Analysis

  • max time kernel
    142s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    21-01-2022 18:34

General

  • Target

    vbc.exe

  • Size

    193KB

  • MD5

    b2b0d367777c10ea84ddd200e494fafb

  • SHA1

    1c263867f142e10910d6c25274ba2b45115becee

  • SHA256

    45e4a0928b9a955dd791cee03ff5157f2eb31d465ba24deb1d40f102f54a3e4a

  • SHA512

    e4cabfefa77a9ff1686fd717c8b045d24e6167ea421e3e2a4ec5977491592711e9defc9d5ca4925f32c8449bd9428eb6684957a7eee28227e4d3431674b81ad1

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5013020608:AAFu_btAZRcQ9V-SvEIxL9rCbb_x1A-9IJo/sendDocument

Extracted

Family

lokibot

C2

http://tootoo.ga/webxpo/gate.php

http://kbfvzoboss.bid/alien/fre.php

http://alphastand.trade/alien/fre.php

http://alphastand.win/alien/fre.php

http://alphastand.top/alien/fre.php

Signatures

  • AgentTesla

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

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Lokibot

    Lokibot is a Password and CryptoCoin Wallet Stealer.

  • AgentTesla Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Checks QEMU agent file 2 TTPs 4 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 3 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vbc.exe
    "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
    1⤵
    • Checks QEMU agent file
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:832
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
      "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
      2⤵
      • Checks QEMU agent file
      • Loads dropped DLL
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:792
      • C:\Users\Admin\AppData\Roaming\Sknnestes9.exe
        "C:\Users\Admin\AppData\Roaming\Sknnestes9.exe"
        3⤵
        • Executes dropped EXE
        • Checks QEMU agent file
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1972
        • C:\Users\Admin\AppData\Roaming\Sknnestes9.exe
          "C:\Users\Admin\AppData\Roaming\Sknnestes9.exe"
          4⤵
          • Checks QEMU agent file
          • Loads dropped DLL
          • Accesses Microsoft Outlook profiles
          • Suspicious use of NtCreateThreadExHideFromDebugger
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of AdjustPrivilegeToken
          PID:676

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Defense Evasion

Scripting

1
T1064

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\oWd6XQZBhARVHwO1QZW240
    MD5

    f97264a5d29376aadd091cb8880bf4e4

    SHA1

    1641d112c7f0f31ccff1b9ccab6222d245642e27

    SHA256

    5bd919690a6400c82da06969c65988a748945cbf3fd6f4ed803884ba516e4bd2

    SHA512

    6badc1c7bd2b5dad04ff809f0ea6e3a590a777fcaef4750e873bdaea24afd9ce4cc5e1190811632c12f9d6a5cfd67e0b449060fd1811bd55e8863f3a5620b0e2

  • C:\Users\Admin\AppData\Roaming\Sknnestes9.exe
    MD5

    7e8effc999bf0c37467eb143ab1a693b

    SHA1

    3c25794cd6f6693ccd2b29e3b8e89cbbde4d3fa9

    SHA256

    a7dcf8734b58bf1c06d4de3c2478d95087c57a411466f760701050b612173cbb

    SHA512

    2f37902c0249f0e70fbe439f43850712bd2a3b7fafc4fa0d0bccbe69f906aa4994ad68298c05dd896a87916f29279c8b5372c8b3f9d968ac4a718a9f376790d7

  • C:\Users\Admin\AppData\Roaming\Sknnestes9.exe
    MD5

    7e8effc999bf0c37467eb143ab1a693b

    SHA1

    3c25794cd6f6693ccd2b29e3b8e89cbbde4d3fa9

    SHA256

    a7dcf8734b58bf1c06d4de3c2478d95087c57a411466f760701050b612173cbb

    SHA512

    2f37902c0249f0e70fbe439f43850712bd2a3b7fafc4fa0d0bccbe69f906aa4994ad68298c05dd896a87916f29279c8b5372c8b3f9d968ac4a718a9f376790d7

