ef57d3265cdf46f2cbb2fcae0089b8b2afd2c521972a561e8f2daf4d8b5a135e

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 19:04

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General

Target

2024-04-10_e4cf25279298ea6fc86b4d0395722166_cryptolocker.exe
Size

63KB
MD5

e4cf25279298ea6fc86b4d0395722166
SHA1

00ddd8e12958f6e122fa6fb227c66a1742d4ae03
SHA256

ef57d3265cdf46f2cbb2fcae0089b8b2afd2c521972a561e8f2daf4d8b5a135e
SHA512

d132403d966d57d191eee5899aa3d81d11044b9faa95dc424558fde8fb12700ba5ac2cbda1ff13fc615ce1b35c5b4b11b2203b8a3ed3f3648e2793890ead8113
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xblzod:X6a+SOtEvwDpjBrO8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2272	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2164	2024-04-10_e4cf25279298ea6fc86b4d0395722166_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 2164 wrote to memory of 2272	2164	2024-04-10_e4cf25279298ea6fc86b4d0395722166_cryptolocker.exe	28
PID 2164 wrote to memory of 2272	2164	2024-04-10_e4cf25279298ea6fc86b4d0395722166_cryptolocker.exe	28
PID 2164 wrote to memory of 2272	2164	2024-04-10_e4cf25279298ea6fc86b4d0395722166_cryptolocker.exe	28
PID 2164 wrote to memory of 2272	2164	2024-04-10_e4cf25279298ea6fc86b4d0395722166_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_e4cf25279298ea6fc86b4d0395722166_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_e4cf25279298ea6fc86b4d0395722166_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2272

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
63KB

MD5
68336ae2504cf6ef65eee57280eef667

SHA1
4eb029f0921512ff2096c1f756a19a883634f3c3

SHA256
a375e5d76eb2532269fe132e82a1e3784e266e319b4ccf6bbbc88519fa61a529

SHA512
ad36e34659a56f415820c7026288f7ad8dce57874f5fbf977c97bf9cd7e528383c752fcb8f9c87fed23c7960f79e2f56c6aa552889cf9ae2dc6d5f30f1c62be8

Download Submit
memory/2164-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2164-2-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2164-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2272-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2272-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download