51f74b38455ed0f1ee9e1408ce988d2d3fd732e8bdc32ee1e40648a951fc78bd

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 03:32

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General

Target

2024-05-08_7734bbd1982271c9b94e3f59e99fad3b_cryptolocker.exe
Size

51KB
MD5

7734bbd1982271c9b94e3f59e99fad3b
SHA1

215622fd097224e101631c770fb26a27ad124c87
SHA256

51f74b38455ed0f1ee9e1408ce988d2d3fd732e8bdc32ee1e40648a951fc78bd
SHA512

45de0f1218b411550bb04a776e0d14b9612eaa353c13fca775554ab0cc8e64835e7748c39909f454cd65f7b3e51c0883605736e2fc7ab7ca23225e4aeace5d62
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaf2A:X6QFElP6n+gJBMOtEvwDpjBtExmln2A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000149f5-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000149f5-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3016	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2896	2024-05-08_7734bbd1982271c9b94e3f59e99fad3b_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 3016	2896	2024-05-08_7734bbd1982271c9b94e3f59e99fad3b_cryptolocker.exe	28
PID 2896 wrote to memory of 3016	2896	2024-05-08_7734bbd1982271c9b94e3f59e99fad3b_cryptolocker.exe	28
PID 2896 wrote to memory of 3016	2896	2024-05-08_7734bbd1982271c9b94e3f59e99fad3b_cryptolocker.exe	28
PID 2896 wrote to memory of 3016	2896	2024-05-08_7734bbd1982271c9b94e3f59e99fad3b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-08_7734bbd1982271c9b94e3f59e99fad3b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-08_7734bbd1982271c9b94e3f59e99fad3b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
52KB

MD5
e9a463b3a64881abea86415e6dee27d7

SHA1
7f4015c95a819257b9f7123e82b96250ed21c632

SHA256
463373d2908b418c69189a8620c16d492b91d4de34a671595838a18683dbeb55

SHA512
e5ab92391390dc1ba9756438a700d4dd098e5a88f87dbf8bda1fa2b36f6000aebd9be0ba6d8452ffcf62dc88ba28d35c393e6c6048da8578ca99052392235d04

Download Submit
memory/2896-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2896-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2896-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3016-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/3016-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download