Analysis

  • max time kernel
    148s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-04-2024 01:20

General

  • Target

    30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e.exe

  • Size

    20KB

  • MD5

    fa5fcb25b0a66ca07d9b960ea665609c

  • SHA1

    fad91599a42b00ee269c8c39f1311f1163f523e9

  • SHA256

    30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e

  • SHA512

    8ec80e6686c27c238dd9b5b4a2f33c585349857ce82c6a0553264350ad982ba6f276e82251c5d986211319b5ed231701929a67d39f5fee09a96f351c534aec10

  • SSDEEP

    384:S95MWCK6LPaPrEe/5cbrmUPNa26ForPkAHPLrJ6N8rmRh9chOJmwNHSBXWM64xTg:SyL/qONa26CPjvhBqD9cRWf41M+/xg

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.hypos-care.com
  • Port:
    587
  • Username:
    breakingbadse@hypos-care.com
  • Password:
    $zg$gUa2
  • Email To:
    breakingbadrc@hypos-care.com

Signatures

  • AgentTesla

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

  • Drops startup file 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e.exe
    "C:\Users\Admin\AppData\Local\Temp\30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4376
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e.exe' -Force
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1948
    • C:\Users\Admin\AppData\Local\Temp\30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e.exe
      "C:\Users\Admin\AppData\Local\Temp\30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1956

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\30793337658213fa17e05ad4b3e766409b7fc7e36c5eea3da0459be7ba703b3e.exe.log
    Filesize

    1KB

    MD5

    f94ae3835923d0ef7775b7fc0237c8f7

    SHA1

    da69a9e0f7c7dff2cbbac00ed3931721f7c42094

    SHA256

    3ba64bb4afe0c9d554eedbed6932fe4e1ff829b681c8221a3ef4b5e68ed4d9df

    SHA512

    9c7bb0b1a7f137c09b3849ba87fed7d6e2fea5fad2301db453a04aea2c7235ec6d11587fb97b8770df40ac3c139719e252a4fb84e600d991ee6ecaa9262203ff

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zs3o3atv.0nu.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1948-24-0x0000000005D70000-0x00000000060C4000-memory.dmp
    Filesize

    3.3MB

  • memory/1948-33-0x0000000007210000-0x00000000072A6000-memory.dmp
    Filesize

    600KB

  • memory/1948-25-0x0000000006260000-0x000000000627E000-memory.dmp
    Filesize

    120KB

  • memory/1948-39-0x00000000743F0000-0x0000000074BA0000-memory.dmp
    Filesize

    7.7MB

  • memory/1948-35-0x00000000067C0000-0x00000000067E2000-memory.dmp
    Filesize

    136KB

  • memory/1948-34-0x0000000006770000-0x000000000678A000-memory.dmp
    Filesize

    104KB

  • memory/1948-8-0x0000000002940000-0x0000000002976000-memory.dmp
    Filesize

    216KB

  • memory/1948-9-0x00000000743F0000-0x0000000074BA0000-memory.dmp
    Filesize

    7.7MB

  • memory/1948-12-0x0000000004E80000-0x0000000004E90000-memory.dmp
    Filesize

    64KB

  • memory/1948-11-0x00000000054C0000-0x0000000005AE8000-memory.dmp
    Filesize

    6.2MB

  • memory/1948-10-0x0000000004E80000-0x0000000004E90000-memory.dmp
    Filesize

    64KB

  • memory/1948-13-0x0000000005AF0000-0x0000000005B12000-memory.dmp
    Filesize

    136KB

  • memory/1948-19-0x0000000005B90000-0x0000000005BF6000-memory.dmp
    Filesize

    408KB

  • memory/1948-26-0x0000000006290000-0x00000000062DC000-memory.dmp
    Filesize

    304KB

  • memory/1956-40-0x0000000006080000-0x00000000060D0000-memory.dmp
    Filesize

    320KB

  • memory/1956-43-0x0000000005240000-0x0000000005250000-memory.dmp
    Filesize

    64KB

  • memory/1956-42-0x00000000743F0000-0x0000000074BA0000-memory.dmp
    Filesize

    7.7MB

  • memory/1956-41-0x0000000006110000-0x000000000611A000-memory.dmp
    Filesize

    40KB

  • memory/1956-27-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/1956-30-0x00000000743F0000-0x0000000074BA0000-memory.dmp
    Filesize

    7.7MB

  • memory/1956-32-0x0000000005240000-0x0000000005250000-memory.dmp
    Filesize

    64KB

  • memory/4376-7-0x0000000006CF0000-0x0000000006D56000-memory.dmp
    Filesize

    408KB

  • memory/4376-1-0x00000000743F0000-0x0000000074BA0000-memory.dmp
    Filesize

    7.7MB

  • memory/4376-31-0x00000000743F0000-0x0000000074BA0000-memory.dmp
    Filesize

    7.7MB

  • memory/4376-6-0x0000000006C50000-0x0000000006CEC000-memory.dmp
    Filesize

    624KB

  • memory/4376-5-0x0000000006A70000-0x0000000006AB6000-memory.dmp
    Filesize

    280KB

  • memory/4376-4-0x0000000005730000-0x0000000005740000-memory.dmp
    Filesize

    64KB

  • memory/4376-3-0x00000000055F0000-0x0000000005682000-memory.dmp
    Filesize

    584KB

  • memory/4376-2-0x0000000005D00000-0x00000000062A4000-memory.dmp
    Filesize

    5.6MB

  • memory/4376-0-0x0000000000C00000-0x0000000000C0C000-memory.dmp
    Filesize

    48KB