92c52003e3f3476c3ba1fa0499586c26ecdb7ce26c64f5ddd931a67b1bb2ddd0

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 16:46

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General

Target

2024-02-14_c96de41ea40e0201c8763ea19adb19d2_cryptolocker.exe
Size

47KB
MD5

c96de41ea40e0201c8763ea19adb19d2
SHA1

261ce028ed4e8c8104cce4afe88cecb755f5a0ac
SHA256

92c52003e3f3476c3ba1fa0499586c26ecdb7ce26c64f5ddd931a67b1bb2ddd0
SHA512

f4758c391df0621045b50a1da08bd59744e086f7dce27ab2bfafd8abd5dc46a821a82c419b0877c6c69370948f842a6be0d85492c253fe91facfb13a1d419378
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3wwsr0j:X6QFElP6n+gJQMOtEvwDpjBDg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023164-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023164-12.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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-14_c96de41ea40e0201c8763ea19adb19d2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1412	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 3764 wrote to memory of 1412	3764	2024-02-14_c96de41ea40e0201c8763ea19adb19d2_cryptolocker.exe	84
PID 3764 wrote to memory of 1412	3764	2024-02-14_c96de41ea40e0201c8763ea19adb19d2_cryptolocker.exe	84
PID 3764 wrote to memory of 1412	3764	2024-02-14_c96de41ea40e0201c8763ea19adb19d2_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-14_c96de41ea40e0201c8763ea19adb19d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_c96de41ea40e0201c8763ea19adb19d2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3764
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1412

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
47KB

MD5
e3eba6bd78ab8e4a6ae5cd440a632562

SHA1
303c503cd780227c41b0ae818751c2f793d0b483

SHA256
56836cc870efb1166b083731d6b90b0affecef32ddc6457e84d1e4caaaff52d7

SHA512
308263b8c1774c34241c1c7fa2367d146e4d2c34f76fd78d4d51ed73ff12f78c8b9e38f61558a46671f6affa5f4d37c18c274752c5733d8d35da8efcf1b336d9

Download Submit
memory/1412-19-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1412-17-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3764-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3764-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3764-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download