Analysis
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max time kernel
72s -
max time network
129s -
platform
windows7_x64 -
resource
win7v200722 -
submitted
30-08-2020 06:01
Static task
static1
Behavioral task
behavioral1
Sample
60091743pdf.exe
Resource
win7v200722
Behavioral task
behavioral2
Sample
60091743pdf.exe
Resource
win10
General
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Target
60091743pdf.exe
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Size
1.1MB
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MD5
c9b3ce0f3c3350621b6df632369a58f8
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SHA1
ac29d51d75264cad92760259a8b2a4c358516975
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SHA256
9bf180bb7b3cc0fcc6d01b68e2aa82d2f853e081ec71e34942d875324a2415b4
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SHA512
96a329657409994e8485ded30d9dce953ee19489ab6242df62a2cade14ea107b328043c7ec7c024c3151370c41a16e12fa3ef3bc5371796d436c723b8a3da690
Malware Config
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 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1576-8-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/1576-9-0x0000000000481C2E-mapping.dmp family_masslogger behavioral1/memory/1576-10-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/1576-11-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
60091743pdf.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Control Panel\International\Geo\Nation 60091743pdf.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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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
60091743pdf.exedescription pid Process procid_target PID 868 set thread context of 1576 868 60091743pdf.exe 30 -
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
Processes:
60091743pdf.exepid Process 1576 60091743pdf.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
60091743pdf.exe60091743pdf.exepid Process 868 60091743pdf.exe 1576 60091743pdf.exe 1576 60091743pdf.exe 1576 60091743pdf.exe 1576 60091743pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
60091743pdf.exe60091743pdf.exedescription pid Process Token: SeDebugPrivilege 868 60091743pdf.exe Token: SeDebugPrivilege 1576 60091743pdf.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
60091743pdf.exepid Process 1576 60091743pdf.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
60091743pdf.exedescription pid Process procid_target PID 868 wrote to memory of 1608 868 60091743pdf.exe 28 PID 868 wrote to memory of 1608 868 60091743pdf.exe 28 PID 868 wrote to memory of 1608 868 60091743pdf.exe 28 PID 868 wrote to memory of 1608 868 60091743pdf.exe 28 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30 PID 868 wrote to memory of 1576 868 60091743pdf.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\60091743pdf.exe"C:\Users\Admin\AppData\Local\Temp\60091743pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:868 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nwwFxKnJy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A26.tmp"2⤵
- Creates scheduled task(s)
PID:1608
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C:\Users\Admin\AppData\Local\Temp\60091743pdf.exe"C:\Users\Admin\AppData\Local\Temp\60091743pdf.exe"2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1576
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
f70d9bb96b15c557a3ead5fdba69bec3
SHA1da09aee283c311ade112ae38d3ae62f5c3dfed67
SHA256f274c34195a537054b112980634071ab6c8f0cd2a63d48ee3d8e80ce3e09e064
SHA5128148c50be54076e0a4237d217b42fb9e27673dde1d0b02636abc93adc5e435491d2697fd6cac59309fabc9d3085178513859ed2c9a7b8627e3fbc231df3a1db4