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Analysis
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max time kernel
27s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 10:51
Static task
static1
Behavioral task
behavioral1
Sample
fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe
Resource
win10v2004-20220812-en
General
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Target
fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe
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Size
90KB
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MD5
6012cd2cd53b7146d98d7dc9a35a915c
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SHA1
483be2dbaffcb1d5bc64b17f5befb7697eac42d8
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SHA256
fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f
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SHA512
20b1089ff481374d70d1eaf9a75a9bf46099e0ad3f9c3bb6f2c4df58cea8bcc83c19363a73c82d4a4bad2db3870e99212d35c888a9cf6627666ffa5b654abe88
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SSDEEP
1536:RcgKj/QfjpUK+OtwQR5LY8eRH2ZyqmTS/0ekBdHHJ2ML5BDYcfbU:REAr+OtwQRJyH2IbG+dJ2GThbU
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe" fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe -
resource yara_rule behavioral1/memory/1668-55-0x0000000000400000-0x0000000000419000-memory.dmp upx behavioral1/memory/1668-57-0x0000000000400000-0x0000000000419000-memory.dmp upx behavioral1/memory/1668-58-0x0000000000400000-0x0000000000419000-memory.dmp upx behavioral1/memory/1668-61-0x0000000000400000-0x0000000000419000-memory.dmp upx behavioral1/memory/1668-62-0x0000000000400000-0x0000000000419000-memory.dmp upx behavioral1/memory/1668-63-0x0000000000400000-0x0000000000419000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Shell22 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe" fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2032 set thread context of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27 -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2032 wrote to memory of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27 PID 2032 wrote to memory of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27 PID 2032 wrote to memory of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27 PID 2032 wrote to memory of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27 PID 2032 wrote to memory of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27 PID 2032 wrote to memory of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27 PID 2032 wrote to memory of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27 PID 2032 wrote to memory of 1668 2032 fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe"C:\Users\Admin\AppData\Local\Temp\fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Local\Temp\fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe"C:\Users\Admin\AppData\Local\Temp\fb20d8c51a6b8aeabb76af3edf7135b1f8e1a6bf773b125fc3bd198335f2c89f.exe"2⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
PID:1668
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