2db290087caa5a9777f90cad496a0cad583e8cdc93ddbf7ed476fb79d96f9998

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18/04/2024, 22:27

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General

Target

2024-04-18_d4edc0d439ccdc5694b67ebebcd2fc7b_cryptolocker.exe
Size

42KB
MD5

d4edc0d439ccdc5694b67ebebcd2fc7b
SHA1

4050ef255adaaddcd12beff0da9067916923920a
SHA256

2db290087caa5a9777f90cad496a0cad583e8cdc93ddbf7ed476fb79d96f9998
SHA512

2dfd96fc0b4ae116aeff4c1a37263cef86358385c3c22a6464e29fa7be4961530eb284929bda145f96c076a9fad2bb14243e3d33420c2ea0fca24137ad7f859c
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUE:bm74zYcgT/Ekn0ryfjF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1124-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1124-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001223a-16.dat	CryptoLocker_rule2
behavioral1/memory/2944-17-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2944-27-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2944	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1124	2024-04-18_d4edc0d439ccdc5694b67ebebcd2fc7b_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 1124 wrote to memory of 2944	1124	2024-04-18_d4edc0d439ccdc5694b67ebebcd2fc7b_cryptolocker.exe	28
PID 1124 wrote to memory of 2944	1124	2024-04-18_d4edc0d439ccdc5694b67ebebcd2fc7b_cryptolocker.exe	28
PID 1124 wrote to memory of 2944	1124	2024-04-18_d4edc0d439ccdc5694b67ebebcd2fc7b_cryptolocker.exe	28
PID 1124 wrote to memory of 2944	1124	2024-04-18_d4edc0d439ccdc5694b67ebebcd2fc7b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-18_d4edc0d439ccdc5694b67ebebcd2fc7b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_d4edc0d439ccdc5694b67ebebcd2fc7b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2944

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\hasfj.exe

Filesize
42KB

MD5
d5777732f9998ea0c045ec65fa799f4c

SHA1
d30ad573d2752d515898472b2fa0c20a7920ce54

SHA256
35e6c421c56a3ace7d21fab65ebad68d62e69938c412807bb7c3a7561df8e383

SHA512
4530af7f3fc57a939a6c29c04834b8f5bfafee0825fc0cebdefdfc1042cfd35f140753260e3739d203eba8ff2fe410b90c0b515a389cccfc06f63359fe66499e

Download Submit
memory/1124-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/1124-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1124-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1124-3-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1124-13-0x0000000002F30000-0x0000000002F3D000-memory.dmp

Filesize
52KB

Download
memory/1124-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2944-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2944-20-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2944-27-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download