dedfb357ebc86f411656b2703a5a3599173b2214021200ffd31188bfe05acfe5

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 23:29

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General

Target

2024-02-24_a56cb80c92601a6fd5c0ff3c5ff61eb6_cryptolocker.exe
Size

38KB
MD5

a56cb80c92601a6fd5c0ff3c5ff61eb6
SHA1

a69ba28c3fc8c8e368491d85af0ed22e132bfe1e
SHA256

dedfb357ebc86f411656b2703a5a3599173b2214021200ffd31188bfe05acfe5
SHA512

88535982624db6c9174734d3602f75932a0585b665dcbeebec36ee38419538aa811b0e200d357d876ce071afbed44b6a26d0915a6d11478e5c9ce1461902ba91
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfXE:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e96f-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-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation	2024-02-24_a56cb80c92601a6fd5c0ff3c5ff61eb6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2352	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 2352	4480	2024-02-24_a56cb80c92601a6fd5c0ff3c5ff61eb6_cryptolocker.exe	88
PID 4480 wrote to memory of 2352	4480	2024-02-24_a56cb80c92601a6fd5c0ff3c5ff61eb6_cryptolocker.exe	88
PID 4480 wrote to memory of 2352	4480	2024-02-24_a56cb80c92601a6fd5c0ff3c5ff61eb6_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-24_a56cb80c92601a6fd5c0ff3c5ff61eb6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_a56cb80c92601a6fd5c0ff3c5ff61eb6_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:2352

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
38KB

MD5
8aeee008a83db8d018b0614ea7ebbd82

SHA1
9f86d9ad07687a7c539da7e162fcbd1f8a253c37

SHA256
36f38a8bff6eac1b88aeb02bec5b94175e6fbe66ca038cc05b58d3bc334a458c

SHA512
7ef87af28b514473cbb0a6662462d16c0069f4a8079990433bfa852358c639e74d1b2dc67db3b489127a2368d4a350e57382822ef187a70e1a41ec6bc0867756

Download Submit
memory/2352-19-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2352-17-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4480-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4480-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4480-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download