Analysis

  • max time kernel
    136s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    19-10-2021 09:55

General

  • Target

    MV YIN SHUN - TONG LI SHIPPING.exe

  • Size

    770KB

  • MD5

    545eaa55c962df648708bb0bb01bcb28

  • SHA1

    39e0c699f9bd668dc65561aef01451deeb41b073

  • SHA256

    138e666baba119aed949d7064ded4f2ddafaa85e95b09bbd5c4ed7d2b77ac9ef

  • SHA512

    4892171284b009dc58a0ea5a781006e52c1dc729e924f386749336b9e56880ecdf6f67e43bee9c8f26b345cfcaab4b53305cd78f33a04d1b3d6016db4a2684cb

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.penavico--cz.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Fq$L%J((!6

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MV YIN SHUN - TONG LI SHIPPING.exe
    "C:\Users\Admin\AppData\Local\Temp\MV YIN SHUN - TONG LI SHIPPING.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Users\Admin\AppData\Local\Temp\MV YIN SHUN - TONG LI SHIPPING.exe
      "C:\Users\Admin\AppData\Local\Temp\MV YIN SHUN - TONG LI SHIPPING.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2300

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1840-115-0x0000000001190000-0x0000000001191000-memory.dmp
    Filesize

    4KB

  • memory/1840-117-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
    Filesize

    4KB

  • memory/1840-118-0x0000000004A60000-0x0000000004A61000-memory.dmp
    Filesize

    4KB

  • memory/1840-119-0x0000000004DC0000-0x0000000004DC1000-memory.dmp
    Filesize

    4KB

  • memory/1840-120-0x0000000000940000-0x0000000000941000-memory.dmp
    Filesize

    4KB

  • memory/2300-121-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2300-122-0x0000000000436A8E-mapping.dmp
  • memory/2300-126-0x0000000004EB0000-0x0000000004EB1000-memory.dmp
    Filesize

    4KB

  • memory/2300-127-0x0000000004D30000-0x000000000522E000-memory.dmp
    Filesize

    5.0MB

  • memory/2300-128-0x0000000005150000-0x0000000005151000-memory.dmp
    Filesize

    4KB

  • memory/2300-129-0x0000000005A20000-0x0000000005A21000-memory.dmp
    Filesize

    4KB