26d5056f023aa19eebafb6cfbfe00a3780d8843c106d07773f66746da579f181

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
30/06/2024, 07:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_cryptolocker.exe
Size

49KB
MD5

541bfc2b8c9e8e027b4b64e5a9838a83
SHA1

99fa6e184ea54bbf3991ee88c7aeb4be3b2bb5cc
SHA256

26d5056f023aa19eebafb6cfbfe00a3780d8843c106d07773f66746da579f181
SHA512

a4b2302b89b37505b731d597dc6d9e9a55f366ab8499afb2e5446645880c3136f6a4e072d374f7de9d0355e01c1a23b3c0da33bf2f4291ab536fe1c9d71d6573
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatshf:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001342e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001342e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3044	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2184	2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_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
2184	2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_cryptolocker.exe
3044	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 3044	2184	2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_cryptolocker.exe	28
PID 2184 wrote to memory of 3044	2184	2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_cryptolocker.exe	28
PID 2184 wrote to memory of 3044	2184	2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_cryptolocker.exe	28
PID 2184 wrote to memory of 3044	2184	2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-30_541bfc2b8c9e8e027b4b64e5a9838a83_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2184
- 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:3044

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\hurok.exe

Filesize
49KB

MD5
458b75d1b56759cce4b45c1640dafd5f

SHA1
cef64b1472bfefcbac373528a540e9a79ba2236e

SHA256
b07c523fb8f6dd415117f0ee4841b3a0c0c31ffa481a6c9751123c24bf1b4b1f

SHA512
a72f2d9d4fd3f752dc49ef9d618a66fa85b3ef50c311e3088542d209bf91c5791933ff29acee4e4d916e5d841a1a6594a64ba74e88609364277669a35e74618c

Download Submit
memory/2184-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2184-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2184-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3044-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download