b67e3989f773c88e8aa4efd28cbbbb39f35e9a4f3eed9f800b36b1fba77696c8

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 17:23

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General

Target

2024-02-12_0767a00152746bd4a3e448363b341a18_cryptolocker.exe
Size

74KB
MD5

0767a00152746bd4a3e448363b341a18
SHA1

baf9904e9ea1f0c4a13a21044360398ce445dbb2
SHA256

b67e3989f773c88e8aa4efd28cbbbb39f35e9a4f3eed9f800b36b1fba77696c8
SHA512

8c01e70368407c26e2dc04df0be00dc67dcbe5b315fa97225dee2d3d32753459c871a5cfaa0f3bbd22283d97eadb6eb05eabd882f24a52a0ece2d1bb626d965c
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1eWe:X6a+SOtEvwDpjBZYvQd2e

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2288	2024-02-12_0767a00152746bd4a3e448363b341a18_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 2288 wrote to memory of 2032	2288	2024-02-12_0767a00152746bd4a3e448363b341a18_cryptolocker.exe	28
PID 2288 wrote to memory of 2032	2288	2024-02-12_0767a00152746bd4a3e448363b341a18_cryptolocker.exe	28
PID 2288 wrote to memory of 2032	2288	2024-02-12_0767a00152746bd4a3e448363b341a18_cryptolocker.exe	28
PID 2288 wrote to memory of 2032	2288	2024-02-12_0767a00152746bd4a3e448363b341a18_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_0767a00152746bd4a3e448363b341a18_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_0767a00152746bd4a3e448363b341a18_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2032

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
74KB

MD5
b95f69d3dc48e4332d25f36295374549

SHA1
99a20bd79326038b32ac1de98ff3c142c2356f95

SHA256
1bbdfdba6bf74159ca519b8c457e2f8a929eb1c705f80b40dcfa11c38ac0cbb4

SHA512
eadda33355084ae6327ba16301ef9a4041bc2a0e296ab3234a4b8517457967565500b9be73e3c80ba8eec8ffecc8bc3f2f9ceec09686f79b189117a0e8c31a76

Download Submit
memory/2032-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2032-17-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2288-0-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2288-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2288-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download