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Analysis
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max time kernel
151s -
max time network
106s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07/12/2022, 02:37
Static task
static1
Behavioral task
behavioral1
Sample
a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe
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Size
84KB
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MD5
14b6f6a16352d0ba860b0b283d439e52
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SHA1
31e23f4b32addbe0c255309ac662284458900133
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SHA256
a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d
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SHA512
4d88c079f0926032376a8a451c2d54aca64ad3ff471efaf7947d9776f6183ea83377e3fb6d210d778db3ffcc3372bef04ca2a20172e06f81023b706c39db74cb
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SSDEEP
1536:f94Oc5HBkohmTOWhcPYZxAG3pfd48CArrprc8:14hHhmTOWhcAZxAql68
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" beruf.exe -
Executes dropped EXE 1 IoCs
pid Process 2264 beruf.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /l" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /d" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /c" beruf.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /m" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /g" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /h" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /z" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /f" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /i" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /u" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /g" a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /n" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /w" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /q" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /r" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /b" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /p" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /j" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /v" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /a" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /x" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /s" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /t" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /e" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /y" beruf.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /o" beruf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\beruf = "C:\\Users\\Admin\\beruf.exe /k" beruf.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 5036 a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe 5036 a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe 2264 beruf.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5036 a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe 2264 beruf.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5036 wrote to memory of 2264 5036 a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe 81 PID 5036 wrote to memory of 2264 5036 a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe 81 PID 5036 wrote to memory of 2264 5036 a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe"C:\Users\Admin\AppData\Local\Temp\a8a0a753ca6de6d33665dcd5b78c2f64554790cfe589e44261128ec9ebcdcd8d.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5036 -
C:\Users\Admin\beruf.exe"C:\Users\Admin\beruf.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:2264
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
84KB
MD571dc97e12bd9aa3c83560374b3644544
SHA19efa05704206fe75ee2e733abddbf332301366bd
SHA256330eb2a78e8fb3a79e952c86027591bd4888925a4e3325b084a9a3b299c255ee
SHA5128b8816a001f6413dac9eba8691cb6e3cdec4e0a74bb0d2fa16083c4ed955e1a222cd10c602ec4924a977d10875faa9296dfa5451061238254a0201fc5e3b62e7
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Filesize
84KB
MD571dc97e12bd9aa3c83560374b3644544
SHA19efa05704206fe75ee2e733abddbf332301366bd
SHA256330eb2a78e8fb3a79e952c86027591bd4888925a4e3325b084a9a3b299c255ee
SHA5128b8816a001f6413dac9eba8691cb6e3cdec4e0a74bb0d2fa16083c4ed955e1a222cd10c602ec4924a977d10875faa9296dfa5451061238254a0201fc5e3b62e7