Analysis
- max time kernel
83s - max time network
120s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
12/10/2021, 16:29
Static task
static1
Behavioral task
behavioral1
Sample
09ab0907323d5de77ebe2891813dc5d0.exe
Resource
win7-en-20210920
0 signatures
0 seconds
General
- Target 09ab0907323d5de77ebe2891813dc5d0.exe
- Size 635KB
- Sample211012-ty883acgd9
- SHA256 152c854e0e028eaa43bef46d7375d5704cf43f2c22a0354d7757e7cf5cdc3a89
- MD5 09ab0907323d5de77ebe2891813dc5d0
- SHA1 edbee14a3f89d075e152013d48d8dd794d08c254
- SHA512 1ab37e6af947694a2140c67d23b80121a23f742374c794bb47e5bae20ed46bbefb1ecf24a90d28f058140f1ccda693fdf90690c7090250c0dfa7c5bfc90269c9
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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vidar
Version
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41.3
Botnet
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1008
C2
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https://mas.to/@oleg98
Attributes
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profile_id
1008
Signatures
- Vidar Stealer 2 IoCs
resource yara_rule behavioral2/memory/2384-116-0x00000000005E0000-0x000000000072A000-memory.dmp family_vidar behavioral2/memory/2384-117-0x0000000000400000-0x00000000004D9000-memory.dmp family_vidar - Downloads MZ/PE file
- Loads dropped DLL 2 IoCs
pid Process 2384 09ab0907323d5de77ebe2891813dc5d0.exe 2384 09ab0907323d5de77ebe2891813dc5d0.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 09ab0907323d5de77ebe2891813dc5d0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 09ab0907323d5de77ebe2891813dc5d0.exe - Delays execution with timeout.exe 1 IoCs
pid Process 3544 timeout.exe - Kills process with taskkill 1 IoCs
pid Process 3980 taskkill.exe - Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2384 09ab0907323d5de77ebe2891813dc5d0.exe 2384 09ab0907323d5de77ebe2891813dc5d0.exe 2384 09ab0907323d5de77ebe2891813dc5d0.exe 2384 09ab0907323d5de77ebe2891813dc5d0.exe 2384 09ab0907323d5de77ebe2891813dc5d0.exe 2384 09ab0907323d5de77ebe2891813dc5d0.exe 2384 09ab0907323d5de77ebe2891813dc5d0.exe 2384 09ab0907323d5de77ebe2891813dc5d0.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3980 taskkill.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2384 wrote to memory of 1020 2384 09ab0907323d5de77ebe2891813dc5d0.exe 70 PID 2384 wrote to memory of 1020 2384 09ab0907323d5de77ebe2891813dc5d0.exe 70 PID 2384 wrote to memory of 1020 2384 09ab0907323d5de77ebe2891813dc5d0.exe 70 PID 1020 wrote to memory of 3980 1020 cmd.exe 72 PID 1020 wrote to memory of 3980 1020 cmd.exe 72 PID 1020 wrote to memory of 3980 1020 cmd.exe 72 PID 1020 wrote to memory of 3544 1020 cmd.exe 74 PID 1020 wrote to memory of 3544 1020 cmd.exe 74 PID 1020 wrote to memory of 3544 1020 cmd.exe 74
Processes
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C:\Users\Admin\AppData\Local\Temp\09ab0907323d5de77ebe2891813dc5d0.exe"C:\Users\Admin\AppData\Local\Temp\09ab0907323d5de77ebe2891813dc5d0.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im 09ab0907323d5de77ebe2891813dc5d0.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\09ab0907323d5de77ebe2891813dc5d0.exe" & del C:\ProgramData\*.dll & exit2⤵
- Suspicious use of WriteProcessMemory
PID:1020 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im 09ab0907323d5de77ebe2891813dc5d0.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3980
-
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C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:3544
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