50b8d7325f37d23a6065a9457373d962af037c78021c2f8e5b6ae51120e75073

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
03/08/2023, 18:12

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General

Target

53ff1e35f9a1122843f06b175cb13217_cryptolocker_JC.exe
Size

60KB
MD5

53ff1e35f9a1122843f06b175cb13217
SHA1

c6ebc81bf7beb8960080afc0e7d892e52e1e82c3
SHA256

50b8d7325f37d23a6065a9457373d962af037c78021c2f8e5b6ae51120e75073
SHA512

cf507fdc4e7a6c813a4cc24a617453e31acf377bbb44b0c69237044abc43e7e0a7a9b5f313ffffda7a44c8b644502c3b02c148282e206ce3bdbdf40753e10cb6
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xo3/nyxVy:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2536	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	53ff1e35f9a1122843f06b175cb13217_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
2004	53ff1e35f9a1122843f06b175cb13217_cryptolocker_JC.exe
2536	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2536	2004	53ff1e35f9a1122843f06b175cb13217_cryptolocker_JC.exe	28
PID 2004 wrote to memory of 2536	2004	53ff1e35f9a1122843f06b175cb13217_cryptolocker_JC.exe	28
PID 2004 wrote to memory of 2536	2004	53ff1e35f9a1122843f06b175cb13217_cryptolocker_JC.exe	28
PID 2004 wrote to memory of 2536	2004	53ff1e35f9a1122843f06b175cb13217_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\53ff1e35f9a1122843f06b175cb13217_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\53ff1e35f9a1122843f06b175cb13217_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2004
- 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:2536

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
04be65a94c8955e031e04354799da2c3

SHA1
6f210977ed296dbb7de5275fb0b3e6ee98abc69f

SHA256
c3bf765ab0ce1b606d6b183ca7b48377967513ff613e9109e479f9c676e63795

SHA512
b1f42bb7ae2f5bccfbffb6828fe1a7b8427d375c7054e4dca35cd5129ca0011861af5fdfc1f6a7719339b5ce70460e508c57ecbdda2a9165b474d22b443a7028

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

Filesize
60KB

MD5
04be65a94c8955e031e04354799da2c3

SHA1
6f210977ed296dbb7de5275fb0b3e6ee98abc69f

SHA256
c3bf765ab0ce1b606d6b183ca7b48377967513ff613e9109e479f9c676e63795

SHA512
b1f42bb7ae2f5bccfbffb6828fe1a7b8427d375c7054e4dca35cd5129ca0011861af5fdfc1f6a7719339b5ce70460e508c57ecbdda2a9165b474d22b443a7028

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

Filesize
60KB

MD5
04be65a94c8955e031e04354799da2c3

SHA1
6f210977ed296dbb7de5275fb0b3e6ee98abc69f

SHA256
c3bf765ab0ce1b606d6b183ca7b48377967513ff613e9109e479f9c676e63795

SHA512
b1f42bb7ae2f5bccfbffb6828fe1a7b8427d375c7054e4dca35cd5129ca0011861af5fdfc1f6a7719339b5ce70460e508c57ecbdda2a9165b474d22b443a7028

Download Submit
memory/2004-54-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2004-56-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2004-55-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2536-70-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download