120a7ed20a3cd2e8633555eb8c54a02e8fc5fec0e79211a515bac0f9af0e9390

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 12:57

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General

Target

2024-03-25_bd5b9e293ebde9936211261b70cd6dbf_cryptolocker.exe
Size

47KB
MD5

bd5b9e293ebde9936211261b70cd6dbf
SHA1

5de2b020eb1bf2fd57fde5bc09cee3d364a4b646
SHA256

120a7ed20a3cd2e8633555eb8c54a02e8fc5fec0e79211a515bac0f9af0e9390
SHA512

09c0aa8c5f3aefe13a72b5a6575cd032db024838b9d3b33969409085ef1da58b0659011ed1d154e7c557bc94cd7b1ddc35c52697e23cdc477bf594932dbe19f3
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556Blv0:X6QFElP6n+gJQMOtEvwDpjB0GIWSlv0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2148	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	2024-03-25_bd5b9e293ebde9936211261b70cd6dbf_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 2868 wrote to memory of 2148	2868	2024-03-25_bd5b9e293ebde9936211261b70cd6dbf_cryptolocker.exe	28
PID 2868 wrote to memory of 2148	2868	2024-03-25_bd5b9e293ebde9936211261b70cd6dbf_cryptolocker.exe	28
PID 2868 wrote to memory of 2148	2868	2024-03-25_bd5b9e293ebde9936211261b70cd6dbf_cryptolocker.exe	28
PID 2868 wrote to memory of 2148	2868	2024-03-25_bd5b9e293ebde9936211261b70cd6dbf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-25_bd5b9e293ebde9936211261b70cd6dbf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_bd5b9e293ebde9936211261b70cd6dbf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2148

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
47KB

MD5
07696074316244359c97f68844b0c8bb

SHA1
702189f38d5e517e646d8497410d8a0c2366b53d

SHA256
4732743fd840b7004146ddf9e79b2874a08e988c769876e1ed88749cb5f76f46

SHA512
044825172fe5bbd1bc7537197ba5b6f65c3b6101db664fdc31f09d717ee041affc44cba78f83989fa413d459ab56f401619fb7bb33e1fb8e6fa0a5b8f573e2c6

Download Submit
memory/2148-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2148-22-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2868-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2868-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2868-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download