58d6bd2f09570e530cf539b8e261ba70fb10933a5d6782f8cebfcd34cc684542

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 20:27

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General

Target

2024-01-24_ad464cc5f463e9cb47f18f722bb22681_cryptolocker.exe
Size

60KB
MD5

ad464cc5f463e9cb47f18f722bb22681
SHA1

b904deed78b2f753adc79af6604cd62a30e2f562
SHA256

58d6bd2f09570e530cf539b8e261ba70fb10933a5d6782f8cebfcd34cc684542
SHA512

574236085b192b957809c2d1d1c1f23251ca70b576491c119dd697b7efa39ee399639a6812719c64eec2fbf788a9b624d7b48121041bd3b6f05feda54444b0cb
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmhkp:V6a+pOtEvwDpjv4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ee-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231ee-12.dat	CryptoLocker_set1

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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-01-24_ad464cc5f463e9cb47f18f722bb22681_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
652	asih.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 2340 wrote to memory of 652	2340	2024-01-24_ad464cc5f463e9cb47f18f722bb22681_cryptolocker.exe	87
PID 2340 wrote to memory of 652	2340	2024-01-24_ad464cc5f463e9cb47f18f722bb22681_cryptolocker.exe	87
PID 2340 wrote to memory of 652	2340	2024-01-24_ad464cc5f463e9cb47f18f722bb22681_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-24_ad464cc5f463e9cb47f18f722bb22681_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_ad464cc5f463e9cb47f18f722bb22681_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:652

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\asih.exe

Filesize
60KB

MD5
c9fe76cb56080e854376407259ab11f0

SHA1
b9c1b1f0dd3c5799881dbd128ec0e0afc07294fe

SHA256
f9ad00fd9b65255e13807ac4418314f187a0ada316ed4e448f55beeb877354b9

SHA512
aed8e35ddf37288c70eda380989325d01406e337854b720e7307218faa149d7cb8785ae5a49c46ddc340add833a36f558d621822f2d4d6b316a9d364a169def9

Download Submit
memory/652-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/652-21-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2340-0-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/2340-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/2340-2-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download