Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
23-01-2025 15:01
Behavioral task
behavioral1
Sample
acrobroker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
acrobroker.exe
Resource
win10v2004-20241007-en
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
Malware Config
Signatures
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Detect Neshta payload 3 IoCs
resource yara_rule behavioral1/files/0x0001000000010314-10.dat family_neshta behavioral1/memory/3020-83-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral1/memory/3020-85-0x0000000000400000-0x000000000041B000-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 2764 acrobroker.exe -
Loads dropped DLL 2 IoCs
pid Process 3020 acrobroker.exe 3020 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~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE acrobroker.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.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\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~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\Google\Update\1336~1.151\GOOGLE~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE acrobroker.exe File opened for modification C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\misc.exe acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~4\ImagingDevices.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE acrobroker.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmpshare.exe acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~1\wabmig.exe acrobroker.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmprph.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.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\WI54FB~1\wmpconfig.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~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\Office14\PPTICO.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\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~1\wab.exe acrobroker.exe File opened for modification C:\PROGRA~2\WINDOW~1\WinMail.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~2\Adobe\READER~1.0\Reader\Eula.exe acrobroker.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe acrobroker.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE acrobroker.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE acrobroker.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\BCSSync.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 1 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 -
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 4 IoCs
description pid Process procid_target PID 3020 wrote to memory of 2764 3020 acrobroker.exe 30 PID 3020 wrote to memory of 2764 3020 acrobroker.exe 30 PID 3020 wrote to memory of 2764 3020 acrobroker.exe 30 PID 3020 wrote to memory of 2764 3020 acrobroker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\acrobroker.exe"C:\Users\Admin\AppData\Local\Temp\acrobroker.exe"1⤵
- Loads dropped DLL
- 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:3020 -
C:\Users\Admin\AppData\Local\Temp\3582-490\acrobroker.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\acrobroker.exe"2⤵
- Executes dropped EXE
PID:2764
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
547KB
MD5cf6c595d3e5e9667667af096762fd9c4
SHA19bb44da8d7f6457099cb56e4f7d1026963dce7ce
SHA256593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d
SHA512ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80
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Filesize
260KB
MD5c093db94882bae3a1914355074243a0a
SHA13e64fab3fc4a1e758bfc6b29ffb027fc773c70d4
SHA256800f69c886281cc62fbc7cd1f2355525399334a05c912a659d80a19e66c9c364
SHA5127e972902669bca4afe9c4a2f391abd2ae1ce57db5c1dd3272676f3bc6db4641f9c078684668ce3e8b18b72673f1e904e5816dad743986625762f8830c2157379
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Filesize
252KB
MD59e2b9928c89a9d0da1d3e8f4bd96afa7
SHA1ec66cda99f44b62470c6930e5afda061579cde35
SHA2568899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043
SHA5122ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156