Analysis

  • max time kernel
    118s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    09-01-2022 20:21

General

  • Target

    E11E2425C62F34EBB3F640BAEEFB67D5.exe.dll

  • Size

    105.8MB

  • MD5

    e11e2425c62f34ebb3f640baeefb67d5

  • SHA1

    7dc6f8aaaf4431c365564a51dd37c143d857b89e

  • SHA256

    237deba138355bfb448e74bfb68fc868f4807b24d68715a6d47e348fc0cf9257

  • SHA512

    a0739d0141b41bcec079de8fac6df70dc93100721ad1f04ef9cbbf52102ed4b7bbfd7f088618ce9ac939d8fa7d6837a0c822c303d55d7c7fb2d1221d13703e48

Malware Config

Signatures

  • GoldDragon

    GoldDragon is a second-stage backdoor attributed to Kimsuky.

  • GoldDragon 2021 Stage2 infostealer 3 IoCs

    Detect GoldDragon InfoStealer Stage 2.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\E11E2425C62F34EBB3F640BAEEFB67D5.exe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\E11E2425C62F34EBB3F640BAEEFB67D5.exe.dll,#1
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1180
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c taskkill /f /im daumcleaner.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:544
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im daumcleaner.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:784
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ipconfig/all >>"C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat" & arp -a >>"C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1116
        • C:\Windows\SysWOW64\ipconfig.exe
          ipconfig /all
          4⤵
          • Gathers network information
          PID:1552
        • C:\Windows\SysWOW64\ARP.EXE
          arp -a
          4⤵
            PID:1208
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c systeminfo >>"C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1216
          • C:\Windows\SysWOW64\systeminfo.exe
            systeminfo
            4⤵
            • Gathers system information
            PID:1512
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c tasklist >>"C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1700
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:360
        • C:\Windows\SysWOW64\svchost.exe
          "C:\Windows\system32\svchost.exe"
          3⤵
          • Suspicious behavior: GetForegroundWindowSpam
          PID:700

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat

      MD5

      ccaec4ba5926458cf1ff3f11ef0b2eb2

      SHA1

      849a508ff4981c7e06bdeb56eaaeb1bdcfb7af26

      SHA256

      97d2b06e9807e176b84415284631cedbc4ba13f00521fba4827c3ceeea3de031

      SHA512

      93b79d3ea1496380644d288b4b1b434c9ed6abd6cf9e210862f14622a0e4d6c6be178e7d25ea7042174b14c6745a6b08236adc95aaf426d349b7772d95164912

    • C:\Users\Admin\AppData\Roaming\OneDriver\out\PI_001.dat

      MD5

      5b4c3b3a75ae01b2f7bef6f7d4da9a9d

      SHA1

      88d5fe4965d59454dd36bf025782368de2acba54

      SHA256

      691cf500c9ae9d87e32641fdeaf50da896e0621b1af87afb70f4d375b4702978

      SHA512

      f28812f72a3462f4bc6ff6b4b0d9f7b089ba294510e782035c68abd30c0de8ba7193d97d1f11bc1a46dbe4d7ce6cf98de36890f104e6a69b21a61b474e9cb109

    • memory/360-67-0x0000000000000000-mapping.dmp

    • memory/544-56-0x0000000000000000-mapping.dmp

    • memory/700-72-0x00000000000D0000-0x0000000000129000-memory.dmp

      Filesize

      356KB

    • memory/700-69-0x00000000000D0000-0x0000000000129000-memory.dmp

      Filesize

      356KB

    • memory/700-70-0x00000000000DCC77-mapping.dmp

    • memory/700-68-0x00000000000D0000-0x0000000000129000-memory.dmp

      Filesize

      356KB

    • memory/784-57-0x0000000000000000-mapping.dmp

    • memory/1116-58-0x0000000000000000-mapping.dmp

    • memory/1180-54-0x0000000000000000-mapping.dmp

    • memory/1180-55-0x0000000075F21000-0x0000000075F23000-memory.dmp

      Filesize

      8KB

    • memory/1208-61-0x0000000000000000-mapping.dmp

    • memory/1216-62-0x0000000000000000-mapping.dmp

    • memory/1512-64-0x0000000000000000-mapping.dmp

    • memory/1552-59-0x0000000000000000-mapping.dmp

    • memory/1700-65-0x0000000000000000-mapping.dmp