Analysis
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max time kernel
94s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
14/09/2024, 08:59
Static task
static1
Behavioral task
behavioral1
Sample
cf17affffdf41d6dfaf83f59cb8a8490N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
cf17affffdf41d6dfaf83f59cb8a8490N.exe
Resource
win10v2004-20240802-en
General
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Target
cf17affffdf41d6dfaf83f59cb8a8490N.exe
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Size
128KB
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MD5
cf17affffdf41d6dfaf83f59cb8a8490
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SHA1
4dd5da527a73a4b6995bb74a1fa76c4284c83d57
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SHA256
c3dafa77bee00d1084186eebc45d272a4d8e882e16b38aa31c1f17c9d2170bdf
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SHA512
9e1fd3ca564a7dad8802b0766d85a81ead26fb8b15f02fbd2c0b4d40323e41759b2a463522c146d5968bf2847de92c93a20faa6e64da1a29e3f88109fdb3d86f
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SSDEEP
3072:dayh9szDuI0Y8euOArloYc8Bj3CZbWlOvoZSqjXH:dP9zY8eu5+b89SZMjX
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 2196 Nvwswf.exe 4296 Nvwswf.exe 228 Nvwswf.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nvwswf = "C:\\Users\\Admin\\AppData\\Roaming\\Nvwswf.exe" cf17affffdf41d6dfaf83f59cb8a8490N.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 5020 set thread context of 1576 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 83 PID 1576 set thread context of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 2196 set thread context of 4296 2196 Nvwswf.exe 93 PID 4296 set thread context of 228 4296 Nvwswf.exe 94 -
System Location Discovery: System Language Discovery 1 TTPs 8 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 iexplore.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cf17affffdf41d6dfaf83f59cb8a8490N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cf17affffdf41d6dfaf83f59cb8a8490N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cf17affffdf41d6dfaf83f59cb8a8490N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Nvwswf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Nvwswf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Nvwswf.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31131268" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31131268" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1999832415" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31131268" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "433069337" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2002957329" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2002957329" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A2A818A1-7277-11EF-9A03-DE20CD0D11AA} = "0" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31131268" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1999832415" IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4748 cf17affffdf41d6dfaf83f59cb8a8490N.exe 4748 cf17affffdf41d6dfaf83f59cb8a8490N.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 228 Nvwswf.exe Token: SeDebugPrivilege 4548 IEXPLORE.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2316 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 2196 Nvwswf.exe 2196 Nvwswf.exe 2316 IEXPLORE.EXE 2316 IEXPLORE.EXE 4548 IEXPLORE.EXE 4548 IEXPLORE.EXE 4548 IEXPLORE.EXE 4548 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 5020 wrote to memory of 1576 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 83 PID 5020 wrote to memory of 1576 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 83 PID 5020 wrote to memory of 1576 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 83 PID 5020 wrote to memory of 1576 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 83 PID 5020 wrote to memory of 1576 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 83 PID 5020 wrote to memory of 1576 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 83 PID 5020 wrote to memory of 1576 5020 cf17affffdf41d6dfaf83f59cb8a8490N.exe 83 PID 1576 wrote to memory of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 