85f5d7060ae28b4066e0453210afff27e9b7fb84baf7a6952e532acd3ad82d69

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 16:56

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General

Target

2024-05-09_ff799466e5d0f58ee3f854d12f048bf3_cryptolocker.exe
Size

35KB
MD5

ff799466e5d0f58ee3f854d12f048bf3
SHA1

daf67e5817d04dd2768da4e9ea80c22c70ef53c4
SHA256

85f5d7060ae28b4066e0453210afff27e9b7fb84baf7a6952e532acd3ad82d69
SHA512

115e01a35783ea4542ad2e0c6fb40227958df9562dbeed747550c5cd64fd51af428e92580342fca500aa7967d722b2963d86d7f6bf971cc14d0e7f1e334ce5ee
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswm6GZC:bA6YcA/X6G0W1PGZC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015cff-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1652	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2972	2024-05-09_ff799466e5d0f58ee3f854d12f048bf3_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 2972 wrote to memory of 1652	2972	2024-05-09_ff799466e5d0f58ee3f854d12f048bf3_cryptolocker.exe	28
PID 2972 wrote to memory of 1652	2972	2024-05-09_ff799466e5d0f58ee3f854d12f048bf3_cryptolocker.exe	28
PID 2972 wrote to memory of 1652	2972	2024-05-09_ff799466e5d0f58ee3f854d12f048bf3_cryptolocker.exe	28
PID 2972 wrote to memory of 1652	2972	2024-05-09_ff799466e5d0f58ee3f854d12f048bf3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_ff799466e5d0f58ee3f854d12f048bf3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_ff799466e5d0f58ee3f854d12f048bf3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1652

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
35KB

MD5
2fc2735247872d0655e19bb74cc27821

SHA1
ac5420b8f2d98dbd050c31dbd9b370906643a4dd

SHA256
ffcdf14d66c814c0daed5449eb5a7275f9191555eee8799fbb0136c86b7cbb5d

SHA512
d1e0837803c801c01b7dc0510d82bc12c90a7e7c6178c65b2cf5c9b535b3ec9972e30a1f234f6c826a853d8804d2dbba0c7d85400e77ab3f7179c695fa733347

Download Submit
memory/1652-15-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1652-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2972-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2972-1-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/2972-7-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download