41d754c1a42f043fd817d6e51736bbf8a3ebc76376f2025f8f81a4b6f84fbf66

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
11/04/2024, 08:49

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General

Target

2024-04-11_9da5efaef5755a4678e1767a0e0e45e7_cryptolocker.exe
Size

388KB
MD5

9da5efaef5755a4678e1767a0e0e45e7
SHA1

158f130a7b006858e6735bb3ad86483a265c2c18
SHA256

41d754c1a42f043fd817d6e51736bbf8a3ebc76376f2025f8f81a4b6f84fbf66
SHA512

7ab5db35f2f52592744dea89368adadffed604ab67d2a650f77fb9c762b38d1342c6fcccde654f6d261a7db202fedbd324063d10c0c3228973c2853957db95ea
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXa:nnOflT/ZFIjBz3xjTxynGUOUhXa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2924	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1600	2024-04-11_9da5efaef5755a4678e1767a0e0e45e7_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 1600 wrote to memory of 2924	1600	2024-04-11_9da5efaef5755a4678e1767a0e0e45e7_cryptolocker.exe	28
PID 1600 wrote to memory of 2924	1600	2024-04-11_9da5efaef5755a4678e1767a0e0e45e7_cryptolocker.exe	28
PID 1600 wrote to memory of 2924	1600	2024-04-11_9da5efaef5755a4678e1767a0e0e45e7_cryptolocker.exe	28
PID 1600 wrote to memory of 2924	1600	2024-04-11_9da5efaef5755a4678e1767a0e0e45e7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-11_9da5efaef5755a4678e1767a0e0e45e7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_9da5efaef5755a4678e1767a0e0e45e7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2924

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
388KB

MD5
b5882a7c289ca5119f5c5da1672ccb61

SHA1
68e05ba0c3d6e54abdcfcb31c2efd831236a53c9

SHA256
7f7b3779bf0552900b2619874bfef48df8fd7d83cde18a554a780d6170a4f876

SHA512
73ad971210dfca0a6514aac59902c5081b5adba9367612126621695d301588a5200655b68acd18a0685334741bb41da4fae50579d43b326f9e3fec15bdc80c07

Download Submit
memory/1600-0-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1600-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1600-8-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2924-15-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2924-17-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download