Analysis

  • max time kernel
    135s
  • max time network
    71s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    25-07-2021 23:28

General

  • Target

    New order 11244332.pdf.exe

  • Size

    480KB

  • MD5

    db7c4d333bcd92011b410f97ef60924c

  • SHA1

    7281874a20339ad2553f443ad1dc607f91c87462

  • SHA256

    bad2fa4f30cf24cd6c0455105a2780cb1ffd3a0efd3714a99fc9eb6b2d295c72

  • SHA512

    ea08642286f41eba4600e03fbf60b9d8a6479e713ef69a197d331fef0e5654f50965681d852d81669c6a437c3eb8fc3a472719fd62b0e0fa0f2cad64d6457f83

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    clintongodgracelog@vivaldi.net
  • Password:
    858540506070

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New order 11244332.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\New order 11244332.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Users\Admin\AppData\Local\Temp\New order 11244332.pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2544

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\New order 11244332.pdf.exe.log
    MD5

    f63538e8f46716277d99afa59b82627f

    SHA1

    ac748880c856cc6269169df63ce0a3f5f2b3baba

    SHA256

    6074019b388daccdfd1267e5366c9d6fbf84abc98800313d44d66a6534a4cbed

    SHA512

    cb2e56c260d98371d86aa3c9eeda86da0ad47ebcad73050feb32cb6c3c4c446386caca95f948757c54d7921e16e8450aa960bda89626cdd153462a66ba3c2d5d

  • memory/652-119-0x0000000004C80000-0x0000000004C81000-memory.dmp
    Filesize

    4KB

  • memory/652-122-0x0000000008BA0000-0x0000000008BA1000-memory.dmp
    Filesize

    4KB

  • memory/652-118-0x0000000004C00000-0x0000000004C92000-memory.dmp
    Filesize

    584KB

  • memory/652-114-0x00000000003D0000-0x00000000003D1000-memory.dmp
    Filesize

    4KB

  • memory/652-124-0x0000000006950000-0x0000000006988000-memory.dmp
    Filesize

    224KB

  • memory/652-121-0x0000000008AF0000-0x0000000008AF2000-memory.dmp
    Filesize

    8KB

  • memory/652-117-0x0000000004CA0000-0x0000000004CA1000-memory.dmp
    Filesize

    4KB

  • memory/652-123-0x0000000006A20000-0x0000000006A9E000-memory.dmp
    Filesize

    504KB

  • memory/652-120-0x0000000008FB0000-0x0000000008FB1000-memory.dmp
    Filesize

    4KB

  • memory/652-116-0x00000000052D0000-0x00000000052D1000-memory.dmp
    Filesize

    4KB

  • memory/2544-126-0x000000000043761E-mapping.dmp
  • memory/2544-125-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2544-132-0x0000000004E30000-0x000000000532E000-memory.dmp
    Filesize

    5.0MB

  • memory/2544-133-0x0000000004F60000-0x0000000004F61000-memory.dmp
    Filesize

    4KB

  • memory/2544-134-0x0000000005AA0000-0x0000000005AA1000-memory.dmp
    Filesize

    4KB

  • memory/2544-137-0x0000000004E30000-0x000000000532E000-memory.dmp
    Filesize

    5.0MB