Analysis
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max time kernel
149s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 03:39
General
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Target
PI List-pdf.exe
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Size
742KB
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MD5
f44eb63e27a1ecc5a17a22712898c003
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SHA1
65e320e9a7a9c72c98d3de771899fc45bc99388a
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SHA256
2485826ad6e01c5ae26b460a9152854b3a6780da46f4abbca35be5b0bd570eb3
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SHA512
a6355fe3a7c76c0dd504170afc68e5251b5488dfd32c893c7ae4a25657d61812bb5d6351d002565626a8d3245483559abff31e704cd69cfbbfdf5090d591d6a6
Malware Config
Extracted
C:\Users\Admin\AppData\Local\3B8E3C2477\Log.txt
masslogger
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main Payload 6 IoCs
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MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
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Looks for VirtualBox Guest Additions in registry 2 TTPs
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Looks for VMWare Tools registry key 2 TTPs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
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Suspicious behavior: EnumeratesProcesses 20 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 13 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PI List-pdf.exe"C:\Users\Admin\AppData\Local\Temp\PI List-pdf.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LNougonJUR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp957D.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PI List-pdf.exe"C:\Users\Admin\AppData\Local\Temp\PI List-pdf.exe"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5c07ed207b3fcb79371d34352b14c21eb
SHA13598967a79705b86d052330f8a18cd223f80187d
SHA2564baaa97121348b9813e2cac5d6a1b1e3b731a6d0cf9aa08fe561c3a15dfbc2a2
SHA51206231bdb9661664b9e0996389e9ddfce5a2203c670ae3593de1db2dca421cce5df25f6ddf8d51ca3c57cc6fadc0bed6fd7e8b43f2866d732dc0ee79142db5294
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Filesize
616KB
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Filesize
616KB
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Filesize
80KB
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Filesize
68KB
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Filesize
616KB
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Filesize
616KB
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Filesize
272KB
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Filesize
616KB
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Filesize
616KB
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Filesize
616KB
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Filesize
8KB
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Filesize
768KB
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Filesize
72KB
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Filesize
648KB