Analysis

  • max time kernel
    149s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    14-03-2023 08:06

General

  • Target

    86a4cdd8a4ce24624f28de4d77283dbb.exe

  • Size

    795KB

  • MD5

    86a4cdd8a4ce24624f28de4d77283dbb

  • SHA1

    c363e391e8a6db6b69444de2a7f1ba22f7f78eba

  • SHA256

    bcb279b39192d656df357e8bb33bc52ebddc209d6ecdbff75ca65334af06905a

  • SHA512

    cd6d53a7e1564117ef8c9cc277bbb3ece668b211fbabef00192ccbbd916dfec9225fcf498248347b048957b123cfc0332e059aedf84d6f945411c8eed29f10db

  • SSDEEP

    12288:RQMHUQ8/KyJa1XNrW1kQZTTU2pJrt0EeUOf9ngj6pGJ4iHfQG+HHIisH:KMHGyZJWDZTIMJWEeUe9nVi/b+HoBH

Malware Config

Extracted

Family

cryptbot

C2

http://ernlen22.top/gate.php

Attributes
  • payload_url

    http://ovalim02.top/magpie.dat

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 18 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 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.

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\86a4cdd8a4ce24624f28de4d77283dbb.exe
    "C:\Users\Admin\AppData\Local\Temp\86a4cdd8a4ce24624f28de4d77283dbb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\86a4cdd8a4ce24624f28de4d77283dbb.exe
      "C:\Users\Admin\AppData\Local\Temp\86a4cdd8a4ce24624f28de4d77283dbb.exe"
      2⤵
      • Maps connected drives based on registry
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\C7623F2CB85E31D3\magpie.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:324
        • C:\Users\Admin\AppData\Roaming\C7623F2CB85E31D3\magpie.exe
          C:\Users\Admin\AppData\Roaming\C7623F2CB85E31D3\magpie.exe
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Loads dropped DLL
          • Checks whether UAC is enabled
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1096
          • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
            "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious behavior: AddClipboardFormatListener
            • Suspicious behavior: EnumeratesProcesses
            PID:792
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\86a4cdd8a4ce24624f28de4d77283dbb.exe"
        3⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:1664
        • C:\Windows\SysWOW64\timeout.exe
          timeout -t 5
          4⤵
          • Delays execution with timeout.exe
          PID:1736

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\176E.tmp
    Filesize

    32B

    MD5

    48255136fc205998b4ebbe6f72b5cdd0

    SHA1

    c6f2c7fdd75a999a61ddfb5b4923d6a0dad917b1

    SHA256

    00523df8a35803806212867d9f6ab89d17a1bfdd3aef5fbb1dc10fcd6faa114c

    SHA512

    c74a7e214f93d124aed393e00f720ac91ca46328f4edf710b26235145b676003261943e4779acbc52ef14667a78636968c04c1065ac5cc70ba9f54d6ab0226de

  • C:\Users\Admin\AppData\Local\Temp\182D.tmp
    Filesize

    71KB

    MD5

    6082dd13ad8102d17f9db9cd07600e97

    SHA1

    39becc88cea914d843b3c5521038907f2f2f4e71

    SHA256

    40a3f938c8c1eb929771c444d5f8887c42c7cde6281690e2071a2593ba92e48a

    SHA512

    b7d5c716b6339b3138492c8b0cf4c9540a8d8224f9d5e72e34ceab442bdfa9c855473bbed68a489851f019461e1b1f9d86baf067be556c67b948c930899d3c1e

  • C:\Users\Admin\AppData\Roaming\C7623F2CB85E31D3\magpie.exe
    Filesize

    2.6MB

    MD5

    7b151d5d1cc93ce12a0739aee4747551

    SHA1

    e0f938edcae3de4059e9022d254f3dd04ad47991

    SHA256

    f1de8d1de91170b9f7e715575c51c5846370233c33c50831b909c5cc8207a0ad

    SHA512

    3481b855ba1d6f96058d187730edd2816cd64a6670b27699355e89f2cf1ccde67c0656979e15a9891b46369a46ae7483ff645e5cc2820888f5b696976a9cd944

