f35fe99a0ff2783f7fa9b62f46ca3904e8e35576cdfb3a8755a9665d5100515d

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
19/08/2023, 13:13

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General

Target

3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.exe
Size

60KB
MD5

3fc2bada6407f35ba516f2f05269fb03
SHA1

447d3175d6fa2d9023aa22fa0b6041e0e987e330
SHA256

f35fe99a0ff2783f7fa9b62f46ca3904e8e35576cdfb3a8755a9665d5100515d
SHA512

6d5613770a87fb5cd5ee0ec460e6543376678b5e14dd39be18deafe9aad9b63b51515fb4103bd2c7ca4b0b40bb420e9b1fa5990f2afdb9160abe985c35665e1e
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniD6YIk:aq7tdgI2MyzNORQtOflIwoHNV2XBFV71

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2352	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2624	3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.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
2624	3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.exe
2352	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 2352	2624	3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.exe	30
PID 2624 wrote to memory of 2352	2624	3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.exe	30
PID 2624 wrote to memory of 2352	2624	3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.exe	30
PID 2624 wrote to memory of 2352	2624	3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.exe	30

C:\Users\Admin\AppData\Local\Temp\3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\3fc2bada6407f35ba516f2f05269fb03_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2624
- 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:2352

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
60KB

MD5
c3e454126db35b26ffd083d68589d7c7

SHA1
64ceafada71d06b68a1e336c944d4d9a3372dafb

SHA256
e9af50f34fe709ace9f7560913165a65a90ad078be84ebfc8e39c7bc7f72f096

SHA512
8d4bc009e11c9daab75d784aff8301492cc52e497de4aaf4a1700de13b442ec878957eb9b540ee8e58adce8d041f48dc9037b1a07e429ec183fefc65bfddf652

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

Filesize
60KB

MD5
c3e454126db35b26ffd083d68589d7c7

SHA1
64ceafada71d06b68a1e336c944d4d9a3372dafb

SHA256
e9af50f34fe709ace9f7560913165a65a90ad078be84ebfc8e39c7bc7f72f096

SHA512
8d4bc009e11c9daab75d784aff8301492cc52e497de4aaf4a1700de13b442ec878957eb9b540ee8e58adce8d041f48dc9037b1a07e429ec183fefc65bfddf652

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

Filesize
60KB

MD5
c3e454126db35b26ffd083d68589d7c7

SHA1
64ceafada71d06b68a1e336c944d4d9a3372dafb

SHA256
e9af50f34fe709ace9f7560913165a65a90ad078be84ebfc8e39c7bc7f72f096

SHA512
8d4bc009e11c9daab75d784aff8301492cc52e497de4aaf4a1700de13b442ec878957eb9b540ee8e58adce8d041f48dc9037b1a07e429ec183fefc65bfddf652

Download Submit
memory/2352-70-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2624-53-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2624-55-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2624-54-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download