Analysis
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max time kernel
162s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
04-03-2023 20:56
Behavioral task
behavioral1
Sample
a55abea61f25414c01c29d001935c33d.exe
Resource
win7-20230220-en
General
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Target
a55abea61f25414c01c29d001935c33d.exe
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Size
1.5MB
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MD5
a55abea61f25414c01c29d001935c33d
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SHA1
89dfb5a898440ac55e40d73ee1b60a9c5aaa4700
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SHA256
fb014da9ca6b3a47dc1b6a41baa61a9625e78c19d608eefdb495cc0fa9653295
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SHA512
5c449a3d024bffea9f5881e4add826b1e8d92023b3ce473c17484a5a7292c4542e9133d0be06aff60f8717a7d120b568ec04a1c2ef671df2819853097bc3749b
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SSDEEP
24576:udRKZCy2BrhCeU2i2cJijFbCBTPmiY05tJMSQp5ysA7Yg1nLkznHv/A0jT1v9:uXDFBU2iIBb0xY/6sUYYCHnAm
Malware Config
Extracted
bitrat
1.38
185.81.157.28:2030
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communication_password
81dc9bdb52d04dc20036dbd8313ed055
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tor_process
tor
Signatures
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Detect Neshta payload 8 IoCs
Processes:
resource yara_rule C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe family_neshta behavioral2/memory/4120-221-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/4120-223-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/4120-225-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/4120-227-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/4120-229-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/4120-231-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/4120-234-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta -
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
a55abea61f25414c01c29d001935c33d.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation a55abea61f25414c01c29d001935c33d.exe -
Executes dropped EXE 1 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exepid process 2044 a55abea61f25414c01c29d001935c33d.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" a55abea61f25414c01c29d001935c33d.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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Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\3582-490\a55abea61f25414c01c29d001935c33d.exe upx C:\Users\Admin\AppData\Local\Temp\3582-490\a55abea61f25414c01c29d001935c33d.exe upx C:\Users\Admin\AppData\Local\Temp\3582-490\a55abea61f25414c01c29d001935c33d.exe upx behavioral2/memory/2044-143-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-222-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-224-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-226-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-228-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-230-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-232-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-235-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-236-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-237-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-238-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-239-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-240-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-241-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/2044-242-0x0000000000400000-0x00000000007E4000-memory.dmp upx -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exepid process 2044 a55abea61f25414c01c29d001935c33d.exe 2044 a55abea61f25414c01c29d001935c33d.exe 2044 a55abea61f25414c01c29d001935c33d.exe 2044 a55abea61f25414c01c29d001935c33d.exe 2044 a55abea61f25414c01c29d001935c33d.exe -
Drops file in Program Files directory 64 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exedescription ioc process File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MID1AD~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmlaunch.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\WI8A19~1\ImagingDevices.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~2.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmprph.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\WINDOW~4\setup_wm.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MI9C33~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmpshare.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~4.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MIA062~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13173~1.45\MICROS~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\INTERN~1\ExtExport.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\WINDOW~2\wab.exe a55abea61f25414c01c29d001935c33d.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE a55abea61f25414c01c29d001935c33d.exe -
Drops file in Windows directory 1 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exedescription ioc process File opened for modification C:\Windows\svchost.com a55abea61f25414c01c29d001935c33d.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" a55abea61f25414c01c29d001935c33d.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exedescription pid process Token: SeShutdownPrivilege 2044 a55abea61f25414c01c29d001935c33d.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exepid process 2044 a55abea61f25414c01c29d001935c33d.exe 2044 a55abea61f25414c01c29d001935c33d.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
a55abea61f25414c01c29d001935c33d.exedescription pid process target process PID 4120 wrote to memory of 2044 4120 a55abea61f25414c01c29d001935c33d.exe a55abea61f25414c01c29d001935c33d.exe PID 4120 wrote to memory of 2044 4120 a55abea61f25414c01c29d001935c33d.exe a55abea61f25414c01c29d001935c33d.exe PID 4120 wrote to memory of 2044 4120 a55abea61f25414c01c29d001935c33d.exe a55abea61f25414c01c29d001935c33d.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a55abea61f25414c01c29d001935c33d.exe"C:\Users\Admin\AppData\Local\Temp\a55abea61f25414c01c29d001935c33d.exe"1⤵
- Checks computer location settings
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4120 -
C:\Users\Admin\AppData\Local\Temp\3582-490\a55abea61f25414c01c29d001935c33d.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\a55abea61f25414c01c29d001935c33d.exe"2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2044
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.4MB
MD58ffc3bdf4a1903d9e28b99d1643fc9c7
SHA1919ba8594db0ae245a8abd80f9f3698826fc6fe5
SHA2568268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6
SHA5120b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427
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Filesize
1.4MB
MD52486590c02e70fdd7a1cca91a9522332
SHA19fb0e6fca3e32ff4d0418ca72bdb050234d70e79
SHA25617a6826086b723ce35bbbd6095a9bc7243149e431e6f2d51cc444a4368b7ccda
SHA51282edf41e78f6dfacf9bb7da12163c2b6fae4e8dce2d8a6d5166d09fe0632a37517766eda76b581f3cef382acfe9eac9e550bc339083e2c0af51c810fca0d5b60
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Filesize
1.4MB
MD52486590c02e70fdd7a1cca91a9522332
SHA19fb0e6fca3e32ff4d0418ca72bdb050234d70e79
SHA25617a6826086b723ce35bbbd6095a9bc7243149e431e6f2d51cc444a4368b7ccda
SHA51282edf41e78f6dfacf9bb7da12163c2b6fae4e8dce2d8a6d5166d09fe0632a37517766eda76b581f3cef382acfe9eac9e550bc339083e2c0af51c810fca0d5b60
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Filesize
1.4MB
MD52486590c02e70fdd7a1cca91a9522332
SHA19fb0e6fca3e32ff4d0418ca72bdb050234d70e79
SHA25617a6826086b723ce35bbbd6095a9bc7243149e431e6f2d51cc444a4368b7ccda
SHA51282edf41e78f6dfacf9bb7da12163c2b6fae4e8dce2d8a6d5166d09fe0632a37517766eda76b581f3cef382acfe9eac9e550bc339083e2c0af51c810fca0d5b60