  • C:\Users\Admin\AppData\Roaming\C7623F2CB85E31D3\magpie.exe
    Filesize

    2.6MB

    MD5

    7b151d5d1cc93ce12a0739aee4747551

    SHA1

    e0f938edcae3de4059e9022d254f3dd04ad47991

    SHA256

    f1de8d1de91170b9f7e715575c51c5846370233c33c50831b909c5cc8207a0ad

    SHA512

    3481b855ba1d6f96058d187730edd2816cd64a6670b27699355e89f2cf1ccde67c0656979e15a9891b46369a46ae7483ff645e5cc2820888f5b696976a9cd944

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    Filesize

    2.6MB

    MD5

    7b151d5d1cc93ce12a0739aee4747551

    SHA1

    e0f938edcae3de4059e9022d254f3dd04ad47991

    SHA256

    f1de8d1de91170b9f7e715575c51c5846370233c33c50831b909c5cc8207a0ad

    SHA512

    3481b855ba1d6f96058d187730edd2816cd64a6670b27699355e89f2cf1ccde67c0656979e15a9891b46369a46ae7483ff645e5cc2820888f5b696976a9cd944

  • \Users\Admin\AppData\Roaming\C7623F2CB85E31D3\magpie.exe
    Filesize

    2.6MB

    MD5

    7b151d5d1cc93ce12a0739aee4747551

    SHA1

    e0f938edcae3de4059e9022d254f3dd04ad47991

    SHA256

    f1de8d1de91170b9f7e715575c51c5846370233c33c50831b909c5cc8207a0ad

    SHA512

    3481b855ba1d6f96058d187730edd2816cd64a6670b27699355e89f2cf1ccde67c0656979e15a9891b46369a46ae7483ff645e5cc2820888f5b696976a9cd944

  • \Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    Filesize

    2.6MB

    MD5

    7b151d5d1cc93ce12a0739aee4747551

    SHA1

    e0f938edcae3de4059e9022d254f3dd04ad47991

    SHA256

    f1de8d1de91170b9f7e715575c51c5846370233c33c50831b909c5cc8207a0ad

    SHA512

    3481b855ba1d6f96058d187730edd2816cd64a6670b27699355e89f2cf1ccde67c0656979e15a9891b46369a46ae7483ff645e5cc2820888f5b696976a9cd944

  • memory/324-149-0x0000000001F50000-0x0000000002634000-memory.dmp
    Filesize

    6.9MB

  • memory/792-162-0x0000000000E40000-0x0000000001524000-memory.dmp
    Filesize

    6.9MB

  • memory/792-158-0x0000000000E40000-0x0000000001524000-memory.dmp
    Filesize

    6.9MB

  • memory/792-159-0x0000000000E40000-0x0000000001524000-memory.dmp
    Filesize

    6.9MB

  • memory/792-160-0x0000000000E40000-0x0000000001524000-memory.dmp
    Filesize

    6.9MB

  • memory/792-161-0x0000000000E40000-0x0000000001524000-memory.dmp
    Filesize

    6.9MB

  • memory/792-163-0x0000000000E40000-0x0000000001524000-memory.dmp
    Filesize

    6.9MB

  • memory/792-164-0x0000000000E40000-0x0000000001524000-memory.dmp
    Filesize

    6.9MB

  • memory/940-62-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-60-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-55-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-56-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-57-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-140-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-85-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-58-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-64-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-59-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-54-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB

  • memory/940-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1096-148-0x0000000000880000-0x0000000000F64000-memory.dmp
    Filesize

    6.9MB

  • memory/1096-156-0x0000000000880000-0x0000000000F64000-memory.dmp
    Filesize

    6.9MB

  • memory/1096-150-0x0000000000880000-0x0000000000F64000-memory.dmp
    Filesize

    6.9MB

  • memory/1096-147-0x0000000000880000-0x0000000000F64000-memory.dmp
    Filesize

    6.9MB

  • memory/1096-146-0x0000000000880000-0x0000000000F64000-memory.dmp
    Filesize

    6.9MB

  • memory/1096-145-0x0000000000880000-0x0000000000F64000-memory.dmp
    Filesize

    6.9MB