Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
02-04-2024 13:54
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.exe
Resource
win7-20240221-en
General
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Target
Invoice.exe
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Size
5.8MB
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MD5
e0ad1b070ad9c0430f491d07c2708484
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SHA1
f36de48706a23f38d7b3fa070d8948dbc9ac3491
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SHA256
647816ec76f04594da29576e94eb3febd405dd027379bc558b20babe65b11712
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SHA512
d7bea99b6595f75c0a448d93f8a1394d93a23d88933d3d26ba4c141faa69f9d87a18cf0535cb9e0e3016ad9067ade5320fc0171e7bbe84a42989bfd2f6c25ef9
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SSDEEP
98304:AuBV+GvjiaLzY5lk+Ar+fbleEfho0b6s0LSvIragO0fMvU/5Lf62LDY:AbGvPE5Ca183
Malware Config
Signatures
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NirSoft MailPassView 5 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/4872-7-0x0000000000DB0000-0x0000000000E38000-memory.dmp MailPassView behavioral2/memory/2588-34-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2588-36-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2588-38-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2588-40-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/4872-7-0x0000000000DB0000-0x0000000000E38000-memory.dmp WebBrowserPassView behavioral2/memory/648-42-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/648-44-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/648-46-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/648-53-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 9 IoCs
Processes:
resource yara_rule behavioral2/memory/4872-7-0x0000000000DB0000-0x0000000000E38000-memory.dmp Nirsoft behavioral2/memory/2588-34-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2588-36-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2588-38-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2588-40-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/648-42-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/648-44-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/648-46-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/648-53-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Invoice.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation Invoice.exe -
Executes dropped EXE 5 IoCs
Processes:
svchost.exesvchost.exesvchost.exesvchost.exesvchost.exepid process 3016 svchost.exe 908 svchost.exe 3224 svchost.exe 684 svchost.exe 2584 svchost.exe -
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-1-5-21-3045580317-3728985860-206385570-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 43 whatismyipaddress.com 45 whatismyipaddress.com -
Suspicious use of SetThreadContext 5 IoCs
Processes:
Invoice.exeInvoice.exesvchost.exesvchost.exedescription pid process target process PID 2292 set thread context of 4872 2292 Invoice.exe Invoice.exe PID 4872 set thread context of 2588 4872 Invoice.exe vbc.exe PID 4872 set thread context of 648 4872 Invoice.exe vbc.exe PID 3016 set thread context of 908 3016 svchost.exe svchost.exe PID 3224 set thread context of 684 3224 svchost.exe svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 3628 schtasks.exe 3208 schtasks.exe 4796 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
vbc.exeInvoice.exepid process 648 vbc.exe 648 vbc.exe 4872 Invoice.exe -
Suspicious behavior: SetClipboardViewer 2 IoCs
Processes:
svchost.exesvchost.exepid process 908 svchost.exe 684 svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Invoice.exedescription pid process Token: SeDebugPrivilege 4872 Invoice.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Invoice.exepid process 4872 Invoice.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
Invoice.execmd.exeInvoice.exesvchost.execmd.exesvchost.exedescription pid process target process PID 2292 wrote to memory of 4872 2292 Invoice.exe Invoice.exe PID 2292 wrote to memory of 4872 2292 Invoice.exe Invoice.exe PID 2292 wrote to memory of 4872 2292 Invoice.exe Invoice.exe PID 2292 wrote to memory of 4872 2292 Invoice.exe Invoice.exe PID 2292 wrote to memory of 4872 2292 Invoice.exe Invoice.exe PID 2292 wrote to memory of 4872 2292 Invoice.exe Invoice.exe PID 2292 wrote to memory of 4872 2292 Invoice.exe Invoice.exe PID 2292 wrote to memory of 4872 2292 Invoice.exe Invoice.exe PID 2292 wrote to memory of 3016 2292 Invoice.exe svchost.exe PID 2292 wrote to memory of 3016 2292 Invoice.exe svchost.exe PID 2292 wrote to memory of 3016 2292 Invoice.exe svchost.exe PID 2292 wrote to memory of 3236 2292 Invoice.exe cmd.exe PID 2292 wrote to memory of 3236 2292 Invoice.exe cmd.exe PID 2292 wrote to memory of 3236 2292 Invoice.exe cmd.exe PID 2292 wrote to memory of 1108 2292 Invoice.exe cmd.exe PID 2292 wrote to memory of 1108 2292 Invoice.exe cmd.exe PID 2292 wrote to memory of 1108 2292 Invoice.exe cmd.exe PID 1108 wrote to memory of 3628 1108 cmd.exe schtasks.exe PID 1108 wrote to memory of 3628 1108 cmd.exe schtasks.exe PID 1108 wrote to memory of 3628 1108 cmd.exe schtasks.exe PID 2292 wrote to memory of 2800 2292 Invoice.exe cmd.exe PID 2292 wrote to memory of 2800 2292 Invoice.exe cmd.exe PID 2292 wrote to memory of 2800 2292 Invoice.exe cmd.