Analysis

  • max time kernel
    108s
  • max time network
    68s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    20-04-2021 14:45

General

  • Target

    SecuriteInfo.com.Trojan.Siggen13.10233.30629.5748.exe

  • Size

    34KB

  • MD5

    0389d0b86a7342d646fc52945033e0c3

  • SHA1

    6d1fa84447923f045673c8510269cc8679332322

  • SHA256

    2a39871fcfc1b15b312efc820839f57a21288c09be793ca1ddaf41d821ce3c01

  • SHA512

    5575d21a2a44d1b56fee70bade21c5e9bf0bab620afacc660f02c7f3980af538bb7164c1a845db47010b3e66adb51d9e03aa9f469b638d580e42e5cc371b6208

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.orienttech.com.qa
  • Port:
    587
  • Username:
    sales@orienttech.com.qa
  • Password:
    Op{^fLb9gN[!

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 14 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.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen13.10233.30629.5748.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen13.10233.30629.5748.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:864
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:640
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen13.10233.30629.5748.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Siggen13.10233.30629.5748.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1536

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/640-66-0x0000000000000000-mapping.dmp
  • memory/864-65-0x0000000000000000-mapping.dmp
  • memory/1348-60-0x0000000001120000-0x0000000001121000-memory.dmp
    Filesize

    4KB

  • memory/1348-62-0x00000000762C1000-0x00000000762C3000-memory.dmp
    Filesize

    8KB

  • memory/1348-63-0x0000000004C60000-0x0000000004C61000-memory.dmp
    Filesize

    4KB

  • memory/1348-64-0x0000000000590000-0x00000000005E4000-memory.dmp
    Filesize

    336KB

  • memory/1536-67-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1536-68-0x00000000004374DE-mapping.dmp
  • memory/1536-69-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1536-71-0x00000000004B0000-0x00000000004B1000-memory.dmp
    Filesize

    4KB

  • memory/1536-72-0x00000000004B1000-0x00000000004B2000-memory.dmp
    Filesize

    4KB