Analysis

  • max time kernel
    152s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:12

General

  • Target

    quotation.pdf.exe

  • Size

    658KB

  • MD5

    cf3ee23fbd9742d957d1b78246984bb0

  • SHA1

    82d3ad19783376f807ca805a0716e9171e5c238f

  • SHA256

    5f12c5c95aa1f6afafd971546ec6f4661f1abfa76bb2082e621b841cf24cd4b9

  • SHA512

    3f6dcd68c4b274ff9b5373e8944d5c16cf0fcd88e821f734a795a60007a577facee2708a5a480d36f39a4a58dd52d426297cc8293ed4b8086b26f5263b5ef78b

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kingmoney12345

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kingmoney12345

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:868
    • C:\Users\Admin\AppData\Local\Temp\quotation.pdf.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4252

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

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\quotation.pdf.exe.log
    Filesize

    667B

    MD5

    fad44290d2f569240416a287677a6b34

    SHA1

    0799266664e37852987cc24398f9a70c7e56742b

    SHA256

    e955c99499359471526e95c22a084d1578997c39ecab988badf6798cfbd995b0

    SHA512

    ee4136ac147d41646368eeb16390598c1da2b9e3bb8331b43062a72e4ad1d05eec56dcc727f9b5b447756c3edc855b08ef0c241073a5f88e749714f2beb98bc3

  • memory/868-130-0x0000000075400000-0x00000000759B1000-memory.dmp
    Filesize

    5.7MB

  • memory/4252-131-0x0000000000000000-mapping.dmp
  • memory/4252-132-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/4252-134-0x0000000075400000-0x00000000759B1000-memory.dmp
    Filesize

    5.7MB