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Analysis
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max time kernel
151s -
max time network
81s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01/12/2022, 23:25
Static task
static1
Behavioral task
behavioral1
Sample
4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe
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Size
88KB
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MD5
64162576b343cce9fda6eda3a19e5750
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SHA1
e273027f60628a9e583b631bea41b557a609b957
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SHA256
4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25
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SHA512
cc3a8e6aebbff71b4d4742e829c4c5caa0d86a3f8d62206a62eb54113989d14b7c3919c67665a14ccec91877404a162526a59ad9cbc4203774d26883893ba3e9
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SSDEEP
1536:NlZhEUdUsyvIyWGgXQAKkOBY5GCz4Z6wKDOFJGUzOZqZBYagHx++:1PE944EtU4qZ+a
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" zkzux.exe -
Executes dropped EXE 1 IoCs
pid Process 520 zkzux.exe -
Loads dropped DLL 2 IoCs
pid Process 1428 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe 1428 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /b" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /r" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /q" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /u" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /g" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /m" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /i" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /n" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /h" zkzux.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /a" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /j" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /d" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /w" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /s" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /p" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /l" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /t" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /x" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /f" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /y" 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /o" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /z" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /y" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /v" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /e" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /k" zkzux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zkzux = "C:\\Users\\Admin\\zkzux.exe /c" zkzux.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1428 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe 520 zkzux.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1428 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe 520 zkzux.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1428 wrote to memory of 520 1428 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe 28 PID 1428 wrote to memory of 520 1428 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe 28 PID 1428 wrote to memory of 520 1428 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe 28 PID 1428 wrote to memory of 520 1428 4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe"C:\Users\Admin\AppData\Local\Temp\4b84a4004fa52402e3ca6ca317b27a723f0d268de2cd5ef7009bd9b5debf7e25.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Users\Admin\zkzux.exe"C:\Users\Admin\zkzux.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:520
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
88KB
MD542011cd4c98e3e6793ec7f3abc2e1426
SHA18870f95ad46a413ea6b2709afc6edefd237970dd
SHA25601a102d8675fda93fa3a54db45b6775e79bbf9c1464729ad0425c802cf91642a
SHA512e35d5dbc1a4da223e05924f74fd25191a318cd59994ce25c63589675a29cdeea4a20098d7c917a24dbe62bf1ec04470d6e891d0ec8d9c92adc7fd4c40603aa19
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Filesize
88KB
MD542011cd4c98e3e6793ec7f3abc2e1426
SHA18870f95ad46a413ea6b2709afc6edefd237970dd
SHA25601a102d8675fda93fa3a54db45b6775e79bbf9c1464729ad0425c802cf91642a
SHA512e35d5dbc1a4da223e05924f74fd25191a318cd59994ce25c63589675a29cdeea4a20098d7c917a24dbe62bf1ec04470d6e891d0ec8d9c92adc7fd4c40603aa19
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Filesize
88KB
MD542011cd4c98e3e6793ec7f3abc2e1426
SHA18870f95ad46a413ea6b2709afc6edefd237970dd
SHA25601a102d8675fda93fa3a54db45b6775e79bbf9c1464729ad0425c802cf91642a
SHA512e35d5dbc1a4da223e05924f74fd25191a318cd59994ce25c63589675a29cdeea4a20098d7c917a24dbe62bf1ec04470d6e891d0ec8d9c92adc7fd4c40603aa19
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Filesize
88KB
MD542011cd4c98e3e6793ec7f3abc2e1426
SHA18870f95ad46a413ea6b2709afc6edefd237970dd
SHA25601a102d8675fda93fa3a54db45b6775e79bbf9c1464729ad0425c802cf91642a
SHA512e35d5dbc1a4da223e05924f74fd25191a318cd59994ce25c63589675a29cdeea4a20098d7c917a24dbe62bf1ec04470d6e891d0ec8d9c92adc7fd4c40603aa19