f31f2fc5b418098f3c390060bf51e75798470a2a7492ac1dee022b49b7233b6a

Analysis

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

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
06/04/2024, 04:26

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General

Target

2024-04-06_0ccee982e38c2ec130d82584f16f74c7_cryptolocker.exe
Size

50KB
MD5

0ccee982e38c2ec130d82584f16f74c7
SHA1

07e033192643abae40e3ab3ce1aa70ef079724b6
SHA256

f31f2fc5b418098f3c390060bf51e75798470a2a7492ac1dee022b49b7233b6a
SHA512

835224fbaac982c7784fc89099927df1b32b3968f17b5b7cf39d29d97d163ff71ef1be764f22c5b056ee417a383c4c92fed41e88a118063d0ce52dca022ddd4d
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRDPF:79mqyNhQMOtEvwDpjBxe8TpXRh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1776-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012248-11.dat	CryptoLocker_rule2
behavioral1/memory/1776-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1776-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012248-11.dat	CryptoLocker_set1
behavioral1/memory/1776-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3048	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1776	2024-04-06_0ccee982e38c2ec130d82584f16f74c7_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 1776 wrote to memory of 3048	1776	2024-04-06_0ccee982e38c2ec130d82584f16f74c7_cryptolocker.exe	28
PID 1776 wrote to memory of 3048	1776	2024-04-06_0ccee982e38c2ec130d82584f16f74c7_cryptolocker.exe	28
PID 1776 wrote to memory of 3048	1776	2024-04-06_0ccee982e38c2ec130d82584f16f74c7_cryptolocker.exe	28
PID 1776 wrote to memory of 3048	1776	2024-04-06_0ccee982e38c2ec130d82584f16f74c7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-06_0ccee982e38c2ec130d82584f16f74c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-06_0ccee982e38c2ec130d82584f16f74c7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

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
51KB

MD5
bd03242e680514a96211700705e8538d

SHA1
72d294c1b0055b85fe40c41249e007b9dbdac5ad

SHA256
66423ebebeeb86c6dd7b6e6dfb24287818ecb667ce089a5c054b169ba14525ef

SHA512
21fc737094583e222d648ff5bd8025bfc5f53e0dcb11abe39406258b12e0d2759045cc7ab9d8a57cf4bfc3c9390191b954bc00842a06afefecb97f7a15def714

Download Submit
memory/1776-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1776-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1776-3-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1776-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1776-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3048-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download