6e5035dfa361e9141bc5f4056029d44641bde905c930ed1c36d41fbc82f18023

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21-04-2024 07:31

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General

Target

2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe
Size

84KB
MD5

6aef214bc091152a20e102dd81259ca2
SHA1

76cf533ea46c58df6d8ae3487dbdcf5d18c9f06d
SHA256

6e5035dfa361e9141bc5f4056029d44641bde905c930ed1c36d41fbc82f18023
SHA512

df518998ac10fd5e0cf6a7ca4bd3b40f47e8b6f06530b25997de6d8165aae1e5638407b791c76082ba4b281f5e0fef6f8b8edb2cd128aa39a70979a9291b6755
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnYZ:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012253-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012253-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2856	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2088	2024-04-21_6aef214bc091152a20e102dd81259ca2_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 2088 wrote to memory of 2856	2088	2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe	28
PID 2088 wrote to memory of 2856	2088	2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe	28
PID 2088 wrote to memory of 2856	2088	2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe	28
PID 2088 wrote to memory of 2856	2088	2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_6aef214bc091152a20e102dd81259ca2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2856

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
85KB

MD5
29e73636708ffeafc0bf62ff5b7cee7c

SHA1
58503f8e8e11c84e7647ea4285101be9a196fb96

SHA256
8de3f18b4682eea0e939821f2d4f80bf2714abcb977088edc97e328673d2ee92

SHA512
179f4c814c8b5e4d7dd14244eb70bb4de56220dceea82c7edd714cce10f70765b7638167015aa2b6c2816bc5c22ee4322d660e8aa89c09480e3bac5972608af9

Download Submit
memory/2088-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2088-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2088-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2856-15-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2856-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download