069d653a02ae5d5b793d5b652d6cf8160d0eb22ea9531a1be2c9a3f463ce8517

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
21-02-2024 12:46

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General

Target

2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe
Size

31KB
MD5

241a6d68091d2325dffab935869ed622
SHA1

5298f146eca20e890db59b114ca0034d7fe24d48
SHA256

069d653a02ae5d5b793d5b652d6cf8160d0eb22ea9531a1be2c9a3f463ce8517
SHA512

3dbf1f33098411bb5e4fc94982d9c4b8e1ce2b6c6f96403b6f8d80ea6f6ed37168138a93dff0c7cf0612a24adb018a951066f578d8c210a1788fdbc806b73394
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm77J:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001393e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001393e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2140	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	2024-02-21_241a6d68091d2325dffab935869ed622_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
2128	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe
2140	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2140	2128	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe	28
PID 2128 wrote to memory of 2140	2128	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe	28
PID 2128 wrote to memory of 2140	2128	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe	28
PID 2128 wrote to memory of 2140	2128	2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_241a6d68091d2325dffab935869ed622_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2128
- 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:2140

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

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Downloads

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

Filesize
31KB

MD5
0a34264ec1f21e9dde45fee9f88f47cd

SHA1
1f386e22b52beaf4b4ea0b6f7c13040103097f54

SHA256
24d70c0283764a4db5341a2a0d2838a917503dcf62599c35a3ad2cb40425bfb4

SHA512
c83f561e17f5234f5f253a3f71c8e20e2b84cce40d87d2e92c8c33330aaab6a4196e7028d2851ed3498547f9d7f43949d48ea96e71fefd61b136b762a20353db

Download Submit
memory/2128-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2128-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2128-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2140-18-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download