Analysis
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max time kernel
95s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07/09/2024, 00:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe
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Size
68KB
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MD5
0200604c300ed91e8953e8d4b7f28b16
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SHA1
a60f4f1789e33e3c21c794ed907a7cb8f3e69ac3
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SHA256
7c829d718616f670ec2326279bc83d5cd09fa82500b469371f16b6ddcf757f0c
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SHA512
5b7e8389bf77991a05bd2a7fb658d055dd81234422d7a0d1f4070b53714af95d20c804c79e7333b274c1fdf57aed58215a0e595fadf37e263b3ee74ee1f905d2
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SSDEEP
1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEn:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7f
Malware Config
Signatures
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation hurok.exe Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation 2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2740 hurok.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hurok.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 556 wrote to memory of 2740 556 2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe 85 PID 556 wrote to memory of 2740 556 2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe 85 PID 556 wrote to memory of 2740 556 2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-07_0200604c300ed91e8953e8d4b7f28b16_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:556 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2740
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
69KB
MD58da20094338d09caf9e1bc54856fdaa7
SHA1e0565248eacb5b4c7e2792e7b96b28ab52dec274
SHA25666ad34c58f1693670b04460746cdd5d08b5a65a5718d1b88b9967f0f371b942f
SHA51295ebf2a359de6145e91d6abae571f11548f23be77ba98f389b849ca01f24742f414e6a700ab3e87a88427d99eca30668ca5363e217a9cf4f2cc95cfe0ed8cc82