67af82685aa9ee6569a433978ff9690bc940e12d979542311f543d6f3668e82b

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 22:24

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General

Target

2024-05-23_3538fb5307cb157678933f6f97a75983_cryptolocker.exe
Size

43KB
MD5

3538fb5307cb157678933f6f97a75983
SHA1

a5f735aea81434d194812d3311c00f79390b3e26
SHA256

67af82685aa9ee6569a433978ff9690bc940e12d979542311f543d6f3668e82b
SHA512

c50843b79a8e44a6b36d59887e662bc76b3f15d07606ba81d3ceec61517ecc4fc04080dcf797644c208734761c21cbcafed1dfceda84b5188486c4fa040a46a7
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66TcW:vj+jsMQMOtEvwDpj5HW5scW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001226d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001226d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2604	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2392	2024-05-23_3538fb5307cb157678933f6f97a75983_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 2392 wrote to memory of 2604	2392	2024-05-23_3538fb5307cb157678933f6f97a75983_cryptolocker.exe	28
PID 2392 wrote to memory of 2604	2392	2024-05-23_3538fb5307cb157678933f6f97a75983_cryptolocker.exe	28
PID 2392 wrote to memory of 2604	2392	2024-05-23_3538fb5307cb157678933f6f97a75983_cryptolocker.exe	28
PID 2392 wrote to memory of 2604	2392	2024-05-23_3538fb5307cb157678933f6f97a75983_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-23_3538fb5307cb157678933f6f97a75983_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_3538fb5307cb157678933f6f97a75983_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2604

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\misid.exe

Filesize
44KB

MD5
4a88ce7323c7a443de0f62c6dfd5a35f

SHA1
f18005fcb7e79865dbd2ac8d56314940a05d412a

SHA256
39c31c6d7c10ad60ea56bf83192dc5305af382157b9ec25738e1d68c38816f66

SHA512
c90b6daf581e665ffe685798f584f6dc47ebac73c4bbb1151773ab40cd57561f8a829468bf70a9ffad748c39941041c547993c4267492e1ee1a7acb1c7cab07e

Download Submit
memory/2392-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2392-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2392-8-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2604-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2604-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download