efcdfd8a892183cbe490aae6099f9e2c077a1bc3a1791dcda4940515f2fec26b

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 02:48

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General

Target

2024-05-25_989ea9edf7979349728002fb556f62d5_cryptolocker.exe
Size

50KB
MD5

989ea9edf7979349728002fb556f62d5
SHA1

c3f6f7d41bcd4bfcf6b46213fb0df332d85d2765
SHA256

efcdfd8a892183cbe490aae6099f9e2c077a1bc3a1791dcda4940515f2fec26b
SHA512

d3a134d47e2f59cec16edc1db5f361440f28bda4434b491628a8fd04c763988bae437c9596d863310b856e9fb243528410e6248c886a3bbdba9abcda2d2afec4
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ15x8r8:ZVxkGOtEvwDpjcs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012286-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2992	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1940	2024-05-25_989ea9edf7979349728002fb556f62d5_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 1940 wrote to memory of 2992	1940	2024-05-25_989ea9edf7979349728002fb556f62d5_cryptolocker.exe	28
PID 1940 wrote to memory of 2992	1940	2024-05-25_989ea9edf7979349728002fb556f62d5_cryptolocker.exe	28
PID 1940 wrote to memory of 2992	1940	2024-05-25_989ea9edf7979349728002fb556f62d5_cryptolocker.exe	28
PID 1940 wrote to memory of 2992	1940	2024-05-25_989ea9edf7979349728002fb556f62d5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_989ea9edf7979349728002fb556f62d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_989ea9edf7979349728002fb556f62d5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2992

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
50KB

MD5
920dcaf71c3471312138b09c50640594

SHA1
5e0ae006e1d719db484b0aefc0d676f1b53bddc9

SHA256
63678d1dff16a929f707a40c91d4fbbf34f41daaabf869997b03d130671b1ba6

SHA512
e64533358a70715ffdb5218e9b48e0ff5aec30f64b000c844d2bc9c97284b5b1962afbc3686dc8d31fea10377b3630a56246e65fbf38f0c4d47690ba7361b1e4

Download Submit
memory/1940-0-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/1940-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1940-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1940-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2992-16-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2992-17-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download