1576 wrote to memory of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 1576 wrote to memory of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 1576 wrote to memory of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 1576 wrote to memory of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 1576 wrote to memory of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 1576 wrote to memory of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 1576 wrote to memory of 4748 1576 cf17affffdf41d6dfaf83f59cb8a8490N.exe 84 PID 4748 wrote to memory of 2196 4748 cf17affffdf41d6dfaf83f59cb8a8490N.exe 91 PID 4748 wrote to memory of 2196 4748 cf17affffdf41d6dfaf83f59cb8a8490N.exe 91 PID 4748 wrote to memory of 2196 4748 cf17affffdf41d6dfaf83f59cb8a8490N.exe 91 PID 2196 wrote to memory of 4296 2196 Nvwswf.exe 93 PID 2196 wrote to memory of 4296 2196 Nvwswf.exe 93 PID 2196 wrote to memory of 4296 2196 Nvwswf.exe 93 PID 2196 wrote to memory of 4296 2196 Nvwswf.exe 93 PID 2196 wrote to memory of 4296 2196 Nvwswf.exe 93 PID 2196 wrote to memory of 4296 2196 Nvwswf.exe 93 PID 2196 wrote to memory of 4296 2196 Nvwswf.exe 93 PID 4296 wrote to memory of 228 4296 Nvwswf.exe 94 PID 4296 wrote to memory of 228 4296 Nvwswf.exe 94 PID 4296 wrote to memory of 228 4296 Nvwswf.exe 94 PID 4296 wrote to memory of 228 4296 Nvwswf.exe 94 PID 4296 wrote to memory of 228 4296 Nvwswf.exe 94 PID 4296 wrote to memory of 228 4296 Nvwswf.exe 94 PID 4296 wrote to memory of 228 4296 Nvwswf.exe 94 PID 4296 wrote to memory of 228 4296 Nvwswf.exe 94 PID 228 wrote to memory of 3976 228 Nvwswf.exe 97 PID 228 wrote to memory of 3976 228 Nvwswf.exe 97 PID 228 wrote to memory of 3976 228 Nvwswf.exe 97 PID 3976 wrote to memory of 2316 3976 iexplore.exe 98 PID 3976 wrote to memory of 2316 3976 iexplore.exe 98 PID 2316 wrote to memory of 4548 2316 IEXPLORE.EXE 99 PID 2316 wrote to memory of 4548 2316 IEXPLORE.EXE 99 PID 2316 wrote to memory of 4548 2316 IEXPLORE.EXE 99 PID 228 wrote to memory of 4548 228 Nvwswf.exe 99 PID 228 wrote to memory of 4548 228 Nvwswf.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5020 -
C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1576 -
C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"C:\Users\Admin\AppData\Local\Temp\cf17affffdf41d6dfaf83f59cb8a8490N.exe"3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4748 -
C:\Users\Admin\AppData\Roaming\Nvwswf.exe"C:\Users\Admin\AppData\Roaming\Nvwswf.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Users\Admin\AppData\Roaming\Nvwswf.exe"C:\Users\Admin\AppData\Roaming\Nvwswf.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4296 -
C:\Users\Admin\AppData\Roaming\Nvwswf.exe"C:\Users\Admin\AppData\Roaming\Nvwswf.exe"6⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:228 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"7⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3976 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE"8⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2316 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2316 CREDAT:17410 /prefetch:29⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4548
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD584231e6b703a4b64fa601076af9e016a
SHA1210e330be937e617085d28bf356c990a49dce0a5
SHA256e10b7b5f4f3291d340cebafd2d87bbec8689ffb1750a813a2887b6cd31ce61b3
SHA512e13fcb1e344dbd4cd9429faa51f61615ce602908e3eabb7ae9190e745f38747b62b563ca9c0c71abecff1fc398afd2652d32ec37511061d2dff2356aaad0b8d4
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5e5ca9793f84eafb90cff5d9070510360
SHA1c9948a44960e52bfb07615f3eefe8434b5a6e101
SHA25613d55b148e9c7442a070bfdf965368aaa93186236a40331fb12ecb1f798638d5
SHA5122b8f7e612e91d6ea6f46a78942b328d871f2efa7ca13e110bf53ed07a81c87a9d1c671735dcff0f86473d99ac942099bead81b9345997599baf2ceb4be37954d
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
128KB
MD5cf17affffdf41d6dfaf83f59cb8a8490
SHA14dd5da527a73a4b6995bb74a1fa76c4284c83d57
SHA256c3dafa77bee00d1084186eebc45d272a4d8e882e16b38aa31c1f17c9d2170bdf
SHA5129e1fd3ca564a7dad8802b0766d85a81ead26fb8b15f02fbd2c0b4d40323e41759b2a463522c146d5968bf2847de92c93a20faa6e64da1a29e3f88109fdb3d86f