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Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-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 3 IoCs
resource yara_rule behavioral1/files/0x0001000000010319-11.dat family_neshta behavioral1/memory/2084-86-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral1/memory/2084-88-0x0000000000400000-0x000000000041B000-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 3008 Utilman.exe -
Loads dropped DLL 2 IoCs
pid Process 2084 Utilman.exe 2084 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\Adobe\READER~1.0\Reader\A3DUTI~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe Utilman.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.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\Office14\INFOPATH.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\READER~1.0\Reader\LOGTRA~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE Utilman.exe File opened for modification C:\PROGRA~2\WI54FB~1\setup_wm.exe Utilman.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.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\Office14\VPREVIEW.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\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.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\Office14\GRAPH.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE Utilman.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmpshare.exe Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~1\wabmig.exe Utilman.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmpconfig.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\Office14\CLVIEW.EXE Utilman.exe File opened for modification C:\PROGRA~2\WI54FB~1\wmlaunch.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\MICROS~1\Office14\NAMECO~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE Utilman.exe File opened for modification C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe Utilman.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE Utilman.exe File opened for modification C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE Utilman.exe File opened for modification C:\PROGRA~2\WINDOW~1\WinMail.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~2\WI54FB~1\WMPDMC.exe Utilman.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.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\Office14\ACCICONS.EXE Utilman.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~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~4\ImagingDevices.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 4 IoCs
description pid Process procid_target PID 2084 wrote to memory of 3008 2084 Utilman.exe 30 PID 2084 wrote to memory of 3008 2084 Utilman.exe 30 PID 2084 wrote to memory of 3008 2084 Utilman.exe 30 PID 2084 wrote to memory of 3008 2084 Utilman.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\Utilman.exe"C:\Users\Admin\AppData\Local\Temp\Utilman.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:2084 -
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:3008
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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
547KB
MD5cf6c595d3e5e9667667af096762fd9c4
SHA19bb44da8d7f6457099cb56e4f7d1026963dce7ce
SHA256593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d
SHA512ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80
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Filesize
252KB
MD59e2b9928c89a9d0da1d3e8f4bd96afa7
SHA1ec66cda99f44b62470c6930e5afda061579cde35
SHA2568899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043
SHA5122ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156
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Filesize
669KB
MD5660158b03c50e0bbc9a3b0821c89434d
SHA179ca4437ffa533bf1f711929621509f72ee199ab
SHA25606b838ab8356069aa14e89af36236d0ef8499adac0c6646fc0f9d86e39b0adb5
SHA5125f2474616edaaea39066b6400b3937ebe91896067af16312a713ad250ece5705e64a42cabd67eaaff880524e0fcf44b8131a72aa6a02c4dcb68aeb4719607559