Analysis

  • max time kernel
    110s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    07/06/2023, 16:57

General

  • Target

    test.exe

  • Size

    734KB

  • MD5

    005c45c7069070fe6ad1f112a16f135c

  • SHA1

    a023833da6bc0ecbaa674be65bdfd75b0df7b9bb

  • SHA256

    fd987d623939a8b69f25a2b8350fb6e76a51e77545add40658fc60f00950d625

  • SHA512

    fef81ef730e17f1a71f47c2c75be4f25c31a66f2d372fc4a249546c0234c37034627d070412c0a62c492bdfb9a0d0930e1e9ad9489d6c79642c65d28c8dfeb9e

  • SSDEEP

    12288:5XiGDGvPSL84r6h7okw3DmKyhouWMNR5ZcnFzFJ+RsuDv5YQVqsjKx:5XvDGCLbr6h73klHuZ2nFf+RJvuQF4

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5954474519:AAEGnfW1mRvGRxq-zIAvwJfpKEbhLLiqVaM/

Signatures

  • AgentTesla

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

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\test.exe
    "C:\Users\Admin\AppData\Local\Temp\test.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      -arguments
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2008
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 216
      2⤵
      • Program crash
      PID:2016
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3382CD04-BB0B-42D9-A59F-72AF2CEA195D} S-1-5-21-3948302646-268491222-1934009652-1000:KXZDHPUW\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1296
    • C:\Users\Admin\AppData\Local\Temp\shvbbqiwf.exe
      C:\Users\Admin\AppData\Local\Temp\shvbbqiwf.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1620
      • C:\Users\Admin\AppData\Local\Temp\shvbbqiwf.exe
        "C:\Users\Admin\AppData\Local\Temp\shvbbqiwf.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1056

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\shvbbqiwf.exe

    Filesize

    791KB

    MD5

    08be52e59bce030aad246ddf3fbb0c26

    SHA1

    2620e4873b25739c869839698eadbcefa215294a

    SHA256

    2ad182e3e7b18f1d0f0ef1c3c771b6b8112cb25a0ad5cd2f4e53462addb6bb4c

    SHA512

    fb01d4e42f7591ee25df31c35e162b8026450f497423676c518f7e983497f2675d36b4a4f7b5da25769c759ddaf1ed0d8c5d9f5d2afdf1c054ae5fec62513a04

  • C:\Users\Admin\AppData\Local\Temp\shvbbqiwf.exe

    Filesize

    791KB

    MD5

    08be52e59bce030aad246ddf3fbb0c26

    SHA1

    2620e4873b25739c869839698eadbcefa215294a

    SHA256

    2ad182e3e7b18f1d0f0ef1c3c771b6b8112cb25a0ad5cd2f4e53462addb6bb4c

    SHA512

    fb01d4e42f7591ee25df31c35e162b8026450f497423676c518f7e983497f2675d36b4a4f7b5da25769c759ddaf1ed0d8c5d9f5d2afdf1c054ae5fec62513a04

  • C:\Users\Admin\AppData\Local\Temp\shvbbqiwf.exe

    Filesize

    791KB

    MD5

    08be52e59bce030aad246ddf3fbb0c26

    SHA1

    2620e4873b25739c869839698eadbcefa215294a

    SHA256

    2ad182e3e7b18f1d0f0ef1c3c771b6b8112cb25a0ad5cd2f4e53462addb6bb4c

    SHA512

    fb01d4e42f7591ee25df31c35e162b8026450f497423676c518f7e983497f2675d36b4a4f7b5da25769c759ddaf1ed0d8c5d9f5d2afdf1c054ae5fec62513a04

  • \Users\Admin\AppData\Local\Temp\shvbbqiwf.exe

    Filesize

    791KB

    MD5

    08be52e59bce030aad246ddf3fbb0c26

    SHA1

    2620e4873b25739c869839698eadbcefa215294a

    SHA256

    2ad182e3e7b18f1d0f0ef1c3c771b6b8112cb25a0ad5cd2f4e53462addb6bb4c

    SHA512

    fb01d4e42f7591ee25df31c35e162b8026450f497423676c518f7e983497f2675d36b4a4f7b5da25769c759ddaf1ed0d8c5d9f5d2afdf1c054ae5fec62513a04

  • memory/1056-2410-0x0000000005100000-0x0000000005140000-memory.dmp

    Filesize

    256KB

  • memory/1056-2409-0x0000000005100000-0x0000000005140000-memory.dmp

    Filesize

    256KB

  • memory/1056-2408-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1620-2395-0x0000000004B50000-0x0000000004BA0000-memory.dmp

    Filesize

    320KB

  • memory/1620-2393-0x0000000000470000-0x000000000047C000-memory.dmp

    Filesize

    48KB

  • memory/1620-2392-0x0000000000330000-0x0000000000370000-memory.dmp

    Filesize

    256KB

  • memory/1620-2391-0x0000000000460000-0x0000000000472000-memory.dmp

    Filesize

    72KB

  • memory/1620-2390-0x0000000000330000-0x0000000000370000-memory.dmp

    Filesize

    256KB

  • memory/1620-2389-0x0000000000E30000-0x0000000000EFC000-memory.dmp

    Filesize

    816KB

  • memory/1620-2394-0x0000000005770000-0x00000000057F8000-memory.dmp

    Filesize

    544KB

  • memory/2008-78-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-118-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-84-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-86-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-88-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-90-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-92-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-94-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-98-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-96-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-100-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-102-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-104-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-106-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-108-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-110-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-112-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-114-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-116-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-82-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-120-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-2381-0x0000000004800000-0x0000000004856000-memory.dmp

    Filesize

    344KB

  • memory/2008-2382-0x0000000000540000-0x000000000058C000-memory.dmp

    Filesize

    304KB

  • memory/2008-2383-0x0000000004890000-0x00000000048D0000-memory.dmp

    Filesize

    256KB

  • memory/2008-2384-0x0000000004DF0000-0x0000000004E44000-memory.dmp

    Filesize

    336KB

  • memory/2008-80-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-56-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/2008-76-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-74-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-72-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-70-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-68-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-67-0x0000000004710000-0x00000000047FC000-memory.dmp

    Filesize

    944KB

  • memory/2008-66-0x0000000004710000-0x0000000004802000-memory.dmp

    Filesize

    968KB

  • memory/2008-65-0x0000000004890000-0x00000000048D0000-memory.dmp

    Filesize

    256KB

  • memory/2008-64-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/2008-63-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

  • memory/2008-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2008-57-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB