Analysis

  • max time kernel
    127s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    27-07-2021 07:49

General

  • Target

    RFQ No3756368.doc

  • Size

    75KB

  • MD5

    b156ed4230557289721a0256a6aa23ea

  • SHA1

    59d8da9d1c4ec783f59d9c6ba330e4392151cb9a

  • SHA256

    8e97e85fd5881e5f4f31f95f5bc13de014ab3a3f278fec651f5208a73f22259e

  • SHA512

    8c1e68f8f497becf235c453c23eab1638ca4ceb283e92ab221ec366ed24b10152e4e2301fbf3739f095dc32c4b3f6fcec3432d587440fe54d4e2d6e7c6ef2d91

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.camerapro.co.za
  • Port:
    587
  • Username:
    orders@camerapro.co.za
  • Password:
    JJJ65259sss

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
  • Office loads VBA resources, possible macro or embedded object present
  • 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 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 No3756368.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1552
    • 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:1216
      • C:\Users\Admin\AppData\Roaming\odogwu98741.exe
        "C:\Users\Admin\AppData\Roaming\odogwu98741.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1692
        • C:\Users\Admin\AppData\Roaming\odogwu98741.exe
          "C:\Users\Admin\AppData\Roaming\odogwu98741.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1644

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Exploitation for Client Execution

    1
    T1203

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\odogwu98741.exe
      MD5

      9c0421b87aa0703d72fe9b405938eecc

      SHA1

      40c2016e003fc0c1268251aba63bbcffd7658280

      SHA256

      8b987ac35e194eb8c98666431ac30a66c4daae15e605679390dea2e72d9199eb

      SHA512

      fcf8a240df4de33c2515ee1f87d0bcfe0f01be36167686b15484a2a0b1e9ec281887c0589c673aace65bc113706a51f83beafbc496607c68be10bcf40c36024a

    • C:\Users\Admin\AppData\Roaming\odogwu98741.exe
      MD5

      9c0421b87aa0703d72fe9b405938eecc

      SHA1

      40c2016e003fc0c1268251aba63bbcffd7658280

      SHA256

      8b987ac35e194eb8c98666431ac30a66c4daae15e605679390dea2e72d9199eb

      SHA512

      fcf8a240df4de33c2515ee1f87d0bcfe0f01be36167686b15484a2a0b1e9ec281887c0589c673aace65bc113706a51f83beafbc496607c68be10bcf40c36024a

    • C:\Users\Admin\AppData\Roaming\odogwu98741.exe
      MD5

      9c0421b87aa0703d72fe9b405938eecc

      SHA1

      40c2016e003fc0c1268251aba63bbcffd7658280

      SHA256

      8b987ac35e194eb8c98666431ac30a66c4daae15e605679390dea2e72d9199eb

      SHA512

      fcf8a240df4de33c2515ee1f87d0bcfe0f01be36167686b15484a2a0b1e9ec281887c0589c673aace65bc113706a51f83beafbc496607c68be10bcf40c36024a

    • \Users\Admin\AppData\Roaming\odogwu98741.exe
      MD5

      9c0421b87aa0703d72fe9b405938eecc

      SHA1

      40c2016e003fc0c1268251aba63bbcffd7658280

      SHA256

      8b987ac35e194eb8c98666431ac30a66c4daae15e605679390dea2e72d9199eb

      SHA512

      fcf8a240df4de33c2515ee1f87d0bcfe0f01be36167686b15484a2a0b1e9ec281887c0589c673aace65bc113706a51f83beafbc496607c68be10bcf40c36024a

    • memory/1552-73-0x000007FEFC4A1000-0x000007FEFC4A3000-memory.dmp
      Filesize

      8KB

    • memory/1552-72-0x0000000000000000-mapping.dmp
    • memory/1644-77-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1644-78-0x000000000043762E-mapping.dmp
    • memory/1644-82-0x00000000022B0000-0x00000000022B1000-memory.dmp
      Filesize

      4KB

    • memory/1644-80-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/1692-75-0x00000000053B0000-0x000000000542A000-memory.dmp
      Filesize

      488KB

    • memory/1692-74-0x00000000004E0000-0x000000000050D000-memory.dmp
      Filesize

      180KB

    • memory/1692-66-0x0000000000000000-mapping.dmp
    • memory/1692-76-0x0000000000610000-0x0000000000649000-memory.dmp
      Filesize

      228KB

    • memory/1692-71-0x0000000004E90000-0x0000000004E91000-memory.dmp
      Filesize

      4KB

    • memory/1692-69-0x0000000000B60000-0x0000000000B61000-memory.dmp
      Filesize

      4KB

    • memory/1832-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1832-60-0x0000000072FA1000-0x0000000072FA4000-memory.dmp
      Filesize

      12KB

    • memory/1832-63-0x00000000762C1000-0x00000000762C3000-memory.dmp
      Filesize

      8KB

    • memory/1832-61-0x0000000070A21000-0x0000000070A23000-memory.dmp
      Filesize

      8KB

    • memory/1832-83-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB