Analysis
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max time kernel
153s -
max time network
36s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
06/12/2022, 18:16
Static task
static1
Behavioral task
behavioral1
Sample
db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe
Resource
win7-20221111-en
windows7-x64
Behavioral task
behavioral2
Sample
db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
General
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Target
db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe
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Size
135KB
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MD5
4ab5b40249eee078e2ddb37f2f901660
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SHA1
cbdb30321ed14f94042df3ea6b9091acd72f4fa6
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SHA256
db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e
-
SHA512
10073491ce86d17849f1ca7cae386f00f7509b5661b25a2dace6345bc2b01cba0686a3c99407fe8e57ba1887fafc502033cc9bcec6db0d530802775fb98e3dfa
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SSDEEP
3072:KAaJdc3VsweCeXRzeSeVeEe0eDQ8jrTrm:raJdc3VsZR3Q8jrTr
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ydfiv.exe -
Executes dropped EXE 1 IoCs
pid Process 764 ydfiv.exe -
Loads dropped DLL 2 IoCs
pid Process 1368 db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe 1368 db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ydfiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\ydfiv = "C:\\Users\\Admin\\ydfiv.exe" ydfiv.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 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe 764 ydfiv.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1368 db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe 764 ydfiv.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1368 wrote to memory of 764 1368 db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe 28 PID 1368 wrote to memory of 764 1368 db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe 28 PID 1368 wrote to memory of 764 1368 db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe 28 PID 1368 wrote to memory of 764 1368 db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe 28 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27 PID 764 wrote to memory of 1368 764 ydfiv.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe"C:\Users\Admin\AppData\Local\Temp\db3cce7ac2518914afbea516e9968757046f028c4fee92617e082a45c589383e.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1368 -
C:\Users\Admin\ydfiv.exe"C:\Users\Admin\ydfiv.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
- Suspicious use of WriteProcessMemory
PID:764
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
135KB
MD5a000cc30177f0587f2bb595a3e45da1f
SHA1b8588867af37c277229b8eb5d95206253fe320ef
SHA2568d71ffd6a39aa504e7ed66198b0538be5a9acc6372e10c315e473349c22c9cd1
SHA512dc3dd33091c2dbb6144ba6a69eed95b484a6f0ac9acb6faf59780beae1ca58ae499c18d14e0eac9cb2e10b80bf3b9a475308a97be07a6fe5a063c971abd37324
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Filesize
135KB
MD5a000cc30177f0587f2bb595a3e45da1f
SHA1b8588867af37c277229b8eb5d95206253fe320ef
SHA2568d71ffd6a39aa504e7ed66198b0538be5a9acc6372e10c315e473349c22c9cd1
SHA512dc3dd33091c2dbb6144ba6a69eed95b484a6f0ac9acb6faf59780beae1ca58ae499c18d14e0eac9cb2e10b80bf3b9a475308a97be07a6fe5a063c971abd37324
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Filesize
135KB
MD5a000cc30177f0587f2bb595a3e45da1f
SHA1b8588867af37c277229b8eb5d95206253fe320ef
SHA2568d71ffd6a39aa504e7ed66198b0538be5a9acc6372e10c315e473349c22c9cd1
SHA512dc3dd33091c2dbb6144ba6a69eed95b484a6f0ac9acb6faf59780beae1ca58ae499c18d14e0eac9cb2e10b80bf3b9a475308a97be07a6fe5a063c971abd37324
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Filesize
135KB
MD5a000cc30177f0587f2bb595a3e45da1f
SHA1b8588867af37c277229b8eb5d95206253fe320ef
SHA2568d71ffd6a39aa504e7ed66198b0538be5a9acc6372e10c315e473349c22c9cd1
SHA512dc3dd33091c2dbb6144ba6a69eed95b484a6f0ac9acb6faf59780beae1ca58ae499c18d14e0eac9cb2e10b80bf3b9a475308a97be07a6fe5a063c971abd37324