ca23dc265745a24a04818ea399d8370de141cbecea4e890fe3c9c7af94c47e1f

Analysis

max time kernel
154s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2024, 07:52

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General

Target

2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe
Size

50KB
MD5

911d1da623b309284744f61c0cd32dd0
SHA1

f6a0f1136cf8eaf5f4a61cced165d056f84eb06e
SHA256

ca23dc265745a24a04818ea399d8370de141cbecea4e890fe3c9c7af94c47e1f
SHA512

31e2a29de880e6c7d686990d885a50f4fa8600e0be811951b7f0fdd949b8b231492390b9e8db394e0ad2d0fc170b26778a87db26a893cfb7b96007d342650b48
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSO/G:bgGYcA/53GAA6y37Q6dI+d5GG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023236-12.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4780	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 444 wrote to memory of 4780	444	2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe	87
PID 444 wrote to memory of 4780	444	2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe	87
PID 444 wrote to memory of 4780	444	2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:444
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4780

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
50KB

MD5
5cf505422d8c922d060bb2c5baf692e7

SHA1
78012634ad50fa3600bc4ac9e4fb1ca13b0fd97f

SHA256
fcf5245846cf65b09ff6ec4e4eaf4a573210a942c577f34077c55ab53bbaac45

SHA512
deaca76b94c08364e0d5042ea4d0d6c2a57ce5b2f9ab0da7ef511f09b70e4546acefdca0a1175d9d9843dbe57c04482d4b108a6444668b3da7b9168ac2bb5916

Download Submit
memory/444-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/444-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/444-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4780-17-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4780-23-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download