233d172c06b550ec6db7ecb26cf0ba473775a35a4e6d1b673e5c12eb447fb9c6

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
20-04-2024 16:59

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General

Target

2024-04-20_cb2a37058d948893c7bbe4a359e63235_cryptolocker.exe
Size

40KB
MD5

cb2a37058d948893c7bbe4a359e63235
SHA1

4d99f6159931ca352cc2945604f1d47518079608
SHA256

233d172c06b550ec6db7ecb26cf0ba473775a35a4e6d1b673e5c12eb447fb9c6
SHA512

a920334c270eb3994ce14815fb14479981a96b106255f11fa6faccc3e7d607816c4d0aac8edecfc303db9c113a7e940c65aaf424465c18d569d73995074d72fb
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axRVZP:V6QFElP6n+gMQMOtEvwDpjyaYaLP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012252-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012252-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2456	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2108	2024-04-20_cb2a37058d948893c7bbe4a359e63235_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 2108 wrote to memory of 2456	2108	2024-04-20_cb2a37058d948893c7bbe4a359e63235_cryptolocker.exe	28
PID 2108 wrote to memory of 2456	2108	2024-04-20_cb2a37058d948893c7bbe4a359e63235_cryptolocker.exe	28
PID 2108 wrote to memory of 2456	2108	2024-04-20_cb2a37058d948893c7bbe4a359e63235_cryptolocker.exe	28
PID 2108 wrote to memory of 2456	2108	2024-04-20_cb2a37058d948893c7bbe4a359e63235_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-20_cb2a37058d948893c7bbe4a359e63235_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_cb2a37058d948893c7bbe4a359e63235_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2456

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
40KB

MD5
1ee96bfe6dbd1dbc3bed15bcdf51b36e

SHA1
72a8ffcd31e6ce1d9a11d47e3c299d2ddd6e577a

SHA256
e9d1bdcacd8105ac74938ae02609efa0ead54822572f390e995ee83e0820caa6

SHA512
86a6e4a1dd1ac506c8a71ec1c3be0ba3b0a5ca345b0013ce6d5e76ee7fee8ce1cb00ec2c9063839daa989c55c4794ad0f6312b9e9d56acd1fd9904c82a9cd8ed

Download Submit
memory/2108-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2108-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2108-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2456-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download