cde779c82acf8b6b3c42bf5f25de458036dbb274370ff26e3b20355528352e95

Analysis

max time kernel
150s
max time network
158s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 10:32

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General

Target

2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe
Size

40KB
MD5

8c13c500a9c5070e5bae580eefba2874
SHA1

e7d108b687a682e7ac9040ca59a7090f68c9de49
SHA256

cde779c82acf8b6b3c42bf5f25de458036dbb274370ff26e3b20355528352e95
SHA512

44bd18d9f8b48c7194d10679abbf7cfacf884364cf925960f7ed8df2c9ab11ff329c72bdad0e85a22ebcb5e0c4a6711e799e3fe77390fa910f7a8691d658d938
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0WZy3:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001226d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001226d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3028	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1716	2024-06-30_8c13c500a9c5070e5bae580eefba2874_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
1716	2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe
3028	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 3028	1716	2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe	28
PID 1716 wrote to memory of 3028	1716	2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe	28
PID 1716 wrote to memory of 3028	1716	2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe	28
PID 1716 wrote to memory of 3028	1716	2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-30_8c13c500a9c5070e5bae580eefba2874_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1716
- 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:3028

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
40KB

MD5
efae01b8a31cecae4b49adc811cf66aa

SHA1
efcd3647e734329f2d927b4dd28f8260bbcf53d3

SHA256
856639ad285e9c74342ff30898fd8355b7cf2f30c890e5d9fea994edb58c89fe

SHA512
5e22e05d86b5fd1e3193c06cdb583f9192b6892fc4ecd602ec8477e194647e1420fa1efee8e07b25d9d9109a3afd813b568f743900dee1c92be3fde6bcb03a1f

Download Submit
memory/1716-8-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1716-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1716-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/3028-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download