Analysis
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max time kernel
90s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 13:49
Static task
static1
Behavioral task
behavioral1
Sample
83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe
Resource
win10v2004-20221111-en
General
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Target
83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe
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Size
966KB
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MD5
f894cd4217838c01eb188e0e6c02a162
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SHA1
05ff59b6ff17fdd1d8ce9c1e14346dc93a382ee1
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SHA256
83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d
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SHA512
da93bed4ab8cc145e4c60c69b2fc148b2dde9a221791874ff0afbcd7518cbabca90f6f0fc0df134e52f395ca3f9d12e5348f51c6f259db6ce6a1150eed48bba9
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SSDEEP
24576:j7CIrr0eIp7RYDT18UJaerBvhcPILrrq2tkyzMhGGk:3CWIp7RYCxe1vKPg5kycv
Malware Config
Signatures
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NirSoft MailPassView 5 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/1516-97-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1516-98-0x0000000000411654-mapping.dmp MailPassView behavioral1/memory/1516-101-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1516-102-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1516-103-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
Nirsoft 9 IoCs
Processes:
resource yara_rule behavioral1/memory/1636-83-0x000000000040E758-mapping.dmp Nirsoft behavioral1/memory/1636-82-0x0000000000400000-0x0000000000418000-memory.dmp Nirsoft behavioral1/memory/1636-86-0x0000000000400000-0x0000000000418000-memory.dmp Nirsoft behavioral1/memory/1636-87-0x0000000000400000-0x0000000000418000-memory.dmp Nirsoft behavioral1/memory/1516-97-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1516-98-0x0000000000411654-mapping.dmp Nirsoft behavioral1/memory/1516-101-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1516-102-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1516-103-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft -
Executes dropped EXE 1 IoCs
Processes:
tmp.exepid process 592 tmp.exe -
Drops startup file 2 IoCs
Processes:
cmd.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp.exe cmd.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp.exe cmd.exe -
Loads dropped DLL 3 IoCs
Processes:
83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exedw20.exepid process 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe 1460 dw20.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 web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
reg.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\Example = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Antivirus.exe" reg.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 6 bot.whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
Processes:
tmp.exedescription pid process target process PID 592 set thread context of 1636 592 tmp.exe vbc.exe PID 592 set thread context of 1516 592 tmp.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exepid process 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
tmp.exepid process 592 tmp.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exetmp.exedescription pid process Token: SeDebugPrivilege 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe Token: SeDebugPrivilege 592 tmp.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
tmp.exepid process 592 tmp.exe 592 tmp.exe -
Suspicious use of WriteProcessMemory 44 IoCs
Processes:
83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exetmp.execmd.exedescription pid process target process PID 1408 wrote to memory of 592 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe tmp.exe PID 1408 wrote to memory of 592 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe tmp.exe PID 1408 wrote to memory of 592 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe tmp.exe PID 1408 wrote to memory of 592 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe tmp.exe PID 1408 wrote to memory of 1648 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe PID 1408 wrote to memory of 1648 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe PID 