Analysis

  • max time kernel
    123s
  • max time network
    14s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-07-2021 15:07

General

  • Target

    RFQ Ranger Neo.doc

  • Size

    4KB

  • MD5

    d51db0f037f97835cb334b38b4ce772f

  • SHA1

    ebdd88a747493385c96da530271e214df874f0ab

  • SHA256

    9eb87a2416b79b100ca24fa57d1bfa15fcce90a44f5cbb10353ed7e873394753

  • SHA512

    094f8019710b1a176bd5bc55ad34ce36f7e01944d1376ffd8bde1b807bbd4e6cfc02c2903027acf0b6912a0a9d6f39ce3397d37e4106584a6187e90a9483f966

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Neways@123

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 3 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\RFQ Ranger Neo.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:360
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:824
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:1128
      • C:\Users\Admin\AppData\Roaming\poiuytrewasdfghjbvdghty.exe
        "C:\Users\Admin\AppData\Roaming\poiuytrewasdfghjbvdghty.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:568
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OpGRFzGqGKqPJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD04.tmp"
          3⤵
          • Creates scheduled task(s)
          PID:1632
        • C:\Users\Admin\AppData\Roaming\poiuytrewasdfghjbvdghty.exe
          "C:\Users\Admin\AppData\Roaming\poiuytrewasdfghjbvdghty.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1988

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpFD04.tmp

      MD5

      b442375721093d59fe49762018ff9ca2

      SHA1

      7242a1de6aae1819045ee201def18c73e57e13d0

      SHA256

      3bf39a5c99ce74234bf70afa7d09774a2b9ee489e7574f06548dbe7aa8dd8992

      SHA512

      94f61d0ebf51799b818a8d0219c758e2f1ca7fccbe79dc28462578eb13ba6a75ddba22692312236bbeaf18790f769ebf2061a1f86998dbf08846a3ed178be02e

    • C:\Users\Admin\AppData\Roaming\poiuytrewasdfghjbvdghty.exe

      MD5

      ba9c98a7b7ae0c218b4b29579b6cef0d

      SHA1

      eb485b41a99ca4b38183f130b9a180bcab2f3477

      SHA256

      b9cc4e51b1539a1e0222c25d78b79329cbcfc16c92f552f1a9627eef8738f439

      SHA512

      63aea87f171082a2763a1edbba8a33513b563295fa8f7e8ee75863fc8c12161d13118d6af99f5dd55b36ffab3321ab0d04270bcafad0e39e307f21f3f86ad8f2

    • C:\Users\Admin\AppData\Roaming\poiuytrewasdfghjbvdghty.exe

      MD5

      ba9c98a7b7ae0c218b4b29579b6cef0d

      SHA1

      eb485b41a99ca4b38183f130b9a180bcab2f3477

      SHA256

      b9cc4e51b1539a1e0222c25d78b79329cbcfc16c92f552f1a9627eef8738f439

      SHA512

      63aea87f171082a2763a1edbba8a33513b563295fa8f7e8ee75863fc8c12161d13118d6af99f5dd55b36ffab3321ab0d04270bcafad0e39e307f21f3f86ad8f2

    • C:\Users\Admin\AppData\Roaming\poiuytrewasdfghjbvdghty.exe

      MD5

      ba9c98a7b7ae0c218b4b29579b6cef0d

      SHA1

      eb485b41a99ca4b38183f130b9a180bcab2f3477

      SHA256

      b9cc4e51b1539a1e0222c25d78b79329cbcfc16c92f552f1a9627eef8738f439

      SHA512

      63aea87f171082a2763a1edbba8a33513b563295fa8f7e8ee75863fc8c12161d13118d6af99f5dd55b36ffab3321ab0d04270bcafad0e39e307f21f3f86ad8f2

    • \Users\Admin\AppData\Roaming\poiuytrewasdfghjbvdghty.exe

      MD5

      ba9c98a7b7ae0c218b4b29579b6cef0d

      SHA1

      eb485b41a99ca4b38183f130b9a180bcab2f3477

      SHA256

      b9cc4e51b1539a1e0222c25d78b79329cbcfc16c92f552f1a9627eef8738f439

      SHA512

      63aea87f171082a2763a1edbba8a33513b563295fa8f7e8ee75863fc8c12161d13118d6af99f5dd55b36ffab3321ab0d04270bcafad0e39e307f21f3f86ad8f2

    • memory/360-77-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/360-61-0x000000006FB91000-0x000000006FB93000-memory.dmp

      Filesize

      8KB

    • memory/360-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/360-63-0x0000000075451000-0x0000000075453000-memory.dmp

      Filesize

      8KB

    • memory/360-60-0x0000000072111000-0x0000000072114000-memory.dmp

      Filesize

      12KB

    • memory/568-66-0x0000000000000000-mapping.dmp

    • memory/568-75-0x0000000005340000-0x00000000053B8000-memory.dmp

      Filesize

      480KB

    • memory/568-76-0x00000000007D0000-0x000000000080E000-memory.dmp

      Filesize

      248KB

    • memory/568-72-0x00000000004A0000-0x00000000004BB000-memory.dmp

      Filesize

      108KB

    • memory/568-71-0x0000000000810000-0x0000000000811000-memory.dmp

      Filesize

      4KB

    • memory/568-69-0x0000000000180000-0x0000000000181000-memory.dmp

      Filesize

      4KB

    • memory/824-73-0x0000000000000000-mapping.dmp

    • memory/824-74-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

      Filesize

      8KB

    • memory/1632-78-0x0000000000000000-mapping.dmp

    • memory/1988-80-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1988-81-0x000000000043747E-mapping.dmp

    • memory/1988-83-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1988-85-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

      Filesize

      4KB