c35738e2c82657483c7d61be34503b636f4aeb2bf257361a38c7c5e72de8fbd3

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2024, 15:04

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General

Target

2024-05-11_f064d5eee51a4e3a082f728e096f44f3_cryptolocker.exe
Size

389KB
MD5

f064d5eee51a4e3a082f728e096f44f3
SHA1

142dde8cc7e33d6771dd668aa42da66897bd4370
SHA256

c35738e2c82657483c7d61be34503b636f4aeb2bf257361a38c7c5e72de8fbd3
SHA512

2522837dd424cc840e98edf1f0150da1660e8c0a8a16f8e6346c0a40b98a50ea14cf7e176b6ebac82961dc60c722e26bbcdc2f593ed50de28a834a748b7f996a
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXH:nnOflT/ZFIjBz3xjTxynGUOUhXH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-11_f064d5eee51a4e3a082f728e096f44f3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4920	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 4480 wrote to memory of 4920	4480	2024-05-11_f064d5eee51a4e3a082f728e096f44f3_cryptolocker.exe	82
PID 4480 wrote to memory of 4920	4480	2024-05-11_f064d5eee51a4e3a082f728e096f44f3_cryptolocker.exe	82
PID 4480 wrote to memory of 4920	4480	2024-05-11_f064d5eee51a4e3a082f728e096f44f3_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-11_f064d5eee51a4e3a082f728e096f44f3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_f064d5eee51a4e3a082f728e096f44f3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4920

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
a7cff839d3a130a7cdf4e1c09f844566

SHA1
da0ff5c042f849afa82ce9ef965a03b7d114841a

SHA256
05223756461bb11b73550a755c772422825243f7567039af0073ed7dab600145

SHA512
3e93e1a3e32e625d3aa9fbe014526c0640b5b72b67ef05b83185a38f4c1841079993f7303b6d4381044a42326302036721d94aedd7ea8bdf8610af543b4a8d5d

Download Submit
memory/4480-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4480-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4480-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4920-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4920-23-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download