ae7e8a7be3c0f55c2aa778badefae75daf39805a5870a6e6fa531457d3eb027c

Analysis

max time kernel
139s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 12:36

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General

Target

2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe
Size

64KB
MD5

5b5296701c3c9f06e7c2ee0a69849c00
SHA1

d3963a854df270eda199f26e4d49a3bfd86ca81a
SHA256

ae7e8a7be3c0f55c2aa778badefae75daf39805a5870a6e6fa531457d3eb027c
SHA512

945f83056a68d829629f958511ca66cb17a83be02e47495a5944236cd79456e015ced70ccd95dd7cc4b1d84d0690f1f32cf13c6adf119613ef183035c889336a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDSc9n:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3020	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1776	2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1776	2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe
3020	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 3020	1776	2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe	28
PID 1776 wrote to memory of 3020	1776	2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe	28
PID 1776 wrote to memory of 3020	1776	2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe	28
PID 1776 wrote to memory of 3020	1776	2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_5b5296701c3c9f06e7c2ee0a69849c00_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3020

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\hurok.exe

Filesize
64KB

MD5
830a709b3fac548a413c4d45bee34994

SHA1
b4b6910ec9489aba44e3484b8ecff44a0725b911

SHA256
b890228c64eff14dc2d2ebf5853d0df988c740bf2c929471a088f1ad7d0a0c77

SHA512
5751c840f89bcae2524d926a2380e38e51ff24ec39b718e4b44b0543aa956e12102187853b66637802892bb81fc9cc4291411de2615583b9ea2dad9eeef46008

Download Submit
memory/1776-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1776-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1776-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3020-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download