376317edfed56db388d025c457cf33cc78c0cbe8c58424452811e67c7d00987e

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 01:04

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General

Target

2024-01-27_e51c8b7afa63779be5b9ae1f05fe10c7_cryptolocker.exe
Size

48KB
MD5

e51c8b7afa63779be5b9ae1f05fe10c7
SHA1

2c56b72618c731c67793109bb577f168a29694ab
SHA256

376317edfed56db388d025c457cf33cc78c0cbe8c58424452811e67c7d00987e
SHA512

4c9c6565bea03e88d7da64c36b4b5b8f73169daf5fb984f2dbb1226d3e3e3d4b37f260a3b95eb281f06f64427adb1e8a4562f1f93fc733f5027023f01537a05b
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakNfA:V6a+pOtEvwDpjH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012284-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012284-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1720	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-01-27_e51c8b7afa63779be5b9ae1f05fe10c7_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 2244 wrote to memory of 1720	2244	2024-01-27_e51c8b7afa63779be5b9ae1f05fe10c7_cryptolocker.exe	28
PID 2244 wrote to memory of 1720	2244	2024-01-27_e51c8b7afa63779be5b9ae1f05fe10c7_cryptolocker.exe	28
PID 2244 wrote to memory of 1720	2244	2024-01-27_e51c8b7afa63779be5b9ae1f05fe10c7_cryptolocker.exe	28
PID 2244 wrote to memory of 1720	2244	2024-01-27_e51c8b7afa63779be5b9ae1f05fe10c7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_e51c8b7afa63779be5b9ae1f05fe10c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_e51c8b7afa63779be5b9ae1f05fe10c7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1720

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
48KB

MD5
1ae9837f4b4cf003617b83a70b55905f

SHA1
b047fcb2f54ce5170c8339a19aabc4bfcdc17a59

SHA256
c0c403413af2028877c4e5392265319b1e7011b59fd10daac028c058b160ed39

SHA512
6c5826d41f25b89e6a727717aac53e59832a97054b642a1fa38459dcdfd42d8ed5f4310edece2307440b2075548648e5a1b4464471ba07ccc0a3b9d4d0f469f8

Download Submit
memory/1720-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1720-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2244-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2244-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2244-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download