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Analysis
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max time kernel
31s -
max time network
113s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
08/02/2023, 18:30
Static task
static1
Behavioral task
behavioral1
Sample
Profoma Invoice.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Profoma Invoice.exe
Resource
win10v2004-20221111-en
General
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Target
Profoma Invoice.exe
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Size
301KB
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MD5
07a7565fcf8ba9b08b5e83e94489e4b1
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SHA1
8cee31beae3baabf4c1e71a114a3b2623c798ca8
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SHA256
7b5951f5bf8b74c9e9f377c59ad305a671735c9f7c6cf9f3def654c5989619ec
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SHA512
3f2e0a04c995d7e0a209fda8ce908b83415244259195ee7fde2acdce9c8a7cb37509503a61e2f46cc6c40db44144b79461960dc670c9d60b474e63f00eea3e9b
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SSDEEP
6144:4e9Z6dubKLoGWi3xCeLy4Im5Q1FoFVjOMix6S2:f6dubKLoxeGnRklhTS
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.wspcranes.com - Port:
995 - Username:
[email protected] - Password:
Wel@1come - Email To:
[email protected]
https://api.telegram.org/bot6192832133:AAF7C5Hu2cAny_oozlOAGw_7DWfvYVumEbE/sendMessage?chat_id=2021395706
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 6 IoCs
resource yara_rule behavioral1/memory/432-68-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/432-67-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/432-65-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/432-69-0x0000000000420BDE-mapping.dmp family_snakekeylogger behavioral1/memory/432-72-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/432-74-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Disables Task Manager via registry modification
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Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pdf.exe Powershell.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pdf.exe Powershell.exe -
Executes dropped EXE 1 IoCs
pid Process 432 Profoma Invoice.exe -
Loads dropped DLL 2 IoCs
pid Process 1588 Profoma Invoice.exe 1588 Profoma Invoice.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Profoma Invoice.exe Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Profoma Invoice.exe Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Profoma Invoice.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 3 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1588 set thread context of 432 1588 Profoma Invoice.exe 31 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 616 Powershell.exe 432 Profoma Invoice.exe 432 Profoma Invoice.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 616 Powershell.exe Token: SeDebugPrivilege 432 Profoma Invoice.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1588 wrote to memory of 616 1588 Profoma Invoice.exe 28 PID 1588 wrote to memory of 616 1588 Profoma Invoice.exe 28 PID 1588 wrote to memory of 616 1588 Profoma Invoice.exe 28 PID 1588 wrote to memory of 616 1588 Profoma Invoice.exe 28 PID 1588 wrote to memory of 852 1588 Profoma Invoice.exe 30 PID 1588 wrote to memory of 852 1588 Profoma Invoice.exe 30 PID 1588 wrote to memory of 852 1588 Profoma Invoice.exe 30 PID 1588 wrote to memory of 852 1588 Profoma Invoice.exe 30 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 PID 1588 wrote to memory of 432 1588 Profoma Invoice.exe 31 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Profoma Invoice.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Profoma Invoice.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1588 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\pdf.exe'2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:616
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C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe"2⤵PID:852
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C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Profoma Invoice.exe"2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:432
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
301KB
MD507a7565fcf8ba9b08b5e83e94489e4b1
SHA18cee31beae3baabf4c1e71a114a3b2623c798ca8
SHA2567b5951f5bf8b74c9e9f377c59ad305a671735c9f7c6cf9f3def654c5989619ec
SHA5123f2e0a04c995d7e0a209fda8ce908b83415244259195ee7fde2acdce9c8a7cb37509503a61e2f46cc6c40db44144b79461960dc670c9d60b474e63f00eea3e9b
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Filesize
301KB
MD507a7565fcf8ba9b08b5e83e94489e4b1
SHA18cee31beae3baabf4c1e71a114a3b2623c798ca8
SHA2567b5951f5bf8b74c9e9f377c59ad305a671735c9f7c6cf9f3def654c5989619ec
SHA5123f2e0a04c995d7e0a209fda8ce908b83415244259195ee7fde2acdce9c8a7cb37509503a61e2f46cc6c40db44144b79461960dc670c9d60b474e63f00eea3e9b
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Filesize
301KB
MD507a7565fcf8ba9b08b5e83e94489e4b1
SHA18cee31beae3baabf4c1e71a114a3b2623c798ca8
SHA2567b5951f5bf8b74c9e9f377c59ad305a671735c9f7c6cf9f3def654c5989619ec
SHA5123f2e0a04c995d7e0a209fda8ce908b83415244259195ee7fde2acdce9c8a7cb37509503a61e2f46cc6c40db44144b79461960dc670c9d60b474e63f00eea3e9b