Analysis
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max time kernel
145s -
max time network
118s -
platform
windows10_x64 -
resource
win10 -
submitted
10-07-2020 13:44
Static task
static1
Behavioral task
behavioral1
Sample
scan copy-80808_pdf.gz.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
scan copy-80808_pdf.gz.exe
Resource
win10
General
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Target
scan copy-80808_pdf.gz.exe
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Size
828KB
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MD5
8ddf8894105209206407a0656852fff1
-
SHA1
dbd8808d5f17bb0709014d4c3d79a64339815b4f
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SHA256
a19573af6e0050d407b1dbd3bfb2966484d81e6cb6bf99059db0802d0bd2d5c2
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SHA512
c9443c13b9ade56261d6ec0e3f1b240717ccda17cb0a718b3a101dbd339eb92f3e771bf4a97df79eb08cc0ba9e76179d5486c245f965c368cb411740cabbc426
Malware Config
Extracted
Protocol: smtp- Host:
smtp.bnb-spa.com - Port:
587 - Username:
[email protected] - Password:
}iPxp@l#21aE
Signatures
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Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
scan copy-80808_pdf.gz.exepid process 3100 scan copy-80808_pdf.gz.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
scan copy-80808_pdf.gz.exedescription pid process Token: SeDebugPrivilege 3864 scan copy-80808_pdf.gz.exe -
Drops startup file 1 IoCs
Processes:
notepad.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\as.vbs notepad.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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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
scan copy-80808_pdf.gz.exescan copy-80808_pdf.gz.exepid process 3100 scan copy-80808_pdf.gz.exe 3100 scan copy-80808_pdf.gz.exe 3864 scan copy-80808_pdf.gz.exe 3864 scan copy-80808_pdf.gz.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
scan copy-80808_pdf.gz.exedescription pid process target process PID 3100 wrote to memory of 3832 3100 scan copy-80808_pdf.gz.exe notepad.exe PID 3100 wrote to memory of 3832 3100 scan copy-80808_pdf.gz.exe notepad.exe PID 3100 wrote to memory of 3832 3100 scan copy-80808_pdf.gz.exe notepad.exe PID 3100 wrote to memory of 3832 3100 scan copy-80808_pdf.gz.exe notepad.exe PID 3100 wrote to memory of 3832 3100 scan copy-80808_pdf.gz.exe notepad.exe PID 3100 wrote to memory of 3864 3100 scan copy-80808_pdf.gz.exe scan copy-80808_pdf.gz.exe PID 3100 wrote to memory of 3864 3100 scan copy-80808_pdf.gz.exe scan copy-80808_pdf.gz.exe PID 3100 wrote to memory of 3864 3100 scan copy-80808_pdf.gz.exe scan copy-80808_pdf.gz.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
scan copy-80808_pdf.gz.exedescription pid process target process PID 3100 set thread context of 3864 3100 scan copy-80808_pdf.gz.exe scan copy-80808_pdf.gz.exe -
UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
Processes:
resource yara_rule behavioral2/memory/3864-1-0x0000000000400000-0x00000000004AF000-memory.dmp upx behavioral2/memory/3864-3-0x0000000000400000-0x00000000004AF000-memory.dmp upx behavioral2/memory/3864-4-0x0000000000400000-0x00000000004AF000-memory.dmp upx -
Adds Run entry to start application 2 TTPs 1 IoCs
Processes:
scan copy-80808_pdf.gz.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mymp4 = "C:\\Users\\Admin\\AppData\\Roaming\\Mymp4\\Mymp4.exe" scan copy-80808_pdf.gz.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
Processes
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C:\Users\Admin\AppData\Local\Temp\scan copy-80808_pdf.gz.exe"C:\Users\Admin\AppData\Local\Temp\scan copy-80808_pdf.gz.exe"1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:3100 -
C:\Windows\SysWOW64\notepad.exe"C:\Windows\system32\notepad.exe"2⤵
- Drops startup file
PID:3832 -
C:\Users\Admin\AppData\Local\Temp\scan copy-80808_pdf.gz.exe"C:\Users\Admin\AppData\Local\Temp\scan copy-80808_pdf.gz.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Adds Run entry to start application
PID:3864