256

3d8f5b131e31f9ad975f35eef4bba963d092839cb55c13f7349e3ecbf8b9ba31
SHA512

6ded4a8ebdb00bd6dd392c0575444bc77a98869ebec1b6489322ccbef38d05d154aa3f3250cca4ed8823b055960406f935de46105db6928f4caab1fae40970cc
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXW:nnOflT/ZFIjBz3xjTxynGUOUhXW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9b1-12.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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	2024-04-17_22509cd9e57038b5ae0bf42863d9f096_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4532	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 2716 wrote to memory of 4532	2716	2024-04-17_22509cd9e57038b5ae0bf42863d9f096_cryptolocker.exe	85
PID 2716 wrote to memory of 4532	2716	2024-04-17_22509cd9e57038b5ae0bf42863d9f096_cryptolocker.exe	85
PID 2716 wrote to memory of 4532	2716	2024-04-17_22509cd9e57038b5ae0bf42863d9f096_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-17_22509cd9e57038b5ae0bf42863d9f096_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_22509cd9e57038b5ae0bf42863d9f096_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4532

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
389KB

MD5
849461b0d7a5e8c011b3b72a32d4037f

SHA1
0a21e951b6de70275dd10ee455d7ee8204b542ee

SHA256
359aec08bb92dc726b09516b5727f942d9b155acd6176591acb755880a1ed374

SHA512
0bab3bad9088cc80592efc2f4797e1faecf24f2b121093315f06fdc743aa489b6d6e4b67a773d95fd336cd65eed722b234d5a4c79dbd04e0d86dfb63821df18e

Download Submit
memory/2716-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2716-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2716-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4532-17-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/4532-18-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download