4026c711f13df8414b61f9e47ca237f4d622d5dee3747a2ba81a3bba06b57629

Analysis

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

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
03/05/2024, 04:42

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General

Target

2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_cryptolocker.exe
Size

65KB
MD5

8f25e0ce268e09e57c877b474a56f7e4
SHA1

a0c9e24afa6758d031fcba96cd075a5e9f9b7ec7
SHA256

4026c711f13df8414b61f9e47ca237f4d622d5dee3747a2ba81a3bba06b57629
SHA512

79028d16cd17b8e51ee9b8e43aeb4673257fa60a30c64ed1fc733b973f58d2ee2de2ced4107042c0100fa2442b1b32eb09b80f256c93e24a3b6904e80e926ec2
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299r:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001480e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001480e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2488	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1844	2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_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
1844	2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_cryptolocker.exe
2488	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1844 wrote to memory of 2488	1844	2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_cryptolocker.exe	28
PID 1844 wrote to memory of 2488	1844	2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_cryptolocker.exe	28
PID 1844 wrote to memory of 2488	1844	2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_cryptolocker.exe	28
PID 1844 wrote to memory of 2488	1844	2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-03_8f25e0ce268e09e57c877b474a56f7e4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1844
- 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:2488

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
65KB

MD5
3e00d56634ea0f29e436dc0316001069

SHA1
d01fcf70f79f0d4ad4398ebbca50bf2efa5167cc

SHA256
445f2d828f8213aaa65483dc3815187c9bf5d86538769e8cc9c91d40f889dfdb

SHA512
4ebc94e3e948792854be34c8a23e5e0f4db9e218745b5ddc6fc200d61d002c6850c8d91a65f8bd7c5a2732b6320f3224e9639363f598d31a73de7b8c08f0b780

Download Submit
memory/1844-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1844-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1844-7-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2488-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download