0c4fb7cfd8c792f82ae9b42c62f937eabcb68ef6b5d38b2dd3b73321e2a5d163

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27-01-2024 05:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-27_f0434ed96e912f6b5e6f9d255635df54_cryptolocker.exe
Size

43KB
MD5

f0434ed96e912f6b5e6f9d255635df54
SHA1

2d11d367324a048e5d614fbcd6af4bd1ecd41a4b
SHA256

0c4fb7cfd8c792f82ae9b42c62f937eabcb68ef6b5d38b2dd3b73321e2a5d163
SHA512

4e5ac8b70decf2edf5a483a7ab4fa1a55bd1ab065fae6fe9d3ec00960f6943b786d03a5797a3b1de9451ffa219c4ed593f9a05125303a99739cae0a5a5d7281c
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvcjpf:79mqyNhQMOtEvwDpjBzckK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001232d-11.dat	CryptoLocker_rule2
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001232d-11.dat	CryptoLocker_set1
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2828	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-01-27_f0434ed96e912f6b5e6f9d255635df54_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 2240 wrote to memory of 2828	2240	2024-01-27_f0434ed96e912f6b5e6f9d255635df54_cryptolocker.exe	28
PID 2240 wrote to memory of 2828	2240	2024-01-27_f0434ed96e912f6b5e6f9d255635df54_cryptolocker.exe	28
PID 2240 wrote to memory of 2828	2240	2024-01-27_f0434ed96e912f6b5e6f9d255635df54_cryptolocker.exe	28
PID 2240 wrote to memory of 2828	2240	2024-01-27_f0434ed96e912f6b5e6f9d255635df54_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_f0434ed96e912f6b5e6f9d255635df54_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_f0434ed96e912f6b5e6f9d255635df54_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2828

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

Loading Replay Monitor...

Downloads

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

Filesize
43KB

MD5
e7e45cde7bce67687bf26a47259f0cbf

SHA1
72f3a721a399e2168307b119f5784968bea76b66

SHA256
6573ee0cff3ae158062cba75a8f40b6143a3ba0143a47514b1b6885e82a094dd

SHA512
110e8e82d084094619f00e3206c6ba3c4b682b53e1c9702aed50923401339cb51ea9bb67bcc8fb3f7d27a1ef496210a1cfd7b9031a56cd58ac03c3bee2001e1c

Download Submit
memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2240-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-3-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2828-17-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2828-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download