Analysis
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max time kernel
115s -
max time network
106s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 02:09
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Purchase Order.exe
Resource
win10v2004-20220414-en
General
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Target
Purchase Order.exe
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Size
998KB
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MD5
c4eb73549663f5a0925826350281a9f7
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SHA1
6baef77aa43f56c23aa48b19ee7acec0f27213ec
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SHA256
d7269fff7321b7254a2a6ce7e6fb9b8347d73cb78597d73412b8d21344832e81
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SHA512
2ebeb53cf5229077d96b8bb2f93e7694baaa420d3c719c7156d9d28b1bf1f168da9bd2b095f3d0569dea2eef1a171609f538bfa95d02f0f596c6c3c429ef7f6e
Malware Config
Extracted
C:\Users\Admin\AppData\Local\8506BBE7FF\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/1604-62-0x0000000000400000-0x00000000004C6000-memory.dmp family_masslogger behavioral1/memory/1604-63-0x0000000000400000-0x00000000004C6000-memory.dmp family_masslogger behavioral1/memory/1604-64-0x0000000000400000-0x00000000004C6000-memory.dmp family_masslogger behavioral1/memory/1604-65-0x00000000004C005E-mapping.dmp family_masslogger behavioral1/memory/1604-67-0x0000000000400000-0x00000000004C6000-memory.dmp family_masslogger behavioral1/memory/1604-69-0x0000000000400000-0x00000000004C6000-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:
Purchase Order.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation Purchase Order.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:
Purchase Order.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook Purchase Order.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook Purchase Order.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:
Purchase Order.exedescription pid process target process PID 1240 set thread context of 1604 1240 Purchase Order.exe Purchase Order.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 1 IoCs
Processes:
Purchase Order.exepid process 1604 Purchase Order.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Purchase Order.exedescription pid process Token: SeDebugPrivilege 1604 Purchase Order.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
Purchase Order.exedescription pid process target process PID 1240 wrote to memory of 1376 1240 Purchase Order.exe schtasks.exe PID 1240 wrote to memory of 1376 1240 Purchase Order.exe schtasks.exe PID 1240 wrote to memory of 1376 1240 Purchase Order.exe schtasks.exe PID 1240 wrote to memory of 1376 1240 Purchase Order.exe schtasks.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe PID 1240 wrote to memory of 1604 1240 Purchase Order.exe Purchase Order.exe -
outlook_office_path 1 IoCs
Processes:
Purchase Order.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe -
outlook_win_path 1 IoCs
Processes:
Purchase Order.exedescription ioc process Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1240 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fRHcKmAof" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3A63.tmp"2⤵
- Creates scheduled task(s)
PID:1376 -
C:\Users\Admin\AppData\Local\Temp\Purchase Order.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:1604
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5174a6e7c45770e4e020e01b34147ce0a
SHA193df9d70655e715b7d497075d6bee44d7b5cb153
SHA256198d53a1a99ddf097cb967ef139fe2efbd88255ef3b6d36a372e130a3124d9a4
SHA512a3c84bf8da7e8547bc85b7efc46a9654a82f7196690d0a56675689fe22da20b66a86f44a61242dc0ab54e6d07de20ac64cf091bb85b335bb1253c1603af89e7a