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 2588 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 4872 wrote to memory of 648 4872 Invoice.exe vbc.exe PID 3016 wrote to memory of 908 3016 svchost.exe svchost.exe PID 3016 wrote to memory of 908 3016 svchost.exe svchost.exe PID 3016 wrote to memory of 908 3016 svchost.exe svchost.exe PID 3016 wrote to memory of 908 3016 svchost.exe svchost.exe PID 3016 wrote to memory of 908 3016 svchost.exe svchost.exe PID 3016 wrote to memory of 908 3016 svchost.exe svchost.exe PID 3016 wrote to memory of 908 3016 svchost.exe svchost.exe PID 3016 wrote to memory of 908 3016 svchost.exe svchost.exe PID 3016 wrote to memory of 1088 3016 svchost.exe cmd.exe PID 3016 wrote to memory of 1088 3016 svchost.exe cmd.exe PID 3016 wrote to memory of 1088 3016 svchost.exe cmd.exe PID 3016 wrote to memory of 1504 3016 svchost.exe cmd.exe PID 3016 wrote to memory of 1504 3016 svchost.exe cmd.exe PID 3016 wrote to memory of 1504 3016 svchost.exe cmd.exe PID 1504 wrote to memory of 3208 1504 cmd.exe schtasks.exe PID 1504 wrote to memory of 3208 1504 cmd.exe schtasks.exe PID 1504 wrote to memory of 3208 1504 cmd.exe schtasks.exe PID 3016 wrote to memory of 3248 3016 svchost.exe cmd.exe PID 3016 wrote to memory of 3248 3016 svchost.exe cmd.exe PID 3016 wrote to memory of 3248 3016 svchost.exe cmd.exe PID 3224 wrote to memory of 684 3224 svchost.exe svchost.exe PID 3224 wrote to memory of 684 3224 svchost.exe svchost.exe PID 3224 wrote to memory of 684 3224 svchost.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2292 -
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4872 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
- Accesses Microsoft Outlook accounts
PID:2588
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:648
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C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3016 -
C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: SetClipboardViewer
PID:908
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\svchost"3⤵PID:1088
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f3⤵
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f4⤵
- Creates scheduled task(s)
PID:3208
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"3⤵PID:3248
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\svchost"2⤵PID:3236
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f3⤵
- Creates scheduled task(s)
PID:3628
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\Invoice.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"2⤵PID:2800
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C:\Users\Admin\AppData\Roaming\svchost\svchost.exeC:\Users\Admin\AppData\Roaming\svchost\svchost.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3224 -
C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: SetClipboardViewer
PID:684
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\svchost"2⤵PID:3300
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f2⤵PID:3592
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f3⤵
- Creates scheduled task(s)
PID:4796
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"2⤵PID:4860
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C:\Users\Admin\AppData\Roaming\svchost\svchost.exeC:\Users\Admin\AppData\Roaming\svchost\svchost.exe1⤵
- Executes dropped EXE
PID:2584
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
520B
MD503febbff58da1d3318c31657d89c8542
SHA1c9e017bd9d0a4fe533795b227c855935d86c2092
SHA2565164770a37b199a79ccd23b399bb3309228973d9f74c589bc2623dc613b37ac4
SHA5123750c372bbca1892e9c1b34681d592c693e725a8b149c3d6938079cd467628cec42c4293b0d886b57a786abf45f5e7229247b3445001774e3e793ff5a3accfa3
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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Filesize
3.0MB
MD5646f6ea76cd0f29d4c2d6b0c8935e39e
SHA159962777a41b8ca3dfd0c40147e013a3a6d9bda4
SHA2560f71486baf108292e78215a8ca9643408664ecf173a6d556185c784297fc2ac5
SHA512480044c8f611ead3ba8351f4e580fe191f3b7a8dfa2ab513a3caf6a3927d9997d9a3c77ae2e26c7ffa26d1569d8d2ecec235deca23b389b491237a1cca5d9442
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Filesize
3.0MB
MD5d18c60c6d816560667d9206afb22eb6a
SHA18c8514e95d26a9d88de2f0d4185df5c738041adc
SHA2562fccc23de86feb99f99c2add3ef7eb73f5c238da2ed7a18ae084e8cc026c853b
SHA512c2894ae06bbfce9ec9ac045a4a48811a9196abdf36a8c2eb3657eccfe29a6d36cf7735095cd5cc4c4619832c50821b82abd91a51008cb6ed7ba3b9a110641a3b