Analysis
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max time kernel
69s -
max time network
115s -
platform
windows10_x64 -
resource
win10 -
submitted
09-07-2020 12:20
Static task
static1
Behavioral task
behavioral1
Sample
Bank Document_pdf.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
Bank Document_pdf.exe
Resource
win10
General
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Target
Bank Document_pdf.exe
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Size
1.1MB
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MD5
40f4e14fd6f7c8e22f1c602f59beb72f
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SHA1
b7d5ab968dfc8587c663b74233a58f9fe411dda6
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SHA256
9fc5b3395c0fea9aec9e7c6bfce346acd3271500c1cc085859c4270f91e30a94
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SHA512
2cd9eb1a572deb01b565320427b2434dd378959c7d1d6cbbb8164d928a71f8b4d79de082001c2fc7522d2b25cd63ba91da9d5b59a83f3708e8bcf03795ba43ba
Malware Config
Signatures
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Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3428 Bank Document_pdf.exe -
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
yara_rule masslogger_log_file -
UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
resource yara_rule behavioral2/memory/3428-0-0x0000000000400000-0x0000000000541000-memory.dmp upx behavioral2/memory/3428-2-0x0000000000400000-0x0000000000541000-memory.dmp upx behavioral2/memory/3428-3-0x0000000000400000-0x0000000000541000-memory.dmp upx -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3908 set thread context of 3428 3908 Bank Document_pdf.exe 67 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3908 wrote to memory of 3428 3908 Bank Document_pdf.exe 67 PID 3908 wrote to memory of 3428 3908 Bank Document_pdf.exe 67 PID 3908 wrote to memory of 3428 3908 Bank Document_pdf.exe 67 -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3908 Bank Document_pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3428 Bank Document_pdf.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3428 Bank Document_pdf.exe -
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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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3908 Bank Document_pdf.exe 3908 Bank Document_pdf.exe 3428 Bank Document_pdf.exe 3428 Bank Document_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Bank Document_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Bank Document_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
PID:3908 -
C:\Users\Admin\AppData\Local\Temp\Bank Document_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Bank Document_pdf.exe"2⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
PID:3428
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