Analysis

  • max time kernel
    91s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-12-2022 09:36

General

  • Target

    SecuriteInfo.com.Win32.TrojanX-gen.28957.4201.exe

  • Size

    845KB

  • MD5

    38a401260efb9031eb5d52a849eb005a

  • SHA1

    528a4a25bafbc76d05e946b3769d322d82967668

  • SHA256

    6f6ccd70e277efd92f43533ce35f403dad62d3dac77c9d502d756894552043f7

  • SHA512

    9e5d304576d23f2c8c0d88312ffa864890b16480b9c08510114f2d9e9c1afa8998f07489ab661cd32a7b4cbde0342452c3a46da6af7171308c355f8dc9aae336

  • SSDEEP

    12288:jEVq7GzISBk7Yj4klPT/ByL65yNeqlo2JKlSwx7IkNF:BqzIUkWnlb5yLMyIqC20Qw+mF

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.TrojanX-gen.28957.4201.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.TrojanX-gen.28957.4201.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CaFUFvehBRnOoh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE88.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1344
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.TrojanX-gen.28957.4201.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1376

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAE88.tmp
    Filesize

    1KB

    MD5

    745c8afb81b0fef44b6f02d097b9ff54

    SHA1

    fb0459c0085dffe8f1ea5f65549143f2c5600e9c

    SHA256

    36591aeb8754c42b65591ef2c21cf3af397feaedaa13c3d3e805385c776eeb40

    SHA512

    45c626f3d232e66067a27fb91d6bf5e223d4dcbcc80a00d8e7bb1198eacbdf08f7d17e9dfddf145fc098670cb4f45e978afe6948dc3a93734440be5e4071015d

  • memory/1344-59-0x0000000000000000-mapping.dmp
  • memory/1376-64-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1376-61-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1376-62-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1376-65-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1376-67-0x000000000043242E-mapping.dmp
  • memory/1376-66-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1376-69-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1376-71-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1388-57-0x0000000005380000-0x000000000541A000-memory.dmp
    Filesize

    616KB

  • memory/1388-58-0x0000000000A80000-0x0000000000AD0000-memory.dmp
    Filesize

    320KB

  • memory/1388-56-0x0000000000260000-0x0000000000272000-memory.dmp
    Filesize

    72KB

  • memory/1388-55-0x0000000075E11000-0x0000000075E13000-memory.dmp
    Filesize

    8KB

  • memory/1388-54-0x0000000000DC0000-0x0000000000E9A000-memory.dmp
    Filesize

    872KB