399500b72f1db660b195a014b29705dc0c8d59f173063eb0fabaf99d9ff72af3

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 07:27

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General

Target

2024-03-06_7e2698b183345f1e395922e49de36c79_cryptolocker.exe
Size

43KB
MD5

7e2698b183345f1e395922e49de36c79
SHA1

36f2432e2fbd6d8fdca61c462f0b118bae243ab8
SHA256

399500b72f1db660b195a014b29705dc0c8d59f173063eb0fabaf99d9ff72af3
SHA512

4429062aeb7e1568e45e7aef6f3c884df5bd959f089f4b6a658e2900fc083aa0a5ae3f1412a8f59494010b5d97a9b6beea79a7edf2cfbc5c5726544096004933
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+Ml:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2820-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000014a94-11.dat	CryptoLocker_rule2
behavioral1/memory/2820-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2628-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2820-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000014a94-11.dat	CryptoLocker_set1
behavioral1/memory/2820-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2628-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2628	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2820	2024-03-06_7e2698b183345f1e395922e49de36c79_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 2820 wrote to memory of 2628	2820	2024-03-06_7e2698b183345f1e395922e49de36c79_cryptolocker.exe	28
PID 2820 wrote to memory of 2628	2820	2024-03-06_7e2698b183345f1e395922e49de36c79_cryptolocker.exe	28
PID 2820 wrote to memory of 2628	2820	2024-03-06_7e2698b183345f1e395922e49de36c79_cryptolocker.exe	28
PID 2820 wrote to memory of 2628	2820	2024-03-06_7e2698b183345f1e395922e49de36c79_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_7e2698b183345f1e395922e49de36c79_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_7e2698b183345f1e395922e49de36c79_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2628

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
43KB

MD5
103a40cc4631b1192c75c42bb5709ef4

SHA1
39ade905158b72cce42c9bf0be9696f3a531ef15

SHA256
abed480ae26ff28217b1ee7e581352b05255916e4d740ed6f9661c7d65f9217b

SHA512
957388f2bddb454f64ae5c85bf54ad4b2fece121d69478259ce0ee440ac78777553e38b278091629bd3682e983ddcb188815120ec945d1413446317aa16ba192

Download Submit
memory/2628-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2820-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2820-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2820-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2820-3-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2820-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2820-13-0x0000000001EE0000-0x0000000001EEB000-memory.dmp

Filesize
44KB

Download