5286edda7f86b2c5602ccaf8434aa316b505195a843592649ecd1f49dfcf73ed

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
23/01/2024, 09:47

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General

Target

2024-01-23_9d7856aa6920d68f7dced8ff6275fff6_cryptolocker.exe
Size

43KB
MD5

9d7856aa6920d68f7dced8ff6275fff6
SHA1

320b1cfb090c5a4ce4c56200537391169d732e51
SHA256

5286edda7f86b2c5602ccaf8434aa316b505195a843592649ecd1f49dfcf73ed
SHA512

d9436b4eaa335699dd44b6060b3e57f47e083c8004f3f0a229ce536130abbe0f9de46c5b97b62c516c34e264f969eb7ae040266b7f55aa256ed86140b97c62b0
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5X:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2500-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001225b-11.dat	CryptoLocker_rule2
behavioral1/memory/2500-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2332-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2500-13-0x0000000002700000-0x000000000270B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2500-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001225b-11.dat	CryptoLocker_set1
behavioral1/memory/2500-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2332-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2500-13-0x0000000002700000-0x000000000270B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2332	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2500	2024-01-23_9d7856aa6920d68f7dced8ff6275fff6_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 2500 wrote to memory of 2332	2500	2024-01-23_9d7856aa6920d68f7dced8ff6275fff6_cryptolocker.exe	28
PID 2500 wrote to memory of 2332	2500	2024-01-23_9d7856aa6920d68f7dced8ff6275fff6_cryptolocker.exe	28
PID 2500 wrote to memory of 2332	2500	2024-01-23_9d7856aa6920d68f7dced8ff6275fff6_cryptolocker.exe	28
PID 2500 wrote to memory of 2332	2500	2024-01-23_9d7856aa6920d68f7dced8ff6275fff6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_9d7856aa6920d68f7dced8ff6275fff6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_9d7856aa6920d68f7dced8ff6275fff6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2332

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
42efd27b09d09739e14bc873d6c93e4f

SHA1
2cb16fd7747b2194985bcd05d9cbbf761da0d4b6

SHA256
6325ee6873b52a39926db3de99d29948511002c113d169cad7abc33af9d89315

SHA512
06e23de5ea6ef88fa12552c2d4ff5b6c6d7b0b91b3f4e6a37c019294a316543ed865897ddc7837f4391a091d0ecc4ed2ae7950e0097e3c598c5934ea72e07e8b

Download Submit
memory/2332-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2332-19-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2332-23-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2500-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2500-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2500-3-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2500-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2500-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2500-13-0x0000000002700000-0x000000000270B000-memory.dmp

Filesize
44KB

Download