Analysis
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max time kernel
74s -
max time network
134s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 12:07
Static task
static1
Behavioral task
behavioral1
Sample
PETRONAS.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
PETRONAS.exe
Resource
win10v2004-20220414-en
General
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Target
PETRONAS.exe
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Size
1.1MB
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MD5
2937c3e8202ca5cbf7122653dfcdfc12
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SHA1
30cef95c63347fe0d18f8da85d4fed786839d867
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SHA256
9ee524a368973c7ab34281d50a8990a77a4c3c842c4db945cab0b7102714d5bd
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SHA512
e8e78f050270122889b78c59bd7f0f40e4039b69160fed6f1d4f8653def2e2c58f291ccb77682b5ab82f66cff7132aa39bce46e9054187c592edf8e711bb8db6
Malware Config
Extracted
C:\Users\Admin\AppData\Local\79FE0CC911\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 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:
PETRONAS.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation PETRONAS.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:
PETRONAS.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook PETRONAS.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook PETRONAS.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook PETRONAS.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook PETRONAS.exe Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.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:
PETRONAS.exedescription pid process target process PID 1504 set thread context of 1984 1504 PETRONAS.exe PETRONAS.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
PETRONAS.exepid process 1984 PETRONAS.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
PETRONAS.exepid process 1984 PETRONAS.exe 1984 PETRONAS.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
PETRONAS.exedescription pid process Token: SeDebugPrivilege 1984 PETRONAS.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PETRONAS.exepid process 1984 PETRONAS.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
PETRONAS.exedescription pid process target process PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe PID 1504 wrote to memory of 1984 1504 PETRONAS.exe PETRONAS.exe -
outlook_office_path 1 IoCs
Processes:
PETRONAS.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe -
outlook_win_path 1 IoCs
Processes:
PETRONAS.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PETRONAS.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PETRONAS.exe"C:\Users\Admin\AppData\Local\Temp\PETRONAS.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PETRONAS.exe"C:\Users\Admin\AppData\Local\Temp\PETRONAS.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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1504-54-0x0000000000B70000-0x0000000000C86000-memory.dmpFilesize
1.1MB
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memory/1504-55-0x0000000075271000-0x0000000075273000-memory.dmpFilesize
8KB
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memory/1504-56-0x00000000004A0000-0x00000000004B2000-memory.dmpFilesize
72KB
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memory/1504-57-0x00000000055C0000-0x0000000005692000-memory.dmpFilesize
840KB
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memory/1504-58-0x0000000005690000-0x0000000005748000-memory.dmpFilesize
736KB
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memory/1984-59-0x0000000000400000-0x00000000004B8000-memory.dmpFilesize
736KB
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memory/1984-60-0x0000000000400000-0x00000000004B8000-memory.dmpFilesize
736KB
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memory/1984-62-0x0000000000400000-0x00000000004B8000-memory.dmpFilesize
736KB
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memory/1984-63-0x0000000000400000-0x00000000004B8000-memory.dmpFilesize
736KB
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memory/1984-64-0x0000000000400000-0x00000000004B8000-memory.dmpFilesize
736KB
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memory/1984-65-0x00000000004B33BE-mapping.dmp
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memory/1984-67-0x0000000000400000-0x00000000004B8000-memory.dmpFilesize
736KB
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memory/1984-69-0x0000000000400000-0x00000000004B8000-memory.dmpFilesize
736KB
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memory/1984-70-0x0000000002170000-0x00000000021E8000-memory.dmpFilesize
480KB
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memory/1984-72-0x0000000002135000-0x0000000002146000-memory.dmpFilesize
68KB