ded5062765800530686ee18f2ef982817114d3be977607d18ee3b3fa26570ea1

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-01-2024 22:25

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General

Target

2024-01-18_0ca00c2a5ce2440ed9a89b0da803230a_cryptolocker.exe
Size

67KB
MD5

0ca00c2a5ce2440ed9a89b0da803230a
SHA1

e5265204c89a3add5e3cced616904d2256bdda7e
SHA256

ded5062765800530686ee18f2ef982817114d3be977607d18ee3b3fa26570ea1
SHA512

ed89af50d1eaece8ee90324664643f8991e13db7dfeea9a69c9b8ab0e22d85771b5e41fe75c0906f337e99b401d0491317d14d774b237095991e834ed8e50aa0
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNL:DW60sllyWOtEvwDpjwF85H

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2040-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00090000000120e1-11.dat	CryptoLocker_rule2
behavioral1/memory/2040-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2040-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x00090000000120e1-11.dat	CryptoLocker_set1
behavioral1/memory/2040-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2200	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2040	2024-01-18_0ca00c2a5ce2440ed9a89b0da803230a_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 2040 wrote to memory of 2200	2040	2024-01-18_0ca00c2a5ce2440ed9a89b0da803230a_cryptolocker.exe	28
PID 2040 wrote to memory of 2200	2040	2024-01-18_0ca00c2a5ce2440ed9a89b0da803230a_cryptolocker.exe	28
PID 2040 wrote to memory of 2200	2040	2024-01-18_0ca00c2a5ce2440ed9a89b0da803230a_cryptolocker.exe	28
PID 2040 wrote to memory of 2200	2040	2024-01-18_0ca00c2a5ce2440ed9a89b0da803230a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-18_0ca00c2a5ce2440ed9a89b0da803230a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_0ca00c2a5ce2440ed9a89b0da803230a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2200

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
67KB

MD5
6e29aa849c63fc7a36ee8afc9133ff2d

SHA1
7c84e9f5a9c90efb7663c315692ef22b98ff42f9

SHA256
a98eea6f3cc6a66fb2fe146352f78604f9287baf868e018927151e49527df478

SHA512
97b2e6adef78ff71000f7fd6454ca27dad165a87f6eeced3a33f13fb251a855b0bb9fe0ade5d38738e28bf453a44d1ad80eb6fca6ece898e6570fd6f7f4b6e96

Download Submit
memory/2040-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2040-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2040-3-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2040-2-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2040-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2200-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2200-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download