Analysis
- max time kernel
137s - max time network
150s - platform
windows7_x64 - resource
win7-20240508-en - resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system - submitted
06/06/2024, 21:29
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe
Resource
win7-20240508-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe
Resource
win10v2004-20240508-en
6 signatures
150 seconds
General
- Target 2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe
- Size 66KB
- Sample240606-1cdzcsdd57
- SHA256 a42a7e261f242405813fe82aeb55d059d0e4486e68d030ef66d9361885371277
- MD5 83abd5ec9bb592ef3feb8a82c21e1572
- SHA1 276cd60695ef259ab23cd3d40524de5bbd5f8f3a
- SHA512 535a36916706c93317837f78deea581ed8db002531ec11ec7790d1230976e4241b8aba078fcbe79b5da87153cf46ce71d7919564e0d5c9bc606ddfe0d8f1de2b
- SSDEEP 1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299NoyD:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7v
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000d00000001228a-10.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000d00000001228a-10.dat CryptoLocker_set1 - Executes dropped EXE 1 IoCs
pid Process 2552 hurok.exe - Loads dropped DLL 1 IoCs
pid Process 2068 2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of UnmapMainImage 2 IoCs
pid Process 2068 2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe 2552 hurok.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2068 wrote to memory of 2552 2068 2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe 28 PID 2068 wrote to memory of 2552 2068 2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe 28 PID 2068 wrote to memory of 2552 2068 2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe 28 PID 2068 wrote to memory of 2552 2068 2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe 28
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2068 -
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:2552
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path \Users\Admin\AppData\Local\Temp\hurok.exe
- Size 66KB
- SHA256 722d7d8ed54a25b0032038aeb10c42a789fe455beca7a0bda5aa70d6d978e627
- MD5 3786abea9540710f9e3b0fb170535fee
- SHA1 21ee11820cfb7b25fca88caaeabc7691e3be0dbc
- SHA512 d21cdc93b7d1972455b040e3389d996c9cfc386b9d1fed784c58e62468d12664647987926e8911519830a104128aeedc307c2c05870e0f4861d31b1594440fb7
- SSDEEP 1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299Noya:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7u
- MD5 SHA1 SHA512 SSDEEP