7e11f7a883c6e8d2bdbf27574d4ccfa1866656bd914833af8ad08af757e0bd5f

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05/04/2024, 02:41

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General

Target

2024-04-05_7c8e0c1706ace23cf7ff47c31539eb3a_cryptolocker.exe
Size

36KB
MD5

7c8e0c1706ace23cf7ff47c31539eb3a
SHA1

162536636a535e90985bf4bdddd27e0e6ead3545
SHA256

7e11f7a883c6e8d2bdbf27574d4ccfa1866656bd914833af8ad08af757e0bd5f
SHA512

ff8846f09a619b6c8fbc3108183e4a45ba437aad5276a23c11647e48803c25bb5a6b242909410c3453ad43f9d827d1b2d7272807354357cc37f52e778b4f7409
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lmRh:bA74zYcgT/Ekd0ryfjPIunqpeNswm9n

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231fb-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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-04-05_7c8e0c1706ace23cf7ff47c31539eb3a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2072	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 1116 wrote to memory of 2072	1116	2024-04-05_7c8e0c1706ace23cf7ff47c31539eb3a_cryptolocker.exe	86
PID 1116 wrote to memory of 2072	1116	2024-04-05_7c8e0c1706ace23cf7ff47c31539eb3a_cryptolocker.exe	86
PID 1116 wrote to memory of 2072	1116	2024-04-05_7c8e0c1706ace23cf7ff47c31539eb3a_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-05_7c8e0c1706ace23cf7ff47c31539eb3a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_7c8e0c1706ace23cf7ff47c31539eb3a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2072

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
36KB

MD5
6aaeca358cd33bdeb048d590f4f353e9

SHA1
4c877669b8a1964a34218c2804d2a056e3d2012f

SHA256
3ef9b04e714f3822bb1fb1b779b2655a1a0ff943e9dc175d014ddeb365a23afa

SHA512
418be18017378bc27d6dd313aaca48491770f34f0a79b7b090cd093b7e611b4fd676427f0bf41720bee828975f5cead04c6262a933185cba3e10ea2dbdefae76

Download Submit
memory/1116-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/1116-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/1116-2-0x0000000002500000-0x0000000002506000-memory.dmp

Filesize
24KB

Download
memory/2072-17-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/2072-18-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download