f89cecd7d8e5e34e6f46ff63a1536052a4989b22a0fc544bde6c2f40ca5572e5

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04/05/2024, 05:04

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General

Target

2024-05-04_eb3e64cf681530dc217606bd80432bfa_cryptolocker.exe
Size

35KB
MD5

eb3e64cf681530dc217606bd80432bfa
SHA1

7a5ec5ba110f11a2ca8a7525f5f876da10bf860a
SHA256

f89cecd7d8e5e34e6f46ff63a1536052a4989b22a0fc544bde6c2f40ca5572e5
SHA512

67a9b5d0eccd11646dd3986837c175d47eda3fdb8ed68fb8389e420dc57c93d6621f3f46fb78cb9cec35c101596b1b7c5a19900be87bf3a37061337b2668768f
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lx+s:bA74zYcgT/Ekd0ryfjPIunqpeNswm6+s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b49-12.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-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	2024-05-04_eb3e64cf681530dc217606bd80432bfa_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2536	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 4632 wrote to memory of 2536	4632	2024-05-04_eb3e64cf681530dc217606bd80432bfa_cryptolocker.exe	84
PID 4632 wrote to memory of 2536	4632	2024-05-04_eb3e64cf681530dc217606bd80432bfa_cryptolocker.exe	84
PID 4632 wrote to memory of 2536	4632	2024-05-04_eb3e64cf681530dc217606bd80432bfa_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-04_eb3e64cf681530dc217606bd80432bfa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_eb3e64cf681530dc217606bd80432bfa_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2536

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
35KB

MD5
dabfcd295badba08b8738b58e6eb8c8a

SHA1
bc3e7b08c87e7b9094d2bae96a0b85393f1de035

SHA256
20a3106343d4ee2e503bcb42cb9e305404a2fb7e7841a771c6a0fe04bfcab1b7

SHA512
02e849b0446c4306796f368b09b3efd853d1e8b4bf9ff2c5f746a343af419ef83b252f1e99cd0ccc90c15e9a8c9c017eb1aeb4262e57df24aee2e2435feabadc

Download Submit
memory/2536-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4632-0-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/4632-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4632-8-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download