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Analysis
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max time kernel
127s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
13/09/2024, 16:49
Static task
static1
Behavioral task
behavioral1
Sample
quotation.pdf.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
quotation.pdf.exe
Resource
win10v2004-20240802-en
General
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Target
quotation.pdf.exe
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Size
584KB
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MD5
cae995edd90312264f9faa534874894f
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SHA1
2a71f016765dc5fa825ca1f437e1df02c32611a0
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SHA256
5226c6707f7f1430f49c6c7cd637375b00004be37d815d82804257a8ca563841
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SHA512
6bd8c914fbdc8b04bdf12a8a60eb61324e4e06dfdd7525d29418c861247dda366e367992afd4d285a15b8ca71df5d28ddc1056cb91df3d9d1461c888bce8d594
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SSDEEP
12288:HrLfSC/W39Rfyyii2nYUNm8AEr8aNZibViwt5XHF:LLbcyyii2nYUm8AErTsiw5V
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6086388911:AAGHpITQe4oLJhzRR86O2JB3Tmd1xG2gIqM/sendMessage?chat_id=1932526247
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/916-44-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 1984 powershell.exe 4132 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation quotation.pdf.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.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.
flow ioc 16 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4488 set thread context of 916 4488 quotation.pdf.exe 99 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language quotation.pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1552 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4132 powershell.exe 1984 powershell.exe 916 RegSvcs.exe 4132 powershell.exe 1984 powershell.exe 916 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4132 powershell.exe Token: SeDebugPrivilege 1984 powershell.exe Token: SeDebugPrivilege 916 RegSvcs.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 4488 wrote to memory of 1984 4488 quotation.pdf.exe 93 PID 4488 wrote to memory of 1984 4488 quotation.pdf.exe 93 PID 4488 wrote to memory of 1984 4488 quotation.pdf.exe 93 PID 4488 wrote to memory of 4132 4488 quotation.pdf.exe 95 PID 4488 wrote to memory of 4132 4488 quotation.pdf.exe 95 PID 4488 wrote to memory of 4132 4488 quotation.pdf.exe 95 PID 4488 wrote to memory of 1552 4488 quotation.pdf.exe 97 PID 4488 wrote to memory of 1552 4488 quotation.pdf.exe 97 PID 4488 wrote to memory of 1552 4488 quotation.pdf.exe 97 PID 4488 wrote to memory of 916 4488 quotation.pdf.exe 99 PID 4488 wrote to memory of 916 4488 quotation.pdf.exe 99 PID 4488 wrote to memory of 916 4488 quotation.pdf.exe 99 PID 4488 wrote to memory of 916 4488 quotation.pdf.exe 99 PID 4488 wrote to memory of 916 4488 quotation.pdf.exe 99 PID 4488 wrote to memory of 916 4488 quotation.pdf.exe 99 PID 4488 wrote to memory of 916 4488 quotation.pdf.exe 99 PID 4488 wrote to memory of 916 4488 quotation.pdf.exe 99 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe"C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4488 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1984
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VBwlAonrdTz.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4132
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VBwlAonrdTz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC709.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1552
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:916
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5845f769e4fca73d46df0122c36f2f910
SHA1887705f4db06b437e8825e376a97135f85f6ff20
SHA256b812ef48ff46fa88a4e1fbd924ae42a67d500a282cd42471a6ad2c947d86903a
SHA5125ab1a3de9af922d3e6a8763ee26bea676015a10a2edd91036f3b01dd415cb3e065e9cc079ac605d25c85637c47f9e65d177529f3a9fb313d00dfd39e1c525149