Analysis
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max time kernel
21s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
23-01-2025 14:51
Behavioral task
behavioral1
Sample
acrobroker.exe
Resource
win11-20241007-en
windows11-21h2-x64
12 signatures
150 seconds
General
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Target
acrobroker.exe
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Size
301KB
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MD5
8e689215b7800fc566c1843d5231641f
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SHA1
0484e4fc2085bd1e4a04eca4880ffb3f17800b92
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SHA256
6fe40e509f4e44963392c301a081300db4c7915e3d5746643c0541dc76bccc27
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SHA512
748d0efb079f23e98b5b88125de0eaec2554630a231b25ad4a19abfcd70f26055481a59b2feb586a471e8b44c1b97b1ccb0ad1bdbd668979fb5b04997067e1d6
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SSDEEP
6144:k9dyr8oe0K+rMQAt63mby+LCtmVxYNG/uMrqrX+pb:oy34gWd+QYNK7qrX+Z
Score
10/10
Malware Config
Signatures
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Detect Neshta payload 4 IoCs
resource yara_rule behavioral1/files/0x000700000002782a-15.dat family_neshta behavioral1/memory/460-117-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral1/memory/460-118-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral1/memory/460-120-0x0000000000400000-0x000000000041B000-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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Neshta family
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Executes dropped EXE 1 IoCs
pid Process 468 acrobroker.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" acrobroker.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaw.exe acrobroker.exe File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmlaunch.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\cookie_exporter.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\pwahelper.exe acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~2\wabmig.exe acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{D87AE~1\WINDOW~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\msedge_pwa_launcher.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\msedge.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateCore.exe acrobroker.exe File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe acrobroker.exe File opened for modification C:\PROGRA~2\WI8A19~1\ImagingDevices.exe acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{63880~1\WINDOW~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\java.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\msedge.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeComRegisterShellARM64.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateComRegisterShell64.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateOnDemand.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateSetup.exe acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\BHO\ie_to_edge_stub.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\elevation_service.exe acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\INTERN~1\ExtExport.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\Installer\setup.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\notification_helper.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\pwahelper.exe acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmpconfig.exe acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~3.EXE acrobroker.exe File opened for modification C:\PROGRA~2\INTERN~1\ielowutil.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\msedgewebview2.exe acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~4\setup_wm.exe acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF5AF~1\WINDOW~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE acrobroker.exe File opened for modification C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\msedge_proxy.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateBroker.exe acrobroker.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE acrobroker.exe File opened for modification C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmpshare.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~4.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOBD5D~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\identity_helper.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe acrobroker.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\svchost.com acrobroker.exe -
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 2 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 acrobroker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language acrobroker.exe -
Modifies registry class 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" acrobroker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 460 wrote to memory of 468 460 acrobroker.exe 77 PID 460 wrote to memory of 468 460 acrobroker.exe 77 PID 460 wrote to memory of 468 460 acrobroker.exe 77
Processes
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C:\Users\Admin\AppData\Local\Temp\acrobroker.exe"C:\Users\Admin\AppData\Local\Temp\acrobroker.exe"1⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:460 -
C:\Users\Admin\AppData\Local\Temp\3582-490\acrobroker.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\acrobroker.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:468
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
86KB
MD53b73078a714bf61d1c19ebc3afc0e454
SHA19abeabd74613a2f533e2244c9ee6f967188e4e7e
SHA256ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29
SHA51275959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4
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Filesize
260KB
MD5c093db94882bae3a1914355074243a0a
SHA13e64fab3fc4a1e758bfc6b29ffb027fc773c70d4
SHA256800f69c886281cc62fbc7cd1f2355525399334a05c912a659d80a19e66c9c364
SHA5127e972902669bca4afe9c4a2f391abd2ae1ce57db5c1dd3272676f3bc6db4641f9c078684668ce3e8b18b72673f1e904e5816dad743986625762f8830c2157379