e0c56bedf72b3d32cd5d0f793d062bde103cb3265ee6cb92f392337eda598300

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe
Size

43KB
MD5

28cefed9c92a884d2f86fc72c1dc844c
SHA1

5f8a38246fa5e1fb88dd0954294eaafdda4208f4
SHA256

e0c56bedf72b3d32cd5d0f793d062bde103cb3265ee6cb92f392337eda598300
SHA512

79fac09b03aa6b02e6e5a0c918534241041ee27cf707a90bb171698b547d7db2cafc1324aea6f12df067067bcb1a85a5fe4401e30c461d56c72fa6a69c26ec3a
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kxp:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

2844 hurok.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe

pid process

2396 2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_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

Processes:

2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exehurok.exe

pid process

2396 2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe
2844 hurok.exe

pid	process
2844	hurok.exe

pid	process
2396	2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe

pid	process
2396	2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe
2844	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe

description	pid	process	target process
PID 2396 wrote to memory of 2844	2396	2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe	hurok.exe
PID 2396 wrote to memory of 2844	2396	2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe	hurok.exe
PID 2396 wrote to memory of 2844	2396	2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe	hurok.exe
PID 2396 wrote to memory of 2844	2396	2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_28cefed9c92a884d2f86fc72c1dc844c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2396
- 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:2844

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
43KB

MD5
ed8b992103997cf33d9897c229e28f46

SHA1
c4bdbdd9d8b09cbc2d35503727e4c57b44555d3a

SHA256
2e0c295e2c2d0fb5a81fb58a007d6fdc09d9b20a2caa8c8fcacd56823cd31655

SHA512
ee7a32162f486e560cd5bedc953c7c72a39a75d9a271e7ba5245f720630a33141887d791bb3e9c17958566fadaf95b879288bc9faa1dae5f62eea63b7fd0b818

Download Submit
memory/2396-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2396-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2396-3-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2844-23-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download