6b8d9d0413daf9886be8f020c0f4887602213d96da9957e280d25d29c641a5a1

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 19:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-23_e4d1823a908f017203874f5006a48ab0_cryptolocker.exe
Size

4.5MB
MD5

e4d1823a908f017203874f5006a48ab0
SHA1

0f0dda8abfa3856f1149478c190f8eb3022caee0
SHA256

6b8d9d0413daf9886be8f020c0f4887602213d96da9957e280d25d29c641a5a1
SHA512

fac03013afd3db9460777c64cf3fece1fbae6e2a21e522a50c74479b5cfe0e67eb31dd83a678645082b6070879e5f8ea7b205ef4d1d1dc2124a0fccd00046901
SSDEEP

98304:g/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT5:g/ZFIjBzF/ZFIjBzPEUus5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223a-10.dat	CryptoLocker_rule2

Detects executables built or packed with MPress PE compressor 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223a-10.dat	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
3064	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1820	2024-02-23_e4d1823a908f017203874f5006a48ab0_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 1820 wrote to memory of 3064	1820	2024-02-23_e4d1823a908f017203874f5006a48ab0_cryptolocker.exe	28
PID 1820 wrote to memory of 3064	1820	2024-02-23_e4d1823a908f017203874f5006a48ab0_cryptolocker.exe	28
PID 1820 wrote to memory of 3064	1820	2024-02-23_e4d1823a908f017203874f5006a48ab0_cryptolocker.exe	28
PID 1820 wrote to memory of 3064	1820	2024-02-23_e4d1823a908f017203874f5006a48ab0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_e4d1823a908f017203874f5006a48ab0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_e4d1823a908f017203874f5006a48ab0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3064

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
4.5MB

MD5
882cc1638fe9bcd79b0cd1768def8354

SHA1
84949c7bc55fec9ca568c4b7b25234b255f3922e

SHA256
1aac7f6117f553077df23b2145d11b5169287d983e03d87c1412214eb1af0ba9

SHA512
0f7a4056670903af60b69d713b83f9efc2b486c34863a88d2b5f8b4c9d059e5bc7862dc3ccc815a0b3c756f911c0516c4be47b0a23407f778455e3fb5ecb7536

Download Submit
memory/1820-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1820-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1820-7-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/3064-16-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/3064-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download