Analysis
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max time kernel
150s -
max time network
142s -
platform
windows10_x64 -
resource
win10v200722 -
submitted
04-08-2020 16:42
General
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Target
del_info-W8629822.xlsm
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Size
238KB
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MD5
ee54cfcfb1a4f10f27b597a37fbb33de
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SHA1
06b40ca6f7013057c4bc243c8636345e9aac786e
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SHA256
b7570f67d3d5a587e48f30fe62f2f2f04f60b65a21216a86ec062babc5a05fa6
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SHA512
4d9dd8cdddf14d8dd2a91d0bbf09945d6bfac9c5e25e67ae01c02b4309351bc079b85e319beed10b19dad11151f926bd3331c2fecd28466bc543eaf35e8877d4
Score
10/10
Malware Config
Signatures
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Suspicious use of SetWindowsHookEx 20 IoCs
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
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Suspicious behavior: EnumeratesProcesses 1 IoCs
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Blacklisted process makes network request 4 IoCs
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Enumerates system info in registry 2 TTPs 3 IoCs
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ostap
Ostap is a JS downloader, used to deliver other families.
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Suspicious use of AdjustPrivilegeToken 6 IoCs
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
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Suspicious use of WriteProcessMemory 2 IoCs
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Ostap JavaScript Downloader 1 IoCs
Ostap is a JavaScript downloader that's been active since 2016. It's used to deliver several families, inluding TrickBot
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JavaScript code in executable 1 IoCs
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Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\del_info-W8629822.xlsm"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\ms.fee.d\desktop-ini.jse"2⤵
- Blacklisted process makes network request
- Process spawned unexpected child process
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
36KB
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Filesize
4KB
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Filesize
36KB
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Filesize
4KB
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Filesize
36KB
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Filesize
12KB
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Filesize
36KB
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Filesize
44KB
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Filesize
36KB
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Filesize
32KB
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Filesize
44KB
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Filesize
44KB
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Filesize
44KB
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Filesize
4KB
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Filesize
44KB
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Filesize
32KB