Analysis

  • max time kernel
    145s
  • max time network
    129s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    29-10-2021 12:35

General

  • Target

    6628819927788177272-DEKONT.exe

  • Size

    561KB

  • MD5

    ffe72c0b077d5f676be820489ecec81a

  • SHA1

    cde15eab3928df21425863da28c42dd34b708f4e

  • SHA256

    675b0dff6f40d1838f3e386abdb322f9491069f7b57a9fc1dd33fde9805d923b

  • SHA512

    c4e475affe7225e77ef7f14acedd4ff14e37cab7efe792c85a8b60d3943e1662daa5a7bd42a2cb42a5dfe6962be6d512821a9126c791b9761bdef0cdf1fba03c

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • A310logger Executable 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6628819927788177272-DEKONT.exe
    "C:\Users\Admin\AppData\Local\Temp\6628819927788177272-DEKONT.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3792
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DkmTmLL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp72DA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3392
    • C:\Users\Admin\AppData\Local\Temp\6628819927788177272-DEKONT.exe
      "C:\Users\Admin\AppData\Local\Temp\6628819927788177272-DEKONT.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3596
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • outlook_office_path
        • outlook_win_path
        PID:2452
      • C:\Program Files (x86)\Windows Mail\WinMail.exe
        "C:\Program Files (x86)\Windows Mail\WinMail" OCInstallUserConfigOE
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1328
        • C:\Program Files\Windows Mail\WinMail.exe
          "C:\Program Files\Windows Mail\WinMail" OCInstallUserConfigOE
          4⤵
            PID:3308

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    2
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
      MD5

      91b41651e6e9ab352805c6d35a297d08

      SHA1

      11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e

      SHA256

      0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723

      SHA512

      b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe
      MD5

      91b41651e6e9ab352805c6d35a297d08

      SHA1

      11b8eaa7b7941461bc952b11ec3f07d25dcd1c2e

      SHA256

      0872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723

      SHA512

      b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\credentials.txt
      MD5

      055c857272026583a61e1b5821c69a24

      SHA1

      ec39d34f16487682801dd2b319554cbed57feca4

      SHA256

      190db16bb64995e3bdea04b9e6fc1994dacfea3253a7559732205b1d41362b84

      SHA512

      d7833c4651683e95959107e05b07b60d2e963b9fbecd0106b329e2087d1dfc9aedb962b334e22b6b462699cbce86097d4d50ce5d1310ad098e3531efaa4e204b

    • memory/1328-136-0x0000000000000000-mapping.dmp
    • memory/2452-129-0x0000000000000000-mapping.dmp
    • memory/2452-134-0x000000001B8F0000-0x000000001B8F2000-memory.dmp
      Filesize

      8KB

    • memory/2452-132-0x0000000000D10000-0x0000000000D11000-memory.dmp
      Filesize

      4KB

    • memory/3308-137-0x0000000000000000-mapping.dmp
    • memory/3392-124-0x0000000000000000-mapping.dmp
    • memory/3596-126-0x0000000000401B9C-mapping.dmp
    • memory/3596-127-0x0000000000CB0000-0x0000000000CB6000-memory.dmp
      Filesize

      24KB

    • memory/3596-128-0x0000000000CB0000-0x0000000000CBA000-memory.dmp
      Filesize

      40KB

    • memory/3596-125-0x0000000000400000-0x0000000000456000-memory.dmp
      Filesize

      344KB

    • memory/3792-115-0x0000000000160000-0x0000000000161000-memory.dmp
      Filesize

      4KB

    • memory/3792-123-0x00000000085D0000-0x0000000008648000-memory.dmp
      Filesize

      480KB

    • memory/3792-122-0x0000000008430000-0x0000000008431000-memory.dmp
      Filesize

      4KB

    • memory/3792-121-0x0000000004F50000-0x0000000004F56000-memory.dmp
      Filesize

      24KB

    • memory/3792-120-0x0000000004C70000-0x0000000004C71000-memory.dmp
      Filesize

      4KB

    • memory/3792-119-0x0000000004A80000-0x0000000004F7E000-memory.dmp
      Filesize

      5.0MB

    • memory/3792-118-0x0000000004B70000-0x0000000004B71000-memory.dmp
      Filesize

      4KB

    • memory/3792-117-0x0000000004F80000-0x0000000004F81000-memory.dmp
      Filesize

      4KB