a813f6619d50857695142083925610bf5bf31e905a8f47366b19fb747c43f75a

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04/04/2024, 20:02

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General

Target

2024-04-04_d38aedb789d02796234a55ec21537c8a_cryptolocker.exe
Size

387KB
MD5

d38aedb789d02796234a55ec21537c8a
SHA1

5345c01f297ba6fa7c9bfa20123157dda418e98d
SHA256

a813f6619d50857695142083925610bf5bf31e905a8f47366b19fb747c43f75a
SHA512

579797b80cb239214560b8d355fe73691fb40594aedfbad519fa799a3d47ca410ee4af677a25cf41adff46c59511be2f7c49d90f816fd0bdcc387db00248b0d6
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX1:nnOflT/ZFIjBz3xjTxynGUOUhX1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012245-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2552	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2776	2024-04-04_d38aedb789d02796234a55ec21537c8a_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 2776 wrote to memory of 2552	2776	2024-04-04_d38aedb789d02796234a55ec21537c8a_cryptolocker.exe	28
PID 2776 wrote to memory of 2552	2776	2024-04-04_d38aedb789d02796234a55ec21537c8a_cryptolocker.exe	28
PID 2776 wrote to memory of 2552	2776	2024-04-04_d38aedb789d02796234a55ec21537c8a_cryptolocker.exe	28
PID 2776 wrote to memory of 2552	2776	2024-04-04_d38aedb789d02796234a55ec21537c8a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-04_d38aedb789d02796234a55ec21537c8a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-04_d38aedb789d02796234a55ec21537c8a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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\hasfj.exe

Filesize
387KB

MD5
e85deda568fa97e0adc88da1a572b4b1

SHA1
ea5b6cd8e84bac7dc12b9fe5970f5e047819684a

SHA256
4dd60d6e4d3fd64a4161d8bb3f2f802dd714650eadaccf3d086bb83370c29645

SHA512
24d73409f2fae8ea068aa1b17fd08de63e8677db5a33baba91a6d8828a0baff60ae4612dd472cc2c72b278642fdfde97790f626ae5cf50faa706eb223f07cddc

Download Submit
memory/2552-15-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2552-18-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2776-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2776-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2776-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download