Analysis
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max time kernel
150s -
max time network
79s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 19:58
Static task
static1
Behavioral task
behavioral1
Sample
98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
2 signatures
150 seconds
General
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Target
98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe
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Size
334KB
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MD5
4bc053764f7bf896b26e779550556bf0
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SHA1
2300c6ac892c8e6ebf34e8f2b158e2470a72e3ba
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SHA256
98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532
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SHA512
ebe639e44611bbf2041f8a0ad8075d085ec832996fa4149925d67ac1601a45618aceff991a58e3ec2a9d88e8f3b4cb341c09b5fff2b71a1c9cce7550cc367a45
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SSDEEP
3072:HwJAuQ+DHG9hi0Isw0YtUNS4aHFjOFS3/LKOvlRPJKaeCRsG56rWkqWc2ks4Iz8h:F+y9hApmNvuO6WyrZuG56rWkzOsT4d
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" 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yoher.exe -
Executes dropped EXE 1 IoCs
pid Process 1340 yoher.exe -
Loads dropped DLL 2 IoCs
pid Process 288 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe 288 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.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\yoher = "C:\\Users\\Admin\\yoher.exe /d" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /q" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /k" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /n" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /b" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /u" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /a" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /c" 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /m" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /y" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /s" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /i" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /j" yoher.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /h" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /z" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /w" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /o" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /f" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /t" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /x" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /c" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /g" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /p" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /e" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /v" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /r" yoher.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yoher = "C:\\Users\\Admin\\yoher.exe /l" yoher.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum yoher.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 yoher.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 288 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe 1340 yoher.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 288 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe 1340 yoher.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 288 wrote to memory of 1340 288 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe 27 PID 288 wrote to memory of 1340 288 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe 27 PID 288 wrote to memory of 1340 288 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe 27 PID 288 wrote to memory of 1340 288 98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe"C:\Users\Admin\AppData\Local\Temp\98fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:288 -
C:\Users\Admin\yoher.exe"C:\Users\Admin\yoher.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1340
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
334KB
MD54bc053764f7bf896b26e779550556bf0
SHA12300c6ac892c8e6ebf34e8f2b158e2470a72e3ba
SHA25698fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532
SHA512ebe639e44611bbf2041f8a0ad8075d085ec832996fa4149925d67ac1601a45618aceff991a58e3ec2a9d88e8f3b4cb341c09b5fff2b71a1c9cce7550cc367a45
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Filesize
334KB
MD54bc053764f7bf896b26e779550556bf0
SHA12300c6ac892c8e6ebf34e8f2b158e2470a72e3ba
SHA25698fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532
SHA512ebe639e44611bbf2041f8a0ad8075d085ec832996fa4149925d67ac1601a45618aceff991a58e3ec2a9d88e8f3b4cb341c09b5fff2b71a1c9cce7550cc367a45
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Filesize
334KB
MD54bc053764f7bf896b26e779550556bf0
SHA12300c6ac892c8e6ebf34e8f2b158e2470a72e3ba
SHA25698fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532
SHA512ebe639e44611bbf2041f8a0ad8075d085ec832996fa4149925d67ac1601a45618aceff991a58e3ec2a9d88e8f3b4cb341c09b5fff2b71a1c9cce7550cc367a45
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Filesize
334KB
MD54bc053764f7bf896b26e779550556bf0
SHA12300c6ac892c8e6ebf34e8f2b158e2470a72e3ba
SHA25698fc653afd0a17d378a8aebcfb2601c576160a1dce90535e3c88520b82148532
SHA512ebe639e44611bbf2041f8a0ad8075d085ec832996fa4149925d67ac1601a45618aceff991a58e3ec2a9d88e8f3b4cb341c09b5fff2b71a1c9cce7550cc367a45