  • C:\Users\Admin\AppData\Roaming\Sknnestes9.exe
    MD5

    7e8effc999bf0c37467eb143ab1a693b

    SHA1

    3c25794cd6f6693ccd2b29e3b8e89cbbde4d3fa9

    SHA256

    a7dcf8734b58bf1c06d4de3c2478d95087c57a411466f760701050b612173cbb

    SHA512

    2f37902c0249f0e70fbe439f43850712bd2a3b7fafc4fa0d0bccbe69f906aa4994ad68298c05dd896a87916f29279c8b5372c8b3f9d968ac4a718a9f376790d7

  • \Users\Admin\AppData\Roaming\Sknnestes9.exe
    MD5

    7e8effc999bf0c37467eb143ab1a693b

    SHA1

    3c25794cd6f6693ccd2b29e3b8e89cbbde4d3fa9

    SHA256

    a7dcf8734b58bf1c06d4de3c2478d95087c57a411466f760701050b612173cbb

    SHA512

    2f37902c0249f0e70fbe439f43850712bd2a3b7fafc4fa0d0bccbe69f906aa4994ad68298c05dd896a87916f29279c8b5372c8b3f9d968ac4a718a9f376790d7

  • \Users\Admin\AppData\Roaming\Sknnestes9.exe
    MD5

    7e8effc999bf0c37467eb143ab1a693b

    SHA1

    3c25794cd6f6693ccd2b29e3b8e89cbbde4d3fa9

    SHA256

    a7dcf8734b58bf1c06d4de3c2478d95087c57a411466f760701050b612173cbb

    SHA512

    2f37902c0249f0e70fbe439f43850712bd2a3b7fafc4fa0d0bccbe69f906aa4994ad68298c05dd896a87916f29279c8b5372c8b3f9d968ac4a718a9f376790d7

  • memory/676-90-0x0000000000400000-0x0000000001462000-memory.dmp
    Filesize

    16.4MB

  • memory/676-85-0x00000000001B0000-0x0000000000380000-memory.dmp
    Filesize

    1.8MB

  • memory/676-84-0x0000000000400000-0x0000000001462000-memory.dmp
    Filesize

    16.4MB

  • memory/676-89-0x00000000777F0000-0x0000000077970000-memory.dmp
    Filesize

    1.5MB

  • memory/676-88-0x0000000077610000-0x00000000777B9000-memory.dmp
    Filesize

    1.7MB

  • memory/792-65-0x0000000077610000-0x00000000777B9000-memory.dmp
    Filesize

    1.7MB

  • memory/792-75-0x000000001FEB0000-0x000000001FEB1000-memory.dmp
    Filesize

    4KB

  • memory/792-91-0x000000001FEB1000-0x000000001FEB2000-memory.dmp
    Filesize

    4KB

  • memory/792-73-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/792-72-0x0000000000400000-0x000000000069B000-memory.dmp
    Filesize

    2.6MB

  • memory/792-62-0x0000000000230000-0x0000000000330000-memory.dmp
    Filesize

    1024KB

  • memory/832-56-0x0000000000310000-0x0000000000337000-memory.dmp
    Filesize

    156KB

  • memory/832-60-0x0000000075891000-0x0000000075893000-memory.dmp
    Filesize

    8KB

  • memory/832-59-0x00000000777F0000-0x0000000077970000-memory.dmp
    Filesize

    1.5MB

  • memory/832-58-0x0000000077610000-0x00000000777B9000-memory.dmp
    Filesize

    1.7MB

  • memory/1972-74-0x0000000000250000-0x0000000000277000-memory.dmp
    Filesize

    156KB

  • memory/1972-83-0x00000000777F0000-0x0000000077970000-memory.dmp
    Filesize

    1.5MB

  • memory/1972-79-0x00000000777F0000-0x0000000077970000-memory.dmp
    Filesize

    1.5MB

  • memory/1972-77-0x0000000077610000-0x00000000777B9000-memory.dmp
    Filesize

    1.7MB