Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    03-11-2021 07:36

General

  • Target

    2e45c3146bebd87ccef96e054374ea11.exe

  • Size

    645KB

  • MD5

    2e45c3146bebd87ccef96e054374ea11

  • SHA1

    f2be6622242c311beb54f984c2fd85b865c2431c

  • SHA256

    df6fa5b55c8196df0a53575cd26f5a7e53146899d41ab1a1a3acdb320f185d1f

  • SHA512

    4277153eaea844fdcd1ab7920d290f7a877a2a46e6d71b5b962f445395e7c0299e859409fb52e96920bc31ab6d7ed2be81e69021c0145585984dc57c76469b51

Malware Config

Signatures

  • Contains code to disable Windows Defender 2 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • ParallaxRat

    ParallaxRat is a multipurpose RAT written in MASM.

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e45c3146bebd87ccef96e054374ea11.exe
    "C:\Users\Admin\AppData\Local\Temp\2e45c3146bebd87ccef96e054374ea11.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Windows\system32\schtasks.exe
      schtasks /create /f /sc minute /mo 400 /tn 1045 /tr "C:\Users\Admin\AppData\Roaming\1045\wsmprovhost.exe
      2⤵
      • Creates scheduled task(s)
      PID:1644
    • C:\Users\Admin\AppData\Roaming\security\wowreg32.exe
      "C:\Users\Admin\AppData\Roaming\security\wowreg32.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:836
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /st "04:12" /sc daily /mo "2" /tn "" /tr "'explorer'C_Settings.URL1"
        3⤵
        • Creates scheduled task(s)
        PID:1624
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /st "04:12" /sc daily /mo "5" /tn "" /tr "'explorer'C_Settings.URL2"
        3⤵
        • Creates scheduled task(s)
        PID:1732
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 836 -s 2596
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:1968

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/836-82-0x000000001B243000-0x000000001B244000-memory.dmp

