Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/06/2026, 12:17

General

  • Target
    YandexPackSetup.exe
  • Size 10.1MB
  • Sample260619-pf3lcahs21
  • SHA256 d5b72aa5b7c38546bf8b8bcd2ed5349f15a20e23cff2542ee77df782be549b3f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Windows directory 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 10 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\YandexPackSetup.exe
    "C:\Users\Admin\AppData\Local\Temp\YandexPackSetup.exe"
    1⤵
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3640
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3224
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 0FBFB119E53831B4FD8D0D908085A2B3
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3392
      • C:\Users\Admin\AppData\Local\Temp\DAB80854-C211-4C19-8E51-276DA3A01E81\lite_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\DAB80854-C211-4C19-8E51-276DA3A01E81\lite_installer.exe" --use-user-default-locale --silent --cumtom-welcome-page=https://browser.yandex.ru/promo/welcome_com/5/
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1888
      • C:\Users\Admin\AppData\Local\Temp\8D79ECAF-A989-4516-93B4-44CB2B99C89B\seederexe.exe
        "C:\Users\Admin\AppData\Local\Temp\8D79ECAF-A989-4516-93B4-44CB2B99C89B\seederexe.exe" "--yqs=" "--yhp=" "--ilight=" "--oem=" "--nopin=n" "--pin_custom=n" "--pin_desktop=n" "--pin_taskbar=y" "--locale=us" "--browser=" "--browser_default=" "--loglevel=trace" "--ess=" "--clids=C:\Users\Admin\AppData\Local\Temp\clids-yasearch.xml" "--sender=C:\Users\Admin\AppData\Local\Temp\5C8AA722-D5FD-4D3C-AC2E-8E31A9FDBFDD\sender.exe" "--is_elevated=yes" "--ui_level=5" "--good_token=x" "--no_opera=n"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5756
        • C:\Users\Admin\AppData\Local\Temp\5C8AA722-D5FD-4D3C-AC2E-8E31A9FDBFDD\sender.exe
          C:\Users\Admin\AppData\Local\Temp\5C8AA722-D5FD-4D3C-AC2E-8E31A9FDBFDD\sender.exe --send "/status.xml?clid=2255073&uuid=24ef7cc0-4eda-4f92-9865-ca9a1fc80018&vnt=Windows 10x64&file-no=8%0A15%0A25%0A45%0A57%0A59%0A102%0A111%0A125%0A129%0A"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:13280

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e584533.rbs

        • Path C:\Config.Msi\e584533.rbs
        • Size 575B
        • SHA256 263bef7d20026187a4d3a3841cc9873c5adda6ada2ecdc72ba0ebf4ae50993ac
        • MD5 SHA1 SHA512 TLSH

        357F04AD41BCF5FE18FCB69F60C6680F_394487CAFBCFB8C5917AD7A10924C8A7

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\357F04AD41BCF5FE18FCB69F60C6680F_394487CAFBCFB8C5917AD7A10924C8A7
        • Size 1KB
        • SHA256 870a1fdc22b8d01a28dd8ee1129d70af5c6b713529c813fe959a6b1089fe69e3
        • MD5 SHA1 SHA512 TLSH

        9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
        • Size 1KB
        • SHA256 dbf985456d5ac583940336a55fcfa96dd3ffdb72478c30682461b94bd9a0e647
        • MD5 SHA1 SHA512 TLSH

        357F04AD41BCF5FE18FCB69F60C6680F_394487CAFBCFB8C5917AD7A10924C8A7

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\357F04AD41BCF5FE18FCB69F60C6680F_394487CAFBCFB8C5917AD7A10924C8A7
        • Size 536B
        • SHA256 d44acf0525350362c8dc22f602b73e275a277a092376a669d6eecf2daa16ba2f
        • MD5 SHA1 SHA512 TLSH

