Resubmissions

01-02-2023 05:13

230201-fwfl3sca33 9

Analysis

  • max time kernel
    150s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    01-02-2023 05:13

General

  • Target

    3817bad277aa50016e08eed35e92d4a3b5247633.exe

  • Size

    876KB

  • MD5

    6b1f65c5297138a312c83c277c258bcb

  • SHA1

    3817bad277aa50016e08eed35e92d4a3b5247633

  • SHA256

    c2e98978063f02f9769d8372d10abc3fe734cd7e686c6ab5dedb08dd57076b17

  • SHA512

    213008ba436056bbeac9434f72d318c0af1a4fd4f7c082da3c32b0c1d801f3ae31208be3b2cd6e6cdaefa7728575757e7987230fb1d79895f214d4fa7b491bb1

  • SSDEEP

    24576:GKm0WEPfv82Kww5Y3awdtWs8RPrK7LBmH0I:hmtUv4bY3hh8lrB

Score
9/10

Malware Config

Signatures

  • NirSoft MailPassView 4 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 9 IoCs
  • Drops startup file 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3817bad277aa50016e08eed35e92d4a3b5247633.exe
    "C:\Users\Admin\AppData\Local\Temp\3817bad277aa50016e08eed35e92d4a3b5247633.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\3817bad277aa50016e08eed35e92d4a3b5247633.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\tmpDCE8.tmp"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1076
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\tmp59D5.tmp"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1696

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Defense Evasion

Scripting

1
T1064

Collection

Email Collection

1
T1114

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpDCE8.tmp
    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • memory/1076-72-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1076-74-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1076-59-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1076-58-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1076-61-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1076-63-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1076-65-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1076-67-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1076-68-0x000000000044472E-mapping.dmp
  • memory/1076-71-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/1540-73-0x0000000074830000-0x0000000074DDB000-memory.dmp
    Filesize

    5.7MB

  • memory/1540-57-0x0000000074830000-0x0000000074DDB000-memory.dmp
    Filesize

    5.7MB

  • memory/1540-55-0x000000000048B2FE-mapping.dmp
  • memory/1544-54-0x0000000076201000-0x0000000076203000-memory.dmp
    Filesize

    8KB

  • memory/1696-76-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1696-77-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1696-81-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1696-82-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1696-79-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1696-84-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1696-85-0x000000000041211A-mapping.dmp
  • memory/1696-88-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB

  • memory/1696-89-0x0000000000400000-0x000000000041C000-memory.dmp
    Filesize

    112KB