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Analysis
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max time kernel
65s -
max time network
68s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
20/01/2024, 18:24
Behavioral task
behavioral1
Sample
судуыешфд с.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
судуыешфд с.exe
Resource
win10v2004-20231215-en
General
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Target
судуыешфд с.exe
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Size
134KB
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MD5
503f3a5d4022a3b571b08e10e54dd1cf
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SHA1
82a127195cce3a5315fb3e809ca0c57e38f9f996
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SHA256
0bf5b69ec22efaf0227f0579074bcf0b1d4b33403eb1bf9b4ca286d85b0893ef
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SHA512
21d9ae1e4cf09fb605df13165c462c79b79a4e8a98ef4387b2c8a76b8bfbeef00b78d05703b035bfa123809b5b0cb87c1ac31799d88e71d9f524bf18cf7c825d
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SSDEEP
3072:FV28wLn+yJpxUKKA8foBVaM8SKfbzxcwg7es6/Vsb8VKTu:K8wqZKGgBdUhcX7elbKTu
Malware Config
Signatures
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Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 1524 netsh.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation судуыешфд с.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eaa19211a94c8cffb531abfc08c0b590.exe 77$.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eaa19211a94c8cffb531abfc08c0b590.exe 77$.exe -
Executes dropped EXE 1 IoCs
pid Process 2692 77$.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\eaa19211a94c8cffb531abfc08c0b590 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\77$.exe\" .." 77$.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\eaa19211a94c8cffb531abfc08c0b590 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\77$.exe\" .." 77$.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Drops autorun.inf file 1 TTPs 5 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\autorun.inf 77$.exe File created D:\autorun.inf 77$.exe File created F:\autorun.inf 77$.exe File opened for modification F:\autorun.inf 77$.exe File created C:\autorun.inf 77$.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe 2692 77$.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2692 77$.exe -
Suspicious use of AdjustPrivilegeToken 13 IoCs
description pid Process Token: SeDebugPrivilege 2692 77$.exe Token: 33 2692 77$.exe Token: SeIncBasePriorityPrivilege 2692 77$.exe Token: 33 2692 77$.exe Token: SeIncBasePriorityPrivilege 2692 77$.exe Token: 33 2692 77$.exe Token: SeIncBasePriorityPrivilege 2692 77$.exe Token: 33 2692 77$.exe Token: SeIncBasePriorityPrivilege 2692 77$.exe Token: 33 2692 77$.exe Token: SeIncBasePriorityPrivilege 2692 77$.exe Token: 33 2692 77$.exe Token: SeIncBasePriorityPrivilege 2692 77$.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1700 wrote to memory of 2692 1700 судуыешфд с.exe 94 PID 1700 wrote to memory of 2692 1700 судуыешфд с.exe 94 PID 1700 wrote to memory of 2692 1700 судуыешфд с.exe 94 PID 2692 wrote to memory of 1524 2692 77$.exe 97 PID 2692 wrote to memory of 1524 2692 77$.exe 97 PID 2692 wrote to memory of 1524 2692 77$.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\судуыешфд с.exe"C:\Users\Admin\AppData\Local\Temp\судуыешфд с.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Users\Admin\AppData\Local\Temp\77$.exe"C:\Users\Admin\AppData\Local\Temp\77$.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\77$.exe" "77$.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:1524
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
134KB
MD5503f3a5d4022a3b571b08e10e54dd1cf
SHA182a127195cce3a5315fb3e809ca0c57e38f9f996
SHA2560bf5b69ec22efaf0227f0579074bcf0b1d4b33403eb1bf9b4ca286d85b0893ef
SHA51221d9ae1e4cf09fb605df13165c462c79b79a4e8a98ef4387b2c8a76b8bfbeef00b78d05703b035bfa123809b5b0cb87c1ac31799d88e71d9f524bf18cf7c825d