Analysis
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max time kernel
150s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20250502-en -
resource tags
arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system -
submitted
29/05/2025, 11:55
Static task
static1
Behavioral task
behavioral1
Sample
2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe
Resource
win11-20250502-en
General
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Target
2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe
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Size
7.3MB
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MD5
3d8ff4e557fda46d35764966472eafd0
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SHA1
99c2d5a979ab966ff2a02a9137446af9fcbc9870
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SHA256
2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a
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SHA512
120fab64f0df9c62767166f938af617e0861557d279daba307d23bea22d4e19c8e0e24b3e854ef5c8aaa7621b5fa6030629ab0e53fd9811b17a5bc1612d30c5f
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SSDEEP
98304:+waCELMjOLIalJ67sj4jmpRMTcToaxLQsp1RXp9nGeyYnXrwFZN8M4:+waCYLIal06MTo9RPGeyurwmL
Malware Config
Signatures
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Cosmu family
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Detects Cosmu payload 1 IoCs
Cosmu is a worm written in C++.
resource yara_rule behavioral1/memory/2268-85-0x0000000000400000-0x0000000000407000-memory.dmp family_cosmu -
Renames multiple (333) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files\Common Files\microsoft shared\ink\fr-FR\TabTip.exe.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols\symbase.xml.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\ipsjpn.xml.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-runtime-l1-1-0.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\Ole DB\es-ES\sqlxmlx.rll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\fi.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\sr-spc.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\symbols.xml.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\bg-BG\tipresx.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\dicjp.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\es-ES\InputPersonalization.exe.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\base_kor.xml.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\fsdefinitions\main\zh-dayi.xml.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwrenclm.dat.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\InputPersonalization.exe.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\it-IT\InputPersonalization.exe.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\7z.exe.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\eo.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\is.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\BlockPublish.mht.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\ipstr.xml.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\ja-JP\TipTsf.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\msadc\es-ES\msaddsr.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\msadc\ja-JP\msdaprsr.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\th.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-file-l2-1-0.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.sv-se.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-US\tipresx.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\Ole DB\en-US\sqlxmlx.rll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\Ole DB\es-ES\msdasqlr.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\Ole DB\sqlxmlx.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\fy.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\cs.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\he-IL\tipresx.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\th-TH\tipresx.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\ado\msado21.tlb.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\msadc\msadcor.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\kab.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-crt-multibyte-l1-1-0.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwrespsh.dat.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\ipsid.xml.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\Ole DB\fr-FR\sqlxmlx.rll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\en.ttt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\concrt140.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\de-DE\tabskb.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\en-US\ShapeCollector.exe.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\it-IT\tabskb.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\it-IT\msinfo32.exe.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\msadc\msdaprsr.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.nb-no.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\sr-Latn-RS\tipresx.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\ado\fr-FR\msader15.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\Ole DB\en-US\msdasqlr.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\Ole DB\en-US\oledb32r.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\api-ms-win-crt-conio-l1-1-0.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\ja.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\zh-TW\tipresx.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\7-Zip\Lang\da.txt.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\ar-SA\tipresx.dll.mui.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\dicjp.bin.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\hwritash.dat.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\ink\ipscht.xml.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe File created C:\Program Files\Common Files\System\Ole DB\msdasql.dll.tmp 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe -
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 2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe"C:\Users\Admin\AppData\Local\Temp\2f5d007bdd6a54ed13f2ffec7c25554a27d5f4ed7f20052b4b98b4e375d0f41a.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2268
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
7.3MB
MD5819592e45f0069a2e7bf1a1cc7a2f905
SHA19cb2e02292bc1bfe0864e85a9013e41ad69481fc
SHA2561cf5da50ce1f71a7e32b48433d1acbf1e475dcba33b6308e0c922f2f53a65090
SHA512feaf7e7640c6e3f3cc548cbdd509e5ce31cf1857d055ff416c87b4ee1a9e5f1cf9197e834e828f6d4e2595cc7cb1a0a9516927e32703b06645e930944a507d5c
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Filesize
7.4MB
MD599d30de333585091fc90a1144a77853f
SHA1cd0ce1c2ebe12685927a122c92cb949a151065c3
SHA256bc8d0500c315070bc3a99fc24ffa600e40a9259101d36ebd4f1c4382fb14fd92
SHA512ea76c0d496028c70884402434899a705c27de979af8cc69716da7da49b0342b1bfb9bd2e809675f7cec8d3a8c3e1506cdd3f6e91f3ec90e79a996681fb3eb0b2