9fcbf62a1923bf992fd4e0faba0e81945fa8bfd0ff30b060a10c46be9a69dfe0

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 02:39

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General

Target

2024-03-29_2ab576b9b03cca762a9b8ccee2b29e9c_cryptolocker.exe
Size

70KB
MD5

2ab576b9b03cca762a9b8ccee2b29e9c
SHA1

410794f3d7d80ef85ca4843106b8ed1c7cbf37cf
SHA256

9fcbf62a1923bf992fd4e0faba0e81945fa8bfd0ff30b060a10c46be9a69dfe0
SHA512

24c2cd9a40d9d61ff52d5b17f686dad634953c612da40ae0bdc289cbe3d7917e7ac42a60461d099bbcd99ace3a4b0f9700d64125f4a0cb8c375a8d42a1b5a664
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO7:DW60sllyWOtEvwDpjwF85c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/3024-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/3024-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/3024-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/3024-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3024	2024-03-29_2ab576b9b03cca762a9b8ccee2b29e9c_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 3024 wrote to memory of 2056	3024	2024-03-29_2ab576b9b03cca762a9b8ccee2b29e9c_cryptolocker.exe	28
PID 3024 wrote to memory of 2056	3024	2024-03-29_2ab576b9b03cca762a9b8ccee2b29e9c_cryptolocker.exe	28
PID 3024 wrote to memory of 2056	3024	2024-03-29_2ab576b9b03cca762a9b8ccee2b29e9c_cryptolocker.exe	28
PID 3024 wrote to memory of 2056	3024	2024-03-29_2ab576b9b03cca762a9b8ccee2b29e9c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_2ab576b9b03cca762a9b8ccee2b29e9c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_2ab576b9b03cca762a9b8ccee2b29e9c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2056

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
71KB

MD5
5a845c4bf1e7efcc09a280d342a9db44

SHA1
42eb214080a52ea30c095dee7c215c1a5f1cf29e

SHA256
599291f1d8997a9f8758b4343dd21f91c30f04248a36efbb68658c5dcb66d165

SHA512
30f34723ad71c0cdcf0309c646de6682811d9fc2495c2eb6c058bde9af0ffaa99c52c5d7b0a12fd613a0035add7607112a886bffc1267bea5bc9f1580708ade4

Download Submit
memory/2056-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3024-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3024-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3024-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3024-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3024-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download