    Filesize

    4KB

  • memory/836-111-0x000000001B244000-0x000000001B245000-memory.dmp

    Filesize

    4KB

  • memory/836-62-0x0000000000800000-0x0000000000801000-memory.dmp

    Filesize

    4KB

  • memory/836-64-0x000000001B210000-0x000000001B212000-memory.dmp

    Filesize

    8KB

  • memory/836-81-0x000000001B242000-0x000000001B243000-memory.dmp

    Filesize

    4KB

  • memory/836-110-0x000000001B256000-0x000000001B25C000-memory.dmp

    Filesize

    24KB

  • memory/836-109-0x000000001B24D000-0x000000001B250000-memory.dmp

    Filesize

    12KB

  • memory/836-108-0x000000001B24D000-0x000000001B24F000-memory.dmp

    Filesize

    8KB

  • memory/836-107-0x000000001B244000-0x000000001B24C000-memory.dmp

    Filesize

    32KB

  • memory/836-106-0x000000001B255000-0x000000001B258000-memory.dmp

    Filesize

    12KB

  • memory/836-105-0x000000001B24D000-0x000000001B250000-memory.dmp

    Filesize

    12KB

  • memory/836-104-0x000000001B27D000-0x000000001B285000-memory.dmp

    Filesize

    32KB

  • memory/836-103-0x000000001B275000-0x000000001B27D000-memory.dmp

    Filesize

    32KB

  • memory/836-102-0x000000001B271000-0x000000001B275000-memory.dmp

    Filesize

    16KB

  • memory/836-101-0x000000001B26D000-0x000000001B271000-memory.dmp

    Filesize

    16KB

  • memory/836-100-0x000000001B269000-0x000000001B26D000-memory.dmp

    Filesize

    16KB

  • memory/836-99-0x000000001B265000-0x000000001B269000-memory.dmp

    Filesize

    16KB

  • memory/836-98-0x000000001B261000-0x000000001B265000-memory.dmp

    Filesize

    16KB

  • memory/836-97-0x000000001B25D000-0x000000001B261000-memory.dmp

    Filesize

    16KB

  • memory/836-96-0x000000001B259000-0x000000001B25D000-memory.dmp

    Filesize

    16KB

  • memory/836-95-0x000000001B23E000-0x000000001B241000-memory.dmp

    Filesize

    12KB

  • memory/836-94-0x000000001B245000-0x000000001B24C000-memory.dmp

    Filesize

    28KB

  • memory/836-93-0x000000001B24D000-0x000000001B250000-memory.dmp

    Filesize

    12KB

  • memory/836-92-0x000000001B255000-0x000000001B259000-memory.dmp

    Filesize

    16KB

  • memory/836-91-0x000000001B253000-0x000000001B255000-memory.dmp

    Filesize

    8KB

  • memory/836-90-0x000000001B251000-0x000000001B253000-memory.dmp

    Filesize

    8KB

  • memory/836-89-0x000000001B24F000-0x000000001B251000-memory.dmp

    Filesize

    8KB

  • memory/836-88-0x000000001B24D000-0x000000001B24F000-memory.dmp

    Filesize

    8KB

  • memory/836-87-0x000000001B24B000-0x000000001B24D000-memory.dmp

    Filesize

    8KB

  • memory/836-86-0x000000001B249000-0x000000001B24B000-memory.dmp

    Filesize

    8KB

  • memory/836-85-0x000000001B247000-0x000000001B249000-memory.dmp

    Filesize

    8KB

  • memory/836-84-0x000000001B245000-0x000000001B247000-memory.dmp

    Filesize

    8KB

  • memory/836-83-0x000000001B244000-0x000000001B245000-memory.dmp

    Filesize

    4KB

  • memory/836-80-0x000000001B241000-0x000000001B242000-memory.dmp

    Filesize

    4KB

  • memory/836-128-0x000000001B24F000-0x000000001B252000-memory.dmp

    Filesize

    12KB

  • memory/836-126-0x000000001B265000-0x000000001B274000-memory.dmp

    Filesize

    60KB

  • memory/836-79-0x000000001B240000-0x000000001B241000-memory.dmp

    Filesize

    4KB

  • memory/836-78-0x000000001B23F000-0x000000001B240000-memory.dmp

    Filesize

    4KB

  • memory/836-77-0x000000001B23E000-0x000000001B23F000-memory.dmp

    Filesize

    4KB

  • memory/836-76-0x000000001B23D000-0x000000001B23E000-memory.dmp

    Filesize

    4KB

  • memory/836-75-0x000000001B23C000-0x000000001B23D000-memory.dmp

    Filesize

    4KB

  • memory/836-74-0x000000001B23B000-0x000000001B23C000-memory.dmp

    Filesize

    4KB

  • memory/836-73-0x000000001B23A000-0x000000001B23B000-memory.dmp

    Filesize

    4KB

  • memory/836-72-0x000000001B239000-0x000000001B23A000-memory.dmp

    Filesize

    4KB

  • memory/836-71-0x000000001B238000-0x000000001B239000-memory.dmp

    Filesize

    4KB

  • memory/836-70-0x000000001B237000-0x000000001B238000-memory.dmp

    Filesize

    4KB

  • memory/836-69-0x000000001B236000-0x000000001B237000-memory.dmp

    Filesize

    4KB

  • memory/836-68-0x000000001B235000-0x000000001B236000-memory.dmp

    Filesize

    4KB

  • memory/836-67-0x000000001B216000-0x000000001B235000-memory.dmp

    Filesize

    124KB

  • memory/836-112-0x000000001B256000-0x000000001B259000-memory.dmp

    Filesize

    12KB

  • memory/836-113-0x000000001B256000-0x000000001B25C000-memory.dmp

    Filesize

    24KB

  • memory/836-114-0x000000001B244000-0x000000001B24C000-memory.dmp

    Filesize

    32KB

  • memory/836-115-0x000000001B258000-0x000000001B259000-memory.dmp

    Filesize

    4KB

  • memory/836-117-0x000000001B24F000-0x000000001B254000-memory.dmp

    Filesize

    20KB

  • memory/836-119-0x000000001B255000-0x000000001B256000-memory.dmp

    Filesize

    4KB

  • memory/836-118-0x000000001B26B000-0x000000001B274000-memory.dmp

    Filesize

    36KB

  • memory/836-116-0x000000001B266000-0x000000001B268000-memory.dmp

    Filesize

    8KB

  • memory/836-121-0x000000001B258000-0x000000001B25C000-memory.dmp

    Filesize

    16KB

  • memory/836-120-0x000000001B24D000-0x000000001B24F000-memory.dmp

    Filesize

    8KB

  • memory/836-123-0x000000001B235000-0x000000001B242000-memory.dmp

    Filesize

    52KB

  • memory/836-122-0x000000001B244000-0x000000001B247000-memory.dmp

    Filesize

    12KB

  • memory/836-125-0x000000001B258000-0x000000001B25C000-memory.dmp

    Filesize

    16KB

  • memory/836-124-0x000000001B24D000-0x000000001B250000-memory.dmp

    Filesize

    12KB

  • memory/836-127-0x000000001B256000-0x000000001B258000-memory.dmp

    Filesize

    8KB

  • memory/1668-58-0x000000001B0D0000-0x000000001B0D2000-memory.dmp

    Filesize

    8KB

  • memory/1668-55-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/1968-141-0x000007FEFB561000-0x000007FEFB563000-memory.dmp

    Filesize

    8KB