Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2023 10:44

General

  • Target

    7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600.exe

  • Size

    2.5MB

  • MD5

    e82db091360e2e26bc4ec60bad3e52e7

  • SHA1

    d0bf4beee1dcb49d35261b67ff5c7f2c0aa132f9

  • SHA256

    7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600

  • SHA512

    c3c9547a7b48934b0932d73f98d4256e52a59effd1d20dbfa3c3f6d3713875f38910b73a2edf96bf49d444c41a0e0589282eba701515367df378d1f2584c101e

  • SSDEEP

    49152:j2bERBctaqluW8thU0kW2LTxMlR6bJl7Z/EqFtP9E5gWwXo4MLVH4RY0E:KO0lqtWJZMlkJlNdVE5nwCVYlE

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600.exe
    "C:\Users\Admin\AppData\Local\Temp\7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1036
    • C:\Users\Admin\AppData\Local\Temp\is-PBKCQ.tmp\7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-PBKCQ.tmp\7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600.tmp" /SL5="$C01F6,2408051,54272,C:\Users\Admin\AppData\Local\Temp\7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:836
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1324
        • C:\Program Files (x86)\Common Files\TVSmile\TVSmile.exe
          "C:\Program Files (x86)\Common Files\TVSmile\TVSmile.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4724
        • C:\Program Files (x86)\Common Files\TVSmile\TVSmile.exe
          "C:\Program Files (x86)\Common Files\TVSmile\TVSmile.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1668
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 25
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1516
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 25
            4⤵
              PID:3236

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\Common Files\TVSmile\TVSmile.exe

        Filesize

        2.4MB

        MD5

        20e94eef2a8d6bd184e1223f3a77cccd

        SHA1

        7bba68c51883a24b54373df118ac1c3020d6537a

        SHA256

        39faa6a73c21ec4cf82ebf099c49eab09e114f8f5cca1696670bbb920c1a9bda

        SHA512

        64d14e126cc64ed94c239de6a09703f1ee298060ac99f17ebcb8d37ed52396319e3afd36ead031bd994211d7de4c8d8160dee978bd6a24d7fdc83e462b2ed4bb

      • C:\Program Files (x86)\Common Files\TVSmile\TVSmile.exe

        Filesize

        2.4MB

        MD5

        20e94eef2a8d6bd184e1223f3a77cccd

        SHA1

        7bba68c51883a24b54373df118ac1c3020d6537a

        SHA256

        39faa6a73c21ec4cf82ebf099c49eab09e114f8f5cca1696670bbb920c1a9bda

        SHA512

        64d14e126cc64ed94c239de6a09703f1ee298060ac99f17ebcb8d37ed52396319e3afd36ead031bd994211d7de4c8d8160dee978bd6a24d7fdc83e462b2ed4bb

      • C:\Program Files (x86)\Common Files\TVSmile\TVSmile.exe

        Filesize

        2.4MB

        MD5

        20e94eef2a8d6bd184e1223f3a77cccd

        SHA1

        7bba68c51883a24b54373df118ac1c3020d6537a

        SHA256

        39faa6a73c21ec4cf82ebf099c49eab09e114f8f5cca1696670bbb920c1a9bda

        SHA512

        64d14e126cc64ed94c239de6a09703f1ee298060ac99f17ebcb8d37ed52396319e3afd36ead031bd994211d7de4c8d8160dee978bd6a24d7fdc83e462b2ed4bb

      • C:\Users\Admin\AppData\Local\Temp\is-1VL71.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-PBKCQ.tmp\7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600.tmp

        Filesize

        683KB

        MD5

        f507ce43ea08d1721816ad4b0e090f50

        SHA1

        e4f02bcd410bddabea4c741838d9a88386547629

        SHA256

        d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

        SHA512

        37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

      • C:\Users\Admin\AppData\Local\Temp\is-PBKCQ.tmp\7bf73fe4d0ea0c20abefb15a0465e0d0cbd380e4f24fc8b750e34755bce61600.tmp

        Filesize

        683KB

        MD5

        f507ce43ea08d1721816ad4b0e090f50

        SHA1

        e4f02bcd410bddabea4c741838d9a88386547629

        SHA256

        d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

        SHA512

        37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

      • memory/836-10-0x0000000000760000-0x0000000000761000-memory.dmp

        Filesize

        4KB

      • memory/836-66-0x0000000000760000-0x0000000000761000-memory.dmp

        Filesize

        4KB

      • memory/836-64-0x0000000000400000-0x00000000004BA000-memory.dmp

        Filesize

        744KB

      • memory/1036-2-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1036-0-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1036-63-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/1668-65-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-82-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-111-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-108-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-105-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-101-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-69-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-70-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-73-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-76-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-79-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-62-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-83-0x00000000007E0000-0x000000000088D000-memory.dmp

        Filesize

        692KB

      • memory/1668-88-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-91-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-92-0x00000000007E0000-0x000000000088D000-memory.dmp

        Filesize

        692KB

      • memory/1668-95-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/1668-98-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/4724-54-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/4724-55-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/4724-58-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB

      • memory/4724-59-0x0000000000400000-0x0000000000672000-memory.dmp

        Filesize

        2.4MB