e7f5b9b582f9b330bcbadf060106d0d2289341f78a3237ec88f4be7eb8d2eaa6

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
08/06/2024, 23:24

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General

Target

2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe
Size

55KB
MD5

24f6f3546f45447a614e32d1b72dd239
SHA1

2c5695eaf1bc425f0bf702f73ec32e2e7195dc87
SHA256

e7f5b9b582f9b330bcbadf060106d0d2289341f78a3237ec88f4be7eb8d2eaa6
SHA512

39c598cff7dfd1bbf617760487f3f9683e9fd84684cf6c91ddc8c851c3f7cc1abe0cec14943857bd67d8a023e573cf58ca4ded9df36b7fbcd60cd303f58f5bc9
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6EX:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001227f-14.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001227f-14.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1228	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2320	2024-06-08_24f6f3546f45447a614e32d1b72dd239_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
2320	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe
1228	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 1228	2320	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe	28
PID 2320 wrote to memory of 1228	2320	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe	28
PID 2320 wrote to memory of 1228	2320	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe	28
PID 2320 wrote to memory of 1228	2320	2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2320
- 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:1228

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

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
55KB

MD5
46a18081ead666da915bd47286a3f394

SHA1
47e4e1a6f09bbfc89defb460b3a891715d782abc

SHA256
a53ce701b1678d91d247b98466d719208faabcc4c63bf601c7fc8b723183b1d0

SHA512
187b29413fa4186d2fef11cb12e547335b7c052a94fb55b3b3d23551a95a8d62fe3a4258af84bad6d9756ee9d47806b00bbfc02aa728a851465eee4f5b8cbc1e

Download Submit
memory/1228-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2320-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2320-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2320-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download