a084c3bd9d7f6446e818a79880ac6dbdc7aad3675df2422fb7f9bddfe4c58c7a

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/04/2024, 07:53

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General

Target

2024-04-11_dfc2e19058f25f970d2c02084e14e5fc_cryptolocker.exe
Size

73KB
MD5

dfc2e19058f25f970d2c02084e14e5fc
SHA1

cea4909c114cffe8afd49508407077c5bf4896ca
SHA256

a084c3bd9d7f6446e818a79880ac6dbdc7aad3675df2422fb7f9bddfe4c58c7a
SHA512

6b6f6945c4a02739f0c38acd7dabfee417c52b26c90fc6893be903a72b3cbc1a898ac12ff9971471c8b3d231e6c62f79b4a17b8b9ea01d8f93ef38d417037c07
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsu:X6a+SOtEvwDpjBZYvQd2F

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3024	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2276	2024-04-11_dfc2e19058f25f970d2c02084e14e5fc_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 2276 wrote to memory of 3024	2276	2024-04-11_dfc2e19058f25f970d2c02084e14e5fc_cryptolocker.exe	28
PID 2276 wrote to memory of 3024	2276	2024-04-11_dfc2e19058f25f970d2c02084e14e5fc_cryptolocker.exe	28
PID 2276 wrote to memory of 3024	2276	2024-04-11_dfc2e19058f25f970d2c02084e14e5fc_cryptolocker.exe	28
PID 2276 wrote to memory of 3024	2276	2024-04-11_dfc2e19058f25f970d2c02084e14e5fc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-11_dfc2e19058f25f970d2c02084e14e5fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_dfc2e19058f25f970d2c02084e14e5fc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3024

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
73KB

MD5
262322ea7e9f7435840474f6d938b921

SHA1
f1973f3e953a26c63032026528605b72ccab5bfb

SHA256
6d2390b504c5bed0f51cb27dd53c6177f82a4633a42a53f91a4370d6169c9dbb

SHA512
3912cb522c991aa0f30c9f138fc73bdb1794c856990f05fd8e7d3a8b23246fc075d7cc45cc5ea9dc50e1e0bb8faad19eb6598558d000e92cf8dd909f0822ed54

Download Submit
memory/2276-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2276-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2276-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3024-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/3024-16-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download