dc665de8a1add1ee33537c31b85a0271941500ccbd30ee02b7ab8ee6f421e382

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 03:44

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General

Target

2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe
Size

385KB
MD5

b962c4f402c3140019a8a96ba797af0f
SHA1

8b0f1ccbb999f1bd112fab02c97c6de4c5d682ee
SHA256

dc665de8a1add1ee33537c31b85a0271941500ccbd30ee02b7ab8ee6f421e382
SHA512

d4941c335422d595791762b47a2aa088f646066162f5e56b46e402dad9a5bf87fda51df18efa3d1163f4889d43bcbb025e468f8751def88f571fcfc630219e49
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXK:nnOflT/ZFIjBz3xjTxynGUOUhXK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1580	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 2584 wrote to memory of 1580	2584	2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe	89
PID 2584 wrote to memory of 1580	2584	2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe	89
PID 2584 wrote to memory of 1580	2584	2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_b962c4f402c3140019a8a96ba797af0f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1580

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
386KB

MD5
f9157bc76af8afa46eef3b2f208521c1

SHA1
b739fb00c4a3a22ccd6cd92a917bd10416d86ef0

SHA256
13a0805fa1ee62b079623703a580c2361000aa4c3e2e8de55e70cf4714182bdd

SHA512
9f9a388c9b990a64db2e4f423d38c28a8a119234c34c1824d9201d33387406a8b4a6af0d6fe44209fe12463308fbc7b100b2a38a4c405da4c86e18cb7c53859a

Download Submit
memory/1580-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1580-18-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2584-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2584-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2584-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download