6f3c3e58647a3d22b76200e5455860af444ad0700336eddc855a7e2ae0d2fc6d

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 07:43

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General

Target

2024-02-23_948e154fe35275569e40b95b10b3b5b8_cryptolocker.exe
Size

38KB
MD5

948e154fe35275569e40b95b10b3b5b8
SHA1

33030bf79596579e3861084a2440bc0705b3e1ad
SHA256

6f3c3e58647a3d22b76200e5455860af444ad0700336eddc855a7e2ae0d2fc6d
SHA512

a5be72f41becd8c09d7161984dfcf2d401bd00d1b6d6fd6ae9525b9d44e33b8763b2ebea8eeb504cf8cf3c325dbacda88b2204c0904ea789609012b5750e2893
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHu8K7:X6QFElP6n+gJQMOtEvwDpjBmzDkz7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012252-10.dat	CryptoLocker_rule2
behavioral1/files/0x000b000000012252-21.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012252-10.dat	CryptoLocker_set1
behavioral1/files/0x000b000000012252-21.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2024	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2256	2024-02-23_948e154fe35275569e40b95b10b3b5b8_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 2256 wrote to memory of 2024	2256	2024-02-23_948e154fe35275569e40b95b10b3b5b8_cryptolocker.exe	28
PID 2256 wrote to memory of 2024	2256	2024-02-23_948e154fe35275569e40b95b10b3b5b8_cryptolocker.exe	28
PID 2256 wrote to memory of 2024	2256	2024-02-23_948e154fe35275569e40b95b10b3b5b8_cryptolocker.exe	28
PID 2256 wrote to memory of 2024	2256	2024-02-23_948e154fe35275569e40b95b10b3b5b8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_948e154fe35275569e40b95b10b3b5b8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_948e154fe35275569e40b95b10b3b5b8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2024

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
11KB

MD5
da8fb8dadad31a9d6c95aaad8988ceef

SHA1
8de7f79f914fbbc31751ad050a4846512b6f05f8

SHA256
df900ea45afbbf0ae7e5d6b4376620ce99da6e087f471524e638bd41caa7a772

SHA512
2cf98dffb29bc3744b9b567e50bc3decd7cc39ccd5b268017dff0f13beb63d1539390bdffa81b7df67d8d5ff0346b8244fdc4d3210f94b08d314c96daa1eb873

Download Submit
\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
38KB

MD5
22518f855acbc29f68773aca2d2b8d0f

SHA1
172c96bec7b9cf27136732d64678feb4066be1a9

SHA256
9e9a6fbdc0f4fe97fe02499a4e20caf9b8f169131f5ed28a705803d766119785

SHA512
8cd22126d58b7391306f2b9e5d771a1d2ebebc31db9380b515f7ae4deca0d492fcadbf9ac872de589fbc136c1a2a71d5cb71c7bc26559369dc7f344a2f4a1a83

Download Submit
memory/2024-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2024-22-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2256-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2256-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2256-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download