Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01/12/2020, 22:11

General

  • Target
    productmanualsguide.ad89e6240e9a44989b04b561ca5d55ae.exe
  • Size 374KB
  • Sample201201-vxw4prcvsa
  • SHA256 30b040107c6934062082db4dd5e5988e6737f45dd00725065cbfb88b849ec05f
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 26 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • JavaScript code in executable 2 IoCs
  • Drops file in Program Files directory 29 IoCs
  • Drops file in Windows directory 11 IoCs
  • Modifies Internet Explorer settings 1 TTPs 247 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 166 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 76 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 25 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\productmanualsguide.ad89e6240e9a44989b04b561ca5d55ae.exe
    "C:\Users\Admin\AppData\Local\Temp\productmanualsguide.ad89e6240e9a44989b04b561ca5d55ae.exe"
    1⤵
    • Loads dropped DLL
    • Modifies Internet Explorer settings
    • Modifies Internet Explorer start page
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Windows\SysWOW64\Rundll32.exe
      "Rundll32.exe" "C:\Users\Admin\AppData\Local\ProductManualsGuideTooltab\TooltabExtension.dll",A -hp=https://hp.myway.com/productmanualsguide/ttab02/index.html -ua="(Windows NT 6.1; Win64; MSIE 11.0; Build 7601; SP 1)" -ul=https://anx.mindspark.com/anx.gif?anxa=%251&anxe=%252&anxt=B0472A38-E8F6-4E08-8810-24437E5CCB06&anxtv=2.8.1.1000&anxp=^CQW^xdm100^TTAB02^us&anxsi=1qa1&anxv=%253&anxd=2020-12-01&anxr=%254 -hu=SHOW
      2⤵
      • Loads dropped DLL
      PID:1644
    • C:\Users\Admin\AppData\Local\Temp\nss55BF.tmp\SlimCleanerPlus.exe
      SI_MODE=toaster SI_DELAY=60 SI_LAUNCH=onreboot @P2_ORIGIN=^CQW^xdm100^TTAB02^us @P2=^SW2^xdm110 @UL_STUBID=ad89e6240e9a44989b04b561ca5d55ae
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1000
      • C:\Users\Admin\AppData\Local\Temp\DriverUpdate-setup.exe
        "C:\Users\Admin\AppData\Local\Temp\DriverUpdate-setup.exe" SI_DELAY=60 SI_LAUNCH=onreboot
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1632
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1820 CREDAT:275457 /prefetch:2
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:240
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1820 CREDAT:209926 /prefetch:2
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:652
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1820 CREDAT:472072 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:1728
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1820 CREDAT:734240 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:2948
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2192
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding C743F45F47568E27DFE1A37D5E76A7C9
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      PID:2408

Network

        MITRE ATT&CK Enterprise v6

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        Downloads

        memory/668-4-0x000007FEF7800000-0x000007FEF7A7A000-memory.dmp

        memory/1632-36-0x0000000002730000-0x0000000002734000-memory.dmp

        memory/1632-90-0x0000000002330000-0x0000000002334000-memory.dmp

        memory/2192-88-0x0000000000E80000-0x0000000000E84000-memory.dmp

        memory/2192-67-0x0000000004EA0000-0x0000000004EA4000-memory.dmp

        memory/2192-59-0x0000000000F90000-0x0000000000F94000-memory.dmp

        memory/2192-68-0x0000000004F30000-0x0000000004F34000-memory.dmp

        memory/2192-89-0x00000000013E0000-0x00000000013E4000-memory.dmp

        memory/2192-60-0x0000000000E80000-0x0000000000E84000-memory.dmp