831e48000e3a9b98df0151ad9293e98c8b7dcb512f816b8e77ff7cb91911d9bf

Analysis

max time kernel
143s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 03:49

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General

Target

2024-05-07_cc2393710cb5bc3bc8307b2dd7a4ade7_cryptolocker.exe
Size

66KB
MD5

cc2393710cb5bc3bc8307b2dd7a4ade7
SHA1

7de5170f04af5e486870966d2dad7e6da4b1d6c4
SHA256

831e48000e3a9b98df0151ad9293e98c8b7dcb512f816b8e77ff7cb91911d9bf
SHA512

dbc0e6673115fbbdcf2de9b573caf55103303c526a6edade342ac56dc3a7df90cd89401c9e0c45994c8a947980b47236c3b6091869735f6941d12f416016252d
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyV:TCjsIOtEvwDpj5HE/OUHnSMYa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2508-24-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d0000000144e9-22.dat	CryptoLocker_rule2
behavioral1/memory/2452-8-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2508-24-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d0000000144e9-22.dat	CryptoLocker_set1
behavioral1/memory/2452-8-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2508	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2452	2024-05-07_cc2393710cb5bc3bc8307b2dd7a4ade7_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 2452 wrote to memory of 2508	2452	2024-05-07_cc2393710cb5bc3bc8307b2dd7a4ade7_cryptolocker.exe	28
PID 2452 wrote to memory of 2508	2452	2024-05-07_cc2393710cb5bc3bc8307b2dd7a4ade7_cryptolocker.exe	28
PID 2452 wrote to memory of 2508	2452	2024-05-07_cc2393710cb5bc3bc8307b2dd7a4ade7_cryptolocker.exe	28
PID 2452 wrote to memory of 2508	2452	2024-05-07_cc2393710cb5bc3bc8307b2dd7a4ade7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_cc2393710cb5bc3bc8307b2dd7a4ade7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_cc2393710cb5bc3bc8307b2dd7a4ade7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2508

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
66KB

MD5
fb716af5677e84b7f701549d119da10d

SHA1
a0570642ef018d047794d5ea3c9fe4bdadc03266

SHA256
99cda0cbf9f9a2044ac7f5fde931e1b1164aa34db09339095b6d31894cbf3ac5

SHA512
d96c3051f064e5a14ad1655e29813daf7c8247f863f28331dc70cda3ceaf7d4f66c1aeb2b793998b2bd9ae9b57f8b0c31c40c72d6a9a1c7c51e49a5f41ec0363

Download Submit
memory/2452-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2452-8-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2452-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2452-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2508-24-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2508-23-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2508-16-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download