73a662bd953f7bd9bee50af21e52a502d6b8583b20a3341abf1d645e8e7cb120

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 08:08

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General

Target

2024-02-14_b3264fae6eb4e1eb4ed3443e9dacd955_cryptolocker.exe
Size

37KB
MD5

b3264fae6eb4e1eb4ed3443e9dacd955
SHA1

7eabce55043607de28db02305634565dfc65dbc1
SHA256

73a662bd953f7bd9bee50af21e52a502d6b8583b20a3341abf1d645e8e7cb120
SHA512

aa09ef19027d5f1d96735503a37a747bb37ac1b9be0ce172fd28706170f616fbaffb2a0de6561ca724f83427f201c7361d02c48c910a096e678cd70990d0d2c6
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuZ:X6QFElP6n+gJQMOtEvwDpjBmzDkZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c46-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c46-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2044	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2988	2024-02-14_b3264fae6eb4e1eb4ed3443e9dacd955_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 2988 wrote to memory of 2044	2988	2024-02-14_b3264fae6eb4e1eb4ed3443e9dacd955_cryptolocker.exe	28
PID 2988 wrote to memory of 2044	2988	2024-02-14_b3264fae6eb4e1eb4ed3443e9dacd955_cryptolocker.exe	28
PID 2988 wrote to memory of 2044	2988	2024-02-14_b3264fae6eb4e1eb4ed3443e9dacd955_cryptolocker.exe	28
PID 2988 wrote to memory of 2044	2988	2024-02-14_b3264fae6eb4e1eb4ed3443e9dacd955_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_b3264fae6eb4e1eb4ed3443e9dacd955_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_b3264fae6eb4e1eb4ed3443e9dacd955_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2044

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
38KB

MD5
39df653405dd2cb1226345562288e2ea

SHA1
871cb0a45ac84964c07d7db95d1698d1527c54a9

SHA256
ace02638f9e719cc387c0a21cf024f2c7296df63d4cfc13f67ca9c08a4a49bd3

SHA512
cb8eb79bf96043b76de2ad7f29d72afcccf537a959e505528cd71fdf2233e6c019f60492aa84972edf19617b0a11eb790ff0cd44a63f23b5f5b9366b5448a506

Download Submit
memory/2044-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2044-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2988-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2988-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2988-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download