        9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
        • Size 536B
        • SHA256 20f62dab79ea20b12a04798723081b994a7438178fa95b7dedb4f35b3f6cbdc6
        • MD5 SHA1 SHA512 TLSH

        sender.exe

        • Path C:\Users\Admin\AppData\Local\Temp\5C8AA722-D5FD-4D3C-AC2E-8E31A9FDBFDD\sender.exe
        • Size 260KB
        • SHA256 36022c6ecb3426791e6edee9074a3861fe5b660d98f2b2b7c13b80fe11a75577
        • MD5 SHA1 SHA512 SSDEEP TLSH

        seederexe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\8D79ECAF-A989-4516-93B4-44CB2B99C89B\seederexe.exe
        • Size 8.6MB
        • SHA256 35585d12899435e13e186490fcf1d270adbe3c74a1e0578b3d9314858bf2d797
        • MD5 SHA1 SHA512 SSDEEP TLSH

        lite_installer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\DAB80854-C211-4C19-8E51-276DA3A01E81\lite_installer.exe
        • Size 419KB
        • SHA256 688d0b782437ccfae2944281ade651a2da063f222e80b3510789dbdce8b00fdc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        YandexSearch00000.log

        • Path C:\Users\Admin\AppData\Local\Temp\YandexSearch00000.log
        • Size 34KB
        • SHA256 ae222be520cce89e5a45c739f11a399af88467f23296d62b7c942bfdbb2c7566
        • MD5 SHA1 SHA512 SSDEEP TLSH

        clids-yasearch.xml

        • Path C:\Users\Admin\AppData\Local\Temp\clids-yasearch.xml
        • Size 560B
        • SHA256 52d8e057664a63a6c14fb766f45ad5a5b2f40383a81a1251b3de94291adb7845
        • MD5 SHA1 SHA512 TLSH

        omnija-20261719.zip

        • Path C:\Users\Admin\AppData\Local\Temp\omnija-20261719.zip
        • Size 45.1MB
        • SHA256 7d5072b7fa0880c245cb54a627474b67df7b4f3f33a7ae828b39417f9621eef0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tmp5756aaaaaa

        • Path C:\Users\Admin\AppData\Local\Temp\tmp5756aaaaaa
        • Size 2.5MB
        • SHA256 74d5e8d3cd8d659d8df8e6f306832dfc252e1a6e676bb60334e31b5943deb4fb
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vendor00000.xml

        • Path C:\Users\Admin\AppData\Local\Temp\vendor00000.xml
        • Size 577B
        • SHA256 d68fa576fc72424371c6a475337ab2cec8b3a305f8c3979e144ff3edf4898a2f
        • MD5 SHA1 SHA512 TLSH

        YandexSearch.msi

        • Path C:\Users\Admin\AppData\Local\Temp\{5B964E0E-B9A3-4276-9ED9-4D5A5720747A}\YandexSearch.msi
        • Size 9.8MB
        • SHA256 bfb1e5c8aee5ce902c33d2bf8d57c8a868c4e0e3fb2e776ab53efc42b758b98e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        places.sqlite-20260619121726.061680.backup

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\cdkjtsyx.Admin\places.sqlite-20260619121726.061680.backup
        • Size 68KB
        • SHA256 b6d278384a3684409a2a86f03e4f52869818ce7dd8b5779876960353f7d35dc1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Bookmarks-20260619121726.108557.backup

        • Path C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Bookmarks-20260619121726.108557.backup
        • Size 1KB
        • SHA256 2b167248e8136c4d45c2c46e2bff6fb5e5137dd4dfdccde998599be2df2e9335
        • MD5 SHA1 SHA512 TLSH

        Preferences-20260619121726.108557.backup

        • Path C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Preferences-20260619121726.108557.backup
        • Size 313B
        • SHA256 ed6a32e11cc99728771989b01f5ae813de80c46a59d3dc68c23a4671a343cb8c
        • MD5 SHA1 SHA512 TLSH

        ui

        • Path C:\Users\Admin\AppData\Roaming\Yandex\ui
        • Size 38B
        • SHA256 bb10625eacfba3829a74bdeb6d96abb9503b55abb8851dc778339501b5423dc2
        • MD5 SHA1 SHA512

        MSI46E7.tmp

        • Path C:\Windows\Installer\MSI46E7.tmp
        • Size 181KB
        • SHA256 a5dd2f97c6787c335b7807ff9b6966877e9dd811f9e26326837a7d2bd224de86
        • MD5 SHA1 SHA512 SSDEEP TLSH

        MSI4736.tmp

        • Path C:\Windows\Installer\MSI4736.tmp
        • Size 189KB
        • SHA256 669cc0aae068ced3154acaecb0c692c4c5e61bc2ca95b40395a3399e75fcb9b2
        • MD5 SHA1 SHA512 SSDEEP TLSH