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Analysis
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max time kernel
94s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2024, 20:27
Behavioral task
behavioral1
Sample
Utilman.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
Utilman.exe
Resource
win10v2004-20241007-en
General
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Target
Utilman.exe
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Size
709KB
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MD5
83aba31021b2d4613af088f11f784301
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SHA1
906a0876fc94ad2e4ea10b3d6d61ca6788f1922d
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SHA256
de8f674e914b11d418860730c0297cd0a0ea44aa3d2bd58053d2c9a5b259a987
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SHA512
16cd85c45a035425ae9428ec657c60b2ce5c2bc8623385d46fa05896a5fd6ce61a93abe069cb11e0f8fd3ee98cd83319e6b09580fef6b8b57a6163a8592ec079
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SSDEEP
12288:U9tpJ9zb1wqWIjX0n6j/PKJc3G5OF8wBjmqU888888888888W888888888884HMT:6ttzBwqWUX0c/W55GtQUMLIbvO
Malware Config
Signatures
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Detect Neshta payload 4 IoCs
resource yara_rule behavioral2/files/0x000600000002023a-13.dat family_neshta behavioral2/memory/1724-94-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/1724-95-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/1724-97-0x0000000000400000-0x000000000041B000-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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation Utilman.exe -
Executes dropped EXE 1 IoCs
pid Process 4932 Utilman.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\" %*" Utilman.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\MICROS~1\EDGEUP~1\13147~1.37\MICROS~2.EXE Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~2\wab.exe Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmpconfig.exe Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmpshare.exe Utilman.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOF5E2~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~4.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe Utilman.exe File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~4.EXE Utilman.exe File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MI9C33~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MIA062~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmprph.exe Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\java.exe Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE Utilman.exe File opened for modification C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE Utilman.exe File opened for modification C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~3.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOBD5D~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\INTERN~1\ielowutil.exe Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~4\setup_wm.exe Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\WI8A19~1\ImagingDevices.exe Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~3.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GO664E~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe Utilman.exe File opened for modification C:\PROGRA~3\PACKAG~1\{63880~1\WINDOW~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~2\wabmig.exe Utilman.exe File opened for modification C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe Utilman.exe File opened for modification C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE Utilman.exe File opened for modification C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE Utilman.exe File opened for modification C:\PROGRA~3\PACKAG~1\{D87AE~1\WINDOW~1.EXE Utilman.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\svchost.com Utilman.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Accessibility Features 1 TTPs
Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.
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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 Utilman.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Utilman.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\" %*" Utilman.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1724 wrote to memory of 4932 1724 Utilman.exe 83 PID 1724 wrote to memory of 4932 1724 Utilman.exe 83 PID 1724 wrote to memory of 4932 1724 Utilman.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\Utilman.exe"C:\Users\Admin\AppData\Local\Temp\Utilman.exe"1⤵
- Checks computer location settings
- 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:1724 -
C:\Users\Admin\AppData\Local\Temp\3582-490\Utilman.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\Utilman.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4932
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Network
MITRE ATT&CK Enterprise v15
Persistence
Event Triggered Execution
2Accessibility Features
1Change Default File Association
1Privilege Escalation
Event Triggered Execution
2Accessibility Features
1Change Default File Association
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
86KB
MD53b73078a714bf61d1c19ebc3afc0e454
SHA19abeabd74613a2f533e2244c9ee6f967188e4e7e
SHA256ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29
SHA51275959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4
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Filesize
669KB
MD5660158b03c50e0bbc9a3b0821c89434d
SHA179ca4437ffa533bf1f711929621509f72ee199ab
SHA25606b838ab8356069aa14e89af36236d0ef8499adac0c6646fc0f9d86e39b0adb5
SHA5125f2474616edaaea39066b6400b3937ebe91896067af16312a713ad250ece5705e64a42cabd67eaaff880524e0fcf44b8131a72aa6a02c4dcb68aeb4719607559