644f380be34849e40b8856477f5b1911bb8dfe5a90d51157966c9dc6138d8b33

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 20:11

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General

Target

2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe
Size

387KB
MD5

2f4fde435ab3989498b1da032c4e6115
SHA1

8bf50b8d9fadf32e1b7b5c5bc41555943dc57ac7
SHA256

644f380be34849e40b8856477f5b1911bb8dfe5a90d51157966c9dc6138d8b33
SHA512

3d756669a613f4a567690581fb433354835243535f17af8981c3ef4549fe557956b1300263ac881cda7209219844ae1cd67356b0106fdf602f5c66e583acd0c9
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX1:nnOflT/ZFIjBz3xjTxynGUOUhX1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2452	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 876 wrote to memory of 2452	876	2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe	87
PID 876 wrote to memory of 2452	876	2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe	87
PID 876 wrote to memory of 2452	876	2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_2f4fde435ab3989498b1da032c4e6115_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:876
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2452

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
387KB

MD5
17b23659a595e305db0360104c6045e3

SHA1
2214f8de2d9f28dfac57296f7a8b9b6c8d9681f8

SHA256
cc62232a9f9c0fa4d957f2ef8e9cc71e107527c54487e18ad2a29ff06e0a8fdd

SHA512
01f8ff3268ba30cd83bff5fb037ba3451a65fec9a2a717e5211507dfb5759dd85fe78f394699ac85af8da3d79bbb655f7c4d08a01cc32e75dbe28ab17538ac0e

Download Submit
memory/876-0-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/876-1-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/876-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2452-23-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download