Analysis
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max time kernel
119s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
04-10-2024 10:57
Static task
static1
Behavioral task
behavioral1
Sample
39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe
Resource
win10v2004-20240802-en
General
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Target
39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe
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Size
171KB
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MD5
a8acf988cb6a5c153a65a4b54a3181c0
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SHA1
8f8d6fac4fa529bdc09602452fb35ac4a50724d4
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SHA256
39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9
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SHA512
9b6361ab7d489886ebbbcc79307b22580b2531afbbb033175e4a47fce80c3a191745ed2956a23eab3d044d6ad965b4b9173e4a53594d8834ea5b1bfbeeadd2e9
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SSDEEP
3072:Mh9fEKZLk/lvI6enmhUcUygISmrEm0JgEh/QwbJcQBEnq0W4yc6JCuIdM5+iHg:MEP/hHenK5NSmglbh/Qw0X6jF
Malware Config
Signatures
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Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat randomribbon.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language randomribbon.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language randomribbon.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe -
Modifies data under HKEY_USERS 21 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00bf000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 randomribbon.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-13-a0-b4-39-bb randomribbon.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BA60822C-E19F-47B4-9712-7F33DCF809AB}\e6-13-a0-b4-39-bb randomribbon.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BA60822C-E19F-47B4-9712-7F33DCF809AB}\WpadDecision = "0" randomribbon.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BA60822C-E19F-47B4-9712-7F33DCF809AB}\WpadNetworkName = "Network 3" randomribbon.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings randomribbon.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" randomribbon.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BA60822C-E19F-47B4-9712-7F33DCF809AB} randomribbon.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-13-a0-b4-39-bb\WpadDecisionTime = 307558364c16db01 randomribbon.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" randomribbon.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad randomribbon.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BA60822C-E19F-47B4-9712-7F33DCF809AB}\WpadDecisionTime = 307558364c16db01 randomribbon.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" randomribbon.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings randomribbon.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 randomribbon.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BA60822C-E19F-47B4-9712-7F33DCF809AB}\WpadDecisionReason = "1" randomribbon.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-13-a0-b4-39-bb\WpadDecisionReason = "1" randomribbon.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections randomribbon.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 randomribbon.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix randomribbon.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-13-a0-b4-39-bb\WpadDecision = "0" randomribbon.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2808 randomribbon.exe 2808 randomribbon.exe 2808 randomribbon.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2744 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe -
Suspicious use of UnmapMainImage 4 IoCs
pid Process 2276 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe 2744 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe 2816 randomribbon.exe 2808 randomribbon.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2276 wrote to memory of 2744 2276 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe 30 PID 2276 wrote to memory of 2744 2276 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe 30 PID 2276 wrote to memory of 2744 2276 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe 30 PID 2276 wrote to memory of 2744 2276 39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe 30 PID 2816 wrote to memory of 2808 2816 randomribbon.exe 32 PID 2816 wrote to memory of 2808 2816 randomribbon.exe 32 PID 2816 wrote to memory of 2808 2816 randomribbon.exe 32 PID 2816 wrote to memory of 2808 2816 randomribbon.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe"C:\Users\Admin\AppData\Local\Temp\39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Users\Admin\AppData\Local\Temp\39afc2c85f7e4824b7692a5008fc22af5f32bde9d933f2a6b8f207657f937ba9N.exe--1aa911a22⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
PID:2744
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C:\Windows\SysWOW64\randomribbon.exe"C:\Windows\SysWOW64\randomribbon.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2816 -
C:\Windows\SysWOW64\randomribbon.exe--5b1869eb2⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:2808
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