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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/11/2024, 11:30

General

  • Target

    b2e9b488e12360fc455512ddae99dba10dd455df423853875e89ac1ffbdd06be.exe

  • Size

    1.3MB

  • MD5

    5e8c689ae7f342a2b2dcf76ad9f990d4

  • SHA1

    dc659d8c8284c0ec2d5cd4b0c4dd3a250d481331

  • SHA256

    b2e9b488e12360fc455512ddae99dba10dd455df423853875e89ac1ffbdd06be

  • SHA512

    46bd683b51c45cc92d5b35c236d8e339ab808cd87465eebd7f1a96ccdb28f994e0048a185a46a68dfd106e6fdd6e46a75c85caea180c03ac20ca2e3e778e64c9

  • SSDEEP

    12288:0kjmrocDPyNhuTsAGBDNMrRbeyBYidXG4LrXFb2N:0ZbPyNqsAwyFCreDJKN

Malware Config

Extracted

Family

xworm

Version

3.1

C2

savelat19847.duckdns.org:7000

Mutex

6FO7gyeQQmt4IGRZ

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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2e9b488e12360fc455512ddae99dba10dd455df423853875e89ac1ffbdd06be.exe
    "C:\Users\Admin\AppData\Local\Temp\b2e9b488e12360fc455512ddae99dba10dd455df423853875e89ac1ffbdd06be.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2032
    • 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:1836
      • 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:3844
      • 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:652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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

    3d928378132a84f574cfd9eec9a46c71

    SHA1

    e13f8823a41a2adfc3466880242bbc1c811f0521

    SHA256

    a54631662ae8ad22592e70af8910ac1ff8cccec30b5f6bb39b0306a29be0714e

    SHA512

    4303d2b09b22878f340889790698c0fa0914a126df25649ba3047fc42c419c59d604b372a3367adb077f5be8e1e2fabbfffafabb7c5b58b1a8e77a203628b504

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eusptbih.3oj.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/652-65-0x0000000070290000-0x00000000702DC000-memory.dmp

    Filesize

    304KB

  • memory/652-63-0x00000000060A0000-0x00000000063F4000-memory.dmp

    Filesize

    3.3MB

  • memory/1836-4-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/1836-6-0x0000000005110000-0x00000000051AC000-memory.dmp

    Filesize

    624KB

  • memory/1836-79-0x0000000006C30000-0x00000000071D4000-memory.dmp

    Filesize

    5.6MB

  • memory/1836-78-0x00000000065E0000-0x0000000006672000-memory.dmp

    Filesize

    584KB

  • memory/1836-77-0x0000000074CE0000-0x0000000075490000-memory.dmp

    Filesize

    7.7MB

  • memory/1836-76-0x0000000074CE0000-0x0000000075490000-memory.dmp

    Filesize

    7.7MB

  • memory/1836-5-0x0000000074CEE000-0x0000000074CEF000-memory.dmp

    Filesize

    4KB

  • memory/2032-7-0x00007FFD6D780000-0x00007FFD6E241000-memory.dmp

    Filesize

    10.8MB

  • memory/2032-0-0x00007FFD6D783000-0x00007FFD6D785000-memory.dmp

    Filesize

    8KB

  • memory/2032-3-0x00007FFD6D780000-0x00007FFD6E241000-memory.dmp

    Filesize

    10.8MB

  • memory/2032-2-0x0000025CF3960000-0x0000025CF39C0000-memory.dmp

    Filesize

    384KB

  • memory/2032-1-0x0000025CF1C50000-0x0000025CF1C58000-memory.dmp

    Filesize

    32KB

  • memory/3844-28-0x00000000066C0000-0x00000000066F2000-memory.dmp

    Filesize

    200KB

  • memory/3844-47-0x0000000007650000-0x0000000007664000-memory.dmp

    Filesize

    80KB

  • memory/3844-27-0x0000000006130000-0x000000000617C000-memory.dmp

    Filesize

    304KB

  • memory/3844-25-0x0000000005C70000-0x0000000005FC4000-memory.dmp

    Filesize

    3.3MB

  • memory/3844-29-0x0000000070290000-0x00000000702DC000-memory.dmp

    Filesize

    304KB

  • memory/3844-39-0x00000000072B0000-0x00000000072CE000-memory.dmp

    Filesize

    120KB

  • memory/3844-40-0x00000000072E0000-0x0000000007383000-memory.dmp

    Filesize

    652KB

  • memory/3844-41-0x0000000007A50000-0x00000000080CA000-memory.dmp

    Filesize

    6.5MB

  • memory/3844-42-0x0000000007410000-0x000000000742A000-memory.dmp

    Filesize

    104KB

  • memory/3844-43-0x0000000007480000-0x000000000748A000-memory.dmp

    Filesize

    40KB

  • memory/3844-44-0x0000000007690000-0x0000000007726000-memory.dmp

    Filesize

    600KB

  • memory/3844-45-0x0000000007610000-0x0000000007621000-memory.dmp

    Filesize

    68KB

  • memory/3844-46-0x0000000007640000-0x000000000764E000-memory.dmp

    Filesize

    56KB

  • memory/3844-26-0x00000000060E0000-0x00000000060FE000-memory.dmp

    Filesize

    120KB

  • memory/3844-48-0x0000000007750000-0x000000000776A000-memory.dmp

    Filesize

    104KB

  • memory/3844-49-0x0000000007730000-0x0000000007738000-memory.dmp

    Filesize

    32KB

  • memory/3844-52-0x0000000074CE0000-0x0000000075490000-memory.dmp

    Filesize

    7.7MB

  • memory/3844-24-0x0000000074CE0000-0x0000000075490000-memory.dmp

    Filesize

    7.7MB

  • memory/3844-12-0x00000000053D0000-0x0000000005436000-memory.dmp

    Filesize

    408KB

  • memory/3844-15-0x0000000005440000-0x00000000054A6000-memory.dmp

    Filesize

    408KB

  • memory/3844-19-0x0000000074CE0000-0x0000000075490000-memory.dmp

    Filesize

    7.7MB

  • memory/3844-11-0x00000000052B0000-0x00000000052D2000-memory.dmp

    Filesize

    136KB

  • memory/3844-10-0x0000000005540000-0x0000000005B68000-memory.dmp

    Filesize

    6.2MB

  • memory/3844-9-0x0000000074CE0000-0x0000000075490000-memory.dmp

    Filesize

    7.7MB

  • memory/3844-8-0x00000000027B0000-0x00000000027E6000-memory.dmp

    Filesize

    216KB