24fbb8f5ea060cc6220306d8a53987eaf60f9809bf03f2b95a45b27ea0d2c6cc

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18/03/2024, 22:38

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General

Target

2024-03-18_af523b84faed36747a810ac0237402fb_cryptolocker.exe
Size

96KB
MD5

af523b84faed36747a810ac0237402fb
SHA1

d881f494c23580269807b85218a04898e405ad7e
SHA256

24fbb8f5ea060cc6220306d8a53987eaf60f9809bf03f2b95a45b27ea0d2c6cc
SHA512

5f7d9a23ccd4dc47cadd33ac5b2fe05e6c04976de42f20645461a2e1ed2eeb08b257db6b19aa1b71b7814180fb16a386e7bf0bd2c52a13a4fba0e0ca831b1ad0
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpUF:V6a+pOtEvwDpjtz3

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
2336	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1948	2024-03-18_af523b84faed36747a810ac0237402fb_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 1948 wrote to memory of 2336	1948	2024-03-18_af523b84faed36747a810ac0237402fb_cryptolocker.exe	28
PID 1948 wrote to memory of 2336	1948	2024-03-18_af523b84faed36747a810ac0237402fb_cryptolocker.exe	28
PID 1948 wrote to memory of 2336	1948	2024-03-18_af523b84faed36747a810ac0237402fb_cryptolocker.exe	28
PID 1948 wrote to memory of 2336	1948	2024-03-18_af523b84faed36747a810ac0237402fb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-18_af523b84faed36747a810ac0237402fb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_af523b84faed36747a810ac0237402fb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2336

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
96KB

MD5
28ce5d6a2d43f2fedc03931de0eaacee

SHA1
c516114f9b893582856d98fd68f72b560a838e7c

SHA256
55e4ca6ab3a7f21d354dfb372b99b79afcce5b873c44f38f7ffc22f0f760d07b

SHA512
883cb6bc8ee6890d254747647a5704bcb4360f31c52e5d2d6f5f0265c1cb13a2556049a1efe70b6cc97b233084117942f650ebb65780583e26f6ca2491ae4a3c

Download Submit
memory/1948-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1948-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1948-7-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2336-16-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2336-15-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download