Analysis
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max time kernel
119s -
max time network
197s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 01:53
Static task
static1
Behavioral task
behavioral1
Sample
ZZW00008112020ZD1_DPILpdf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
ZZW00008112020ZD1_DPILpdf.exe
Resource
win10v2004-20220414-en
General
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Target
ZZW00008112020ZD1_DPILpdf.exe
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Size
1002KB
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MD5
a556bc0ce0bcf11af90c5405f3aa9067
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SHA1
c76eeca4dbff9834820c7c4373fd6ad230f7b5b6
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SHA256
f1ce8a3c72d7e45300b38de923c0ad45c466ef17a44bec4aad85a4672690eb22
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SHA512
783e81cc6c8aa0c8734008e792963f066230648b77b5562ccd97069a9f2a54ac7d4137d93afc2f5b3763e32be07e67a23a1f039d656157360841fb4ae8ab985e
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
Processes:
resource yara_rule behavioral1/memory/1496-63-0x0000000000400000-0x00000000004B8000-memory.dmp family_masslogger behavioral1/memory/1496-65-0x0000000000400000-0x00000000004B8000-memory.dmp family_masslogger behavioral1/memory/1496-64-0x0000000000400000-0x00000000004B8000-memory.dmp family_masslogger behavioral1/memory/1496-66-0x00000000004B2EDE-mapping.dmp family_masslogger behavioral1/memory/1496-68-0x0000000000400000-0x00000000004B8000-memory.dmp family_masslogger behavioral1/memory/1496-70-0x0000000000400000-0x00000000004B8000-memory.dmp family_masslogger -
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
Processes:
yara_rule masslogger_log_file -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
ZZW00008112020ZD1_DPILpdf.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation ZZW00008112020ZD1_DPILpdf.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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Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs
Processes:
ZZW00008112020ZD1_DPILpdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe Key created \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe -
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:
ZZW00008112020ZD1_DPILpdf.exedescription pid process target process PID 624 set thread context of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe -
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: EnumeratesProcesses 6 IoCs
Processes:
ZZW00008112020ZD1_DPILpdf.exeZZW00008112020ZD1_DPILpdf.exepid process 624 ZZW00008112020ZD1_DPILpdf.exe 624 ZZW00008112020ZD1_DPILpdf.exe 624 ZZW00008112020ZD1_DPILpdf.exe 1496 ZZW00008112020ZD1_DPILpdf.exe 1496 ZZW00008112020ZD1_DPILpdf.exe 1496 ZZW00008112020ZD1_DPILpdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
ZZW00008112020ZD1_DPILpdf.exeZZW00008112020ZD1_DPILpdf.exedescription pid process Token: SeDebugPrivilege 624 ZZW00008112020ZD1_DPILpdf.exe Token: SeDebugPrivilege 1496 ZZW00008112020ZD1_DPILpdf.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
ZZW00008112020ZD1_DPILpdf.exedescription pid process target process PID 624 wrote to memory of 1776 624 ZZW00008112020ZD1_DPILpdf.exe schtasks.exe PID 624 wrote to memory of 1776 624 ZZW00008112020ZD1_DPILpdf.exe schtasks.exe PID 624 wrote to memory of 1776 624 ZZW00008112020ZD1_DPILpdf.exe schtasks.exe PID 624 wrote to memory of 1776 624 ZZW00008112020ZD1_DPILpdf.exe schtasks.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe PID 624 wrote to memory of 1496 624 ZZW00008112020ZD1_DPILpdf.exe ZZW00008112020ZD1_DPILpdf.exe -
outlook_office_path 1 IoCs
Processes:
ZZW00008112020ZD1_DPILpdf.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe -
outlook_win_path 1 IoCs
Processes:
ZZW00008112020ZD1_DPILpdf.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ZZW00008112020ZD1_DPILpdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ZZW00008112020ZD1_DPILpdf.exe"C:\Users\Admin\AppData\Local\Temp\ZZW00008112020ZD1_DPILpdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:624 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IRPLvFRsiE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB6C2.tmp"2⤵
- Creates scheduled task(s)
PID:1776 -
C:\Users\Admin\AppData\Local\Temp\ZZW00008112020ZD1_DPILpdf.exe"{path}"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1496
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD521b5a1799b1ed3844210b47f426ee2f2
SHA1e9fe1059be5dab98b3b94603aa31c309169215f1
SHA256ff1d057a164ee530f5401a9706df3030ae660244a90868bf222c6b233004bf89
SHA512e347eb3400eff137a7c5fd7161c1300387c605242e804ee09031cbfece35f916698ad0318f6bccda34d97039051942f1d89c616f586b68d55be042885a93abe6