Analysis

  • max time kernel
    125s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    01-12-2021 07:53

General

  • Target

    PO2018975601.exe

  • Size

    482KB

  • MD5

    c2824b16cd452455bdc2170a28c1307c

  • SHA1

    ad49cd0bc221f164ec9abf86668986d1405b9e63

  • SHA256

    75258985f5c24ce6f71734acfaaffce29c0a3c7826b22fe25f1debf21180c8e1

  • SHA512

    100072707f4ba9f409015ebcc5010fd160ee6f5be300689c079c8035af7193bdd35ebe9a9c1786a519db9667c1f826816d45da3e8da6e158884230cfdd61df5e

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.modularelect.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    successman12@

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\PO2018975601.exe
    "C:\Users\Admin\AppData\Local\Temp\PO2018975601.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Users\Admin\AppData\Local\Temp\PO2018975601.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1828

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO2018975601.exe.log

    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/1828-129-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1828-141-0x0000000005550000-0x0000000005A4E000-memory.dmp

    Filesize

    5.0MB

  • memory/1828-138-0x00000000061C0000-0x00000000061C1000-memory.dmp

    Filesize

    4KB

  • memory/1828-137-0x0000000005670000-0x0000000005671000-memory.dmp

    Filesize

    4KB

  • memory/1828-136-0x0000000005550000-0x0000000005A4E000-memory.dmp

    Filesize

    5.0MB

  • memory/1828-130-0x00000000004375FE-mapping.dmp

  • memory/3716-123-0x0000000005440000-0x0000000005441000-memory.dmp

    Filesize

    4KB

  • memory/3716-127-0x0000000007E00000-0x0000000007E75000-memory.dmp

    Filesize

    468KB

  • memory/3716-128-0x000000000A390000-0x000000000A3C8000-memory.dmp

    Filesize

    224KB

  • memory/3716-126-0x00000000057A0000-0x00000000057A5000-memory.dmp

    Filesize

    20KB

  • memory/3716-125-0x0000000005530000-0x0000000005A2E000-memory.dmp

    Filesize

    5.0MB

  • memory/3716-124-0x0000000005730000-0x0000000005731000-memory.dmp

    Filesize

    4KB

  • memory/3716-118-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

    Filesize

    4KB

  • memory/3716-122-0x00000000055D0000-0x00000000055D1000-memory.dmp

    Filesize

    4KB

  • memory/3716-121-0x0000000005A30000-0x0000000005A31000-memory.dmp

    Filesize

    4KB

  • memory/3716-120-0x0000000005490000-0x0000000005491000-memory.dmp

    Filesize

    4KB