Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2024, 03:23

General

  • Target

    BQ_PO#385995.exe

  • Size

    398KB

  • MD5

    7e3e88fad78dff83ea421084315bfd78

  • SHA1

    2e185874ff61f0097b34ae66cdc09bbbf1951f62

  • SHA256

    26c434592adaffa102b1cc61983fd9355dfa4fe0e06ad3acb50732892f67d466

  • SHA512

    432da571335f6eb1b827eceb1bf0b0cc62b2a1a7734fce3374620769487e908916a39b0e4c94ef6e764f65f3ce7066040055e52d14a7b84bb1e1650ec355460f

  • SSDEEP

    6144:OzzpHNxvSI3xlkVxOwDWcvPRavLhOPxersLWd3JyQdETiOhhe3DU705AN8u1tdQM:INxvSec3RMY+sLSZyyETvzck05AGuvr

Malware Config

Extracted

Family

xworm

Version

3.1

C2

69.174.100.131:7000

Mutex

I1KOVoZcD6Qqbmm9

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BQ_PO#385995.exe
    "C:\Users\Admin\AppData\Local\Temp\BQ_PO#385995.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:428
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5048
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3180
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'regasm.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3948
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
        PID:3552

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

            Filesize

            2KB

            MD5

            968cb9309758126772781b83adb8a28f

            SHA1

            8da30e71accf186b2ba11da1797cf67f8f78b47c

            SHA256

            92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

            SHA512

            4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

            Filesize

            18KB

            MD5

            4d7ec824948fa74fbbbae697be5fd2ff

            SHA1

            a2bd9d2b1775d9c4381f651c55bdc7807c2f3c50

            SHA256

            7f1ff3f6b3508dbf5a7621e9c2893307ba22e10d9ed3a465d8af93362a87581c

            SHA512

            1dcc6defe93e6eb2a1c0175e43d1990a3a3e3b5b54d4c573d06a4e7d9da86135ae090519ea6dce940090dcf679d74d24b3a672777e262e530e3bdd3ba52eec1c

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xmoysoar.hra.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • memory/428-1-0x00007FF849A43000-0x00007FF849A45000-memory.dmp

            Filesize

            8KB

          • memory/428-2-0x000002318DAB0000-0x000002318DB10000-memory.dmp

            Filesize

            384KB

          • memory/428-3-0x00007FF849A40000-0x00007FF84A501000-memory.dmp

            Filesize

            10.8MB

          • memory/428-0-0x000002318D4F0000-0x000002318D558000-memory.dmp

            Filesize

            416KB

          • memory/428-7-0x00007FF849A40000-0x00007FF84A501000-memory.dmp

            Filesize

            10.8MB

          • memory/3180-28-0x0000000006E60000-0x0000000006E92000-memory.dmp

            Filesize

            200KB

          • memory/3180-42-0x00000000081E0000-0x000000000885A000-memory.dmp

            Filesize

            6.5MB

          • memory/3180-10-0x00000000744F0000-0x0000000074CA0000-memory.dmp

            Filesize

            7.7MB

          • memory/3180-11-0x00000000744F0000-0x0000000074CA0000-memory.dmp

            Filesize

            7.7MB

          • memory/3180-12-0x00000000744F0000-0x0000000074CA0000-memory.dmp

            Filesize

            7.7MB

          • memory/3180-13-0x00000000058C0000-0x00000000058E2000-memory.dmp

            Filesize

            136KB

          • memory/3180-15-0x0000000006230000-0x0000000006296000-memory.dmp

            Filesize

            408KB

          • memory/3180-8-0x00000000052B0000-0x00000000052E6000-memory.dmp

            Filesize

            216KB

          • memory/3180-14-0x00000000061C0000-0x0000000006226000-memory.dmp

            Filesize

            408KB

          • memory/3180-25-0x00000000062A0000-0x00000000065F4000-memory.dmp

            Filesize

            3.3MB

          • memory/3180-26-0x0000000006870000-0x000000000688E000-memory.dmp

            Filesize

            120KB

          • memory/3180-27-0x00000000068C0000-0x000000000690C000-memory.dmp

            Filesize

            304KB

          • memory/3180-53-0x00000000744F0000-0x0000000074CA0000-memory.dmp

            Filesize

            7.7MB

          • memory/3180-29-0x000000006FAA0000-0x000000006FAEC000-memory.dmp

            Filesize

            304KB

          • memory/3180-39-0x0000000007850000-0x000000000786E000-memory.dmp

            Filesize

            120KB

          • memory/3180-50-0x0000000007EE0000-0x0000000007EE8000-memory.dmp

            Filesize

            32KB

          • memory/3180-41-0x0000000007870000-0x0000000007913000-memory.dmp

            Filesize

            652KB

          • memory/3180-9-0x0000000005920000-0x0000000005F48000-memory.dmp

            Filesize

            6.2MB

          • memory/3180-43-0x0000000007BA0000-0x0000000007BBA000-memory.dmp

            Filesize

            104KB

          • memory/3180-44-0x0000000007C10000-0x0000000007C1A000-memory.dmp

            Filesize

            40KB

          • memory/3180-45-0x0000000007E20000-0x0000000007EB6000-memory.dmp

            Filesize

            600KB

          • memory/3180-46-0x0000000007DA0000-0x0000000007DB1000-memory.dmp

            Filesize

            68KB

          • memory/3180-47-0x0000000007DF0000-0x0000000007DFE000-memory.dmp

            Filesize

            56KB

          • memory/3180-48-0x0000000007E00000-0x0000000007E14000-memory.dmp

            Filesize

            80KB

          • memory/3180-49-0x0000000007F00000-0x0000000007F1A000-memory.dmp

            Filesize

            104KB

          • memory/3948-60-0x0000000005520000-0x0000000005874000-memory.dmp

            Filesize

            3.3MB

          • memory/3948-66-0x000000006FAA0000-0x000000006FAEC000-memory.dmp

            Filesize

            304KB

          • memory/5048-40-0x00000000744FE000-0x00000000744FF000-memory.dmp

            Filesize

            4KB

          • memory/5048-6-0x0000000005650000-0x00000000056EC000-memory.dmp

            Filesize

            624KB

          • memory/5048-5-0x00000000744FE000-0x00000000744FF000-memory.dmp

            Filesize

            4KB

          • memory/5048-4-0x0000000000400000-0x000000000040E000-memory.dmp

            Filesize

            56KB

          • memory/5048-77-0x00000000744F0000-0x0000000074CA0000-memory.dmp

            Filesize

            7.7MB

          • memory/5048-78-0x00000000744F0000-0x0000000074CA0000-memory.dmp

            Filesize

            7.7MB

          • memory/5048-79-0x0000000006800000-0x0000000006892000-memory.dmp

            Filesize

            584KB

          • memory/5048-80-0x0000000006E50000-0x00000000073F4000-memory.dmp

            Filesize

            5.6MB