Analysis

  • max time kernel
    121s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2024 01:05

General

  • Target

    ec06302a54b3130a87c2d018b89c422e54f2b9c3957ea3d5b8dcebcc4f32e5d1.exe

  • Size

    774KB

  • MD5

    5f1ddff39c01f97878dc4d7d49d1f71d

  • SHA1

    5288bcdbd5eb69394177eb7fdead46b60d282838

  • SHA256

    ec06302a54b3130a87c2d018b89c422e54f2b9c3957ea3d5b8dcebcc4f32e5d1

  • SHA512

    a32759cefdeb87e6eca2b1823486b12c452eaf2dd1ff85eb6cd326d190fc9a9806b6398208198033cb04f7c4c52ff1090b29a4ddd491ec4a597ae49efbdd9024

  • SSDEEP

    12288:yDspRsBv1+jMsbSQIP7Ew1XaXBaBHY79prx4B3PPehHO5aIxST0V:1pRsCjpbfIP72EcFy3335bxS

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec06302a54b3130a87c2d018b89c422e54f2b9c3957ea3d5b8dcebcc4f32e5d1.exe
    "C:\Users\Admin\AppData\Local\Temp\ec06302a54b3130a87c2d018b89c422e54f2b9c3957ea3d5b8dcebcc4f32e5d1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ec06302a54b3130a87c2d018b89c422e54f2b9c3957ea3d5b8dcebcc4f32e5d1.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2560
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rbWIxZEHFR.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2668
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rbWIxZEHFR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B91.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2696
    • C:\Users\Admin\AppData\Local\Temp\ec06302a54b3130a87c2d018b89c422e54f2b9c3957ea3d5b8dcebcc4f32e5d1.exe
      "C:\Users\Admin\AppData\Local\Temp\ec06302a54b3130a87c2d018b89c422e54f2b9c3957ea3d5b8dcebcc4f32e5d1.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2684

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4B91.tmp
    Filesize

    1KB

    MD5

    78de02000b1d326291febe0ebdc4f084

    SHA1

    fc5897a06ee99092526a50ebf774daa435812a4c

    SHA256

    e671707a9f3d674020868b622e065be73f8b2cdd92b8a3783ce7f3b3f5103644

    SHA512

    705c944d7e1a096feed6d3935ae62428af8fea5f0aea8d645d63688f509ae16a8c71d11c797a1670ce528283f36fd36c932f30147bf7b7e2fb407039b91df023

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\EXX4VB2WVCJSRGW3OZ09.temp
    Filesize

    7KB

    MD5

    fc99282b1fcdbc57191ac6a4f3f8fa80

    SHA1

    32c2944b10b675334b8297bdf4fed8aac8858a22

    SHA256

    7742902f749a39341366b93635b59b0fe48a9f962c68a04f59c9ffaed60ca477

    SHA512

    3797f66b60745ec8e35b67769c266ca903851f49c4cb63e0882020d988407756e1cd7e8f0fb7a43456727e473c7fb1f40e8f5e895d8e13c8427b42414861f1a1

  • memory/2560-39-0x0000000002A20000-0x0000000002A60000-memory.dmp
    Filesize

    256KB

  • memory/2560-41-0x000000006F9C0000-0x000000006FF6B000-memory.dmp
    Filesize

    5.7MB

  • memory/2560-36-0x0000000002A20000-0x0000000002A60000-memory.dmp
    Filesize

    256KB

  • memory/2560-31-0x000000006F9C0000-0x000000006FF6B000-memory.dmp
    Filesize

    5.7MB

  • memory/2560-35-0x000000006F9C0000-0x000000006FF6B000-memory.dmp
    Filesize

    5.7MB

  • memory/2560-34-0x0000000002A20000-0x0000000002A60000-memory.dmp
    Filesize

    256KB

  • memory/2668-37-0x0000000002AC0000-0x0000000002B00000-memory.dmp
    Filesize

    256KB

  • memory/2668-33-0x0000000002AC0000-0x0000000002B00000-memory.dmp
    Filesize

    256KB

  • memory/2668-40-0x000000006F9C0000-0x000000006FF6B000-memory.dmp
    Filesize

    5.7MB

  • memory/2668-32-0x000000006F9C0000-0x000000006FF6B000-memory.dmp
    Filesize

    5.7MB

  • memory/2668-38-0x000000006F9C0000-0x000000006FF6B000-memory.dmp
    Filesize

    5.7MB

  • memory/2684-19-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2684-24-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2684-28-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2684-57-0x0000000004850000-0x0000000004890000-memory.dmp
    Filesize

    256KB

  • memory/2684-56-0x0000000074B40000-0x000000007522E000-memory.dmp
    Filesize

    6.9MB

  • memory/2684-30-0x0000000074B40000-0x000000007522E000-memory.dmp
    Filesize

    6.9MB

  • memory/2684-20-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2684-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2684-18-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2684-26-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2684-21-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2968-3-0x0000000000660000-0x000000000067A000-memory.dmp
    Filesize

    104KB

  • memory/2968-0-0x0000000000040000-0x0000000000106000-memory.dmp
    Filesize

    792KB

  • memory/2968-1-0x0000000074B40000-0x000000007522E000-memory.dmp
    Filesize

    6.9MB

  • memory/2968-29-0x0000000074B40000-0x000000007522E000-memory.dmp
    Filesize

    6.9MB

  • memory/2968-5-0x00000000050E0000-0x0000000005162000-memory.dmp
    Filesize

    520KB

  • memory/2968-2-0x0000000004D40000-0x0000000004D80000-memory.dmp
    Filesize

    256KB

  • memory/2968-4-0x0000000000690000-0x000000000069C000-memory.dmp
    Filesize

    48KB