Analysis

  • max time kernel
    135s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/09/2024, 03:44

General

  • Target

    39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe

  • Size

    501KB

  • MD5

    6b34408cb796d4e16a6caa577ebce6b9

  • SHA1

    f011ab355ac5a00204c033f3ac73848f6ce4c0ee

  • SHA256

    39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a

  • SHA512

    344defa68966df547a0504ee221a2037f737d469e0c496009209f9334589f0f73ac69226bb74ea60eb116332ccaefa0d5c1f8972a5b9d34628d9bfcc4147ea84

  • SSDEEP

    12288:E2iNErX80k+laBnUISbE0u9QgYZoXONvIGc2:E1ij8v+MKjbE0ul+Nx

Malware Config

Extracted

Family

xworm

Version

5.0

C2

91.92.120.13:7099

Mutex

ZCamGCh7lBqmpyCR

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • 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 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
    "C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4036
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1328
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DTEmeRxUBaLqyA.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1164
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DTEmeRxUBaLqyA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8FB8.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3752
    • C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
      "C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3316
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4076,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=4128 /prefetch:8
    1⤵
      PID:1396

    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

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

      Filesize

      18KB

      MD5

      bfb5c166de6ed1ecfcfc079a100d0ded

      SHA1

      566f98f1cbeedbebc874c8590c6d97bca0bfbdf0

      SHA256

      077db2edc06a286a969d1d7cf50142570b5179bb635a3a2ec82e3cb3bf83e66e

      SHA512

      dd4ca36bfd82f4fc71d34531b9667b82debfee93e02686b8ac72f0776b5456e642d311ea38cdd1dee2648239d03ded494e2dbdc276912e8d8933b4d99ce9b94c

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_p1okfixv.vom.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp8FB8.tmp

      Filesize

      1KB

      MD5

      ab883fa3d1b6d0510c65bdd9f4b8eba4

      SHA1

      1d60ffdcd30cdec633620bf668ee9856a4ea236e

      SHA256

      d6664b3da4cc7736ce46a23007b33a537347f996eb0d35299a5dbc698f487db1

      SHA512

      5035d1df5bdbfc5d06052bbf6085d922ed842d9066cb9bd46cf5ab0741a07edfa138e1be06ee1d225f9c5aa32cca60532251c955d1de3c8725fbbdc2f4e2f5e4

    • memory/1164-74-0x0000000006FE0000-0x0000000007083000-memory.dmp

      Filesize

      652KB

    • memory/1164-52-0x0000000006FA0000-0x0000000006FD2000-memory.dmp

      Filesize

      200KB

    • memory/1164-78-0x00000000073A0000-0x0000000007436000-memory.dmp

      Filesize

      600KB

    • memory/1164-77-0x0000000007190000-0x000000000719A000-memory.dmp

      Filesize

      40KB

    • memory/1164-76-0x0000000007120000-0x000000000713A000-memory.dmp

      Filesize

      104KB

    • memory/1164-75-0x0000000007760000-0x0000000007DDA000-memory.dmp

      Filesize

      6.5MB

    • memory/1164-82-0x0000000007460000-0x000000000747A000-memory.dmp

      Filesize

      104KB

    • memory/1164-72-0x00000000063E0000-0x00000000063FE000-memory.dmp

      Filesize

      120KB

    • memory/1164-53-0x0000000074D40000-0x0000000074D8C000-memory.dmp

      Filesize

      304KB

    • memory/1164-79-0x0000000007320000-0x0000000007331000-memory.dmp

      Filesize

      68KB

    • memory/1164-51-0x0000000005E80000-0x0000000005ECC000-memory.dmp

      Filesize

      304KB

    • memory/1164-50-0x0000000005DD0000-0x0000000005DEE000-memory.dmp

      Filesize

      120KB

    • memory/1164-20-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/1164-90-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/1164-49-0x0000000005920000-0x0000000005C74000-memory.dmp

      Filesize

      3.3MB

    • memory/1164-24-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/1164-21-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/1328-16-0x0000000004760000-0x0000000004796000-memory.dmp

      Filesize

      216KB

    • memory/1328-80-0x0000000007260000-0x000000000726E000-memory.dmp

      Filesize

      56KB

    • memory/1328-38-0x0000000005740000-0x00000000057A6000-memory.dmp

      Filesize

      408KB

    • memory/1328-37-0x00000000058A0000-0x0000000005906000-memory.dmp

      Filesize

      408KB

    • memory/1328-89-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/1328-83-0x0000000007350000-0x0000000007358000-memory.dmp

      Filesize

      32KB

    • memory/1328-23-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/1328-19-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/1328-18-0x0000000004E50000-0x0000000005478000-memory.dmp

      Filesize

      6.2MB

    • memory/1328-17-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/1328-54-0x0000000074D40000-0x0000000074D8C000-memory.dmp

      Filesize

      304KB

    • memory/1328-81-0x0000000007270000-0x0000000007284000-memory.dmp

      Filesize

      80KB

    • memory/1328-30-0x0000000005570000-0x0000000005592000-memory.dmp

      Filesize

      136KB

    • memory/3316-31-0x0000000000400000-0x0000000000410000-memory.dmp

      Filesize

      64KB

    • memory/4036-7-0x00000000744BE000-0x00000000744BF000-memory.dmp

      Filesize

      4KB

    • memory/4036-8-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/4036-10-0x00000000081B0000-0x0000000008200000-memory.dmp

      Filesize

      320KB

    • memory/4036-6-0x0000000005470000-0x000000000548A000-memory.dmp

      Filesize

      104KB

    • memory/4036-5-0x0000000005120000-0x000000000512A000-memory.dmp

      Filesize

      40KB

    • memory/4036-11-0x00000000080F0000-0x000000000818C000-memory.dmp

      Filesize

      624KB

    • memory/4036-0-0x00000000744BE000-0x00000000744BF000-memory.dmp

      Filesize

      4KB

    • memory/4036-4-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB

    • memory/4036-9-0x0000000005430000-0x0000000005440000-memory.dmp

      Filesize

      64KB

    • memory/4036-3-0x0000000005040000-0x00000000050D2000-memory.dmp

      Filesize

      584KB

    • memory/4036-2-0x00000000056C0000-0x0000000005C64000-memory.dmp

      Filesize

      5.6MB

    • memory/4036-1-0x00000000005E0000-0x0000000000664000-memory.dmp

      Filesize

      528KB

    • memory/4036-48-0x00000000744B0000-0x0000000074C60000-memory.dmp

      Filesize

      7.7MB