1408 wrote to memory of 1648 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe PID 1408 wrote to memory of 1648 1408 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe 83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe PID 592 wrote to memory of 1720 592 tmp.exe cmd.exe PID 592 wrote to memory of 1720 592 tmp.exe cmd.exe PID 592 wrote to memory of 1720 592 tmp.exe cmd.exe PID 592 wrote to memory of 1720 592 tmp.exe cmd.exe PID 592 wrote to memory of 900 592 tmp.exe cmd.exe PID 592 wrote to memory of 900 592 tmp.exe cmd.exe PID 592 wrote to memory of 900 592 tmp.exe cmd.exe PID 592 wrote to memory of 900 592 tmp.exe cmd.exe PID 900 wrote to memory of 664 900 cmd.exe reg.exe PID 900 wrote to memory of 664 900 cmd.exe reg.exe PID 900 wrote to memory of 664 900 cmd.exe reg.exe PID 900 wrote to memory of 664 900 cmd.exe reg.exe PID 592 wrote to memory of 1460 592 tmp.exe dw20.exe PID 592 wrote to memory of 1460 592 tmp.exe dw20.exe PID 592 wrote to memory of 1460 592 tmp.exe dw20.exe PID 592 wrote to memory of 1460 592 tmp.exe dw20.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1636 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe PID 592 wrote to memory of 1516 592 tmp.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe"C:\Users\Admin\AppData\Local\Temp\83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe"1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1408 -
C:\Users\Admin\AppData\Roaming\tmp.exe"C:\Users\Admin\AppData\Roaming\tmp.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:592 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c copy /z "C:\Users\Admin\AppData\Roaming\tmp.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tmp.exe"3⤵
- Drops startup file
PID:1720 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Example" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Antivirus.exe3⤵
- Suspicious use of WriteProcessMemory
PID:900 -
C:\Windows\SysWOW64\reg.exereg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Example" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Antivirus.exe4⤵
- Adds Run key to start application
PID:664 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exedw20.exe -x -s 16923⤵
- Loads dropped DLL
PID:1460 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logff.txt3⤵PID:1636
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logmail.txt3⤵
- Accesses Microsoft Outlook accounts
PID:1516 -
C:\Users\Admin\AppData\Local\Temp\83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exeC:\Users\Admin\AppData\Local\Temp\83b2ee96940a6d6fc8f1ee0064cafd17abb9db05e89e1cdb4e207ca2987c2f1d.exe2⤵PID:1648
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
444KB
MD5c12a419d275e047fbf4e022099d19c70
SHA176d1105ddc3898c11f662f3ec32108532a4d3741
SHA2566aa841156ff4c12da3ace285ac4ceb388cebe54a9332803e521519e448c18180
SHA51210fffafcd1a004a8650c0362469a52a24191372aafa64e696f44923c7d9f156197970917926b343d90fedb15b56838d840482d7ae5d9942768efcd0315568b9d
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Filesize
444KB
MD5c12a419d275e047fbf4e022099d19c70
SHA176d1105ddc3898c11f662f3ec32108532a4d3741
SHA2566aa841156ff4c12da3ace285ac4ceb388cebe54a9332803e521519e448c18180
SHA51210fffafcd1a004a8650c0362469a52a24191372aafa64e696f44923c7d9f156197970917926b343d90fedb15b56838d840482d7ae5d9942768efcd0315568b9d
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Filesize
444KB
MD5c12a419d275e047fbf4e022099d19c70
SHA176d1105ddc3898c11f662f3ec32108532a4d3741
SHA2566aa841156ff4c12da3ace285ac4ceb388cebe54a9332803e521519e448c18180
SHA51210fffafcd1a004a8650c0362469a52a24191372aafa64e696f44923c7d9f156197970917926b343d90fedb15b56838d840482d7ae5d9942768efcd0315568b9d
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Filesize
444KB
MD5c12a419d275e047fbf4e022099d19c70
SHA176d1105ddc3898c11f662f3ec32108532a4d3741
SHA2566aa841156ff4c12da3ace285ac4ceb388cebe54a9332803e521519e448c18180
SHA51210fffafcd1a004a8650c0362469a52a24191372aafa64e696f44923c7d9f156197970917926b343d90fedb15b56838d840482d7ae5d9942768efcd0315568b9d
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Filesize
444KB
MD5c12a419d275e047fbf4e022099d19c70
SHA176d1105ddc3898c11f662f3ec32108532a4d3741
SHA2566aa841156ff4c12da3ace285ac4ceb388cebe54a9332803e521519e448c18180
SHA51210fffafcd1a004a8650c0362469a52a24191372aafa64e696f44923c7d9f156197970917926b343d90fedb15b56838d840482d7ae5d9942768efcd0315568b9d