Analysis

  • max time kernel
    92s
  • max time network
    115s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22-01-2021 14:44

General

  • Target

    VWHv25hG8krG0oN.exe

  • Size

    1.1MB

  • MD5

    7f82cfb27071df49570b6218613b886a

  • SHA1

    494f13242df0d1cfedada1dbf6ca8e47583bce5d

  • SHA256

    bc9bf3135e6e8e2bbe5f345843da0ac33848981d94cbd2dd540606c4397fac0b

  • SHA512

    47e499b9b645033348ec05ebdb43611bd439080d93ed69e4703b9d4a6f4651125e17a42b98738d6a11ca009fa57059724fde86c4e3bfb51c697c2c2dbb9c3fc3

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gammavilla.org
  • Port:
    587
  • Username:
    info@gammavilla.org
  • Password:
    county2018

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gammavilla.org
  • Port:
    587
  • Username:
    info@gammavilla.org
  • Password:
    county2018

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VWHv25hG8krG0oN.exe
    "C:\Users\Admin\AppData\Local\Temp\VWHv25hG8krG0oN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3888
    • C:\Users\Admin\AppData\Local\Temp\VWHv25hG8krG0oN.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1976

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\VWHv25hG8krG0oN.exe.log
    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/1976-12-0x0000000000400000-0x0000000000464000-memory.dmp
    Filesize

    400KB

  • memory/1976-22-0x0000000005FB0000-0x0000000005FB1000-memory.dmp
    Filesize

    4KB

  • memory/1976-21-0x0000000005F20000-0x0000000005F21000-memory.dmp
    Filesize

    4KB

  • memory/1976-20-0x0000000005910000-0x0000000005911000-memory.dmp
    Filesize

    4KB

  • memory/1976-15-0x0000000073A20000-0x000000007410E000-memory.dmp
    Filesize

    6.9MB

  • memory/1976-13-0x000000000045FE6E-mapping.dmp
  • memory/3888-7-0x0000000004CF0000-0x0000000004CF1000-memory.dmp
    Filesize

    4KB

  • memory/3888-11-0x00000000073C0000-0x00000000073C1000-memory.dmp
    Filesize

    4KB

  • memory/3888-10-0x0000000007250000-0x0000000007320000-memory.dmp
    Filesize

    832KB

  • memory/3888-9-0x0000000004F30000-0x0000000004F3E000-memory.dmp
    Filesize

    56KB

  • memory/3888-8-0x0000000004F20000-0x0000000004F21000-memory.dmp
    Filesize

    4KB

  • memory/3888-2-0x0000000073A20000-0x000000007410E000-memory.dmp
    Filesize

    6.9MB

  • memory/3888-6-0x0000000004D80000-0x0000000004D81000-memory.dmp
    Filesize

    4KB

  • memory/3888-5-0x0000000005280000-0x0000000005281000-memory.dmp
    Filesize

    4KB

  • memory/3888-3-0x0000000000390000-0x0000000000391000-memory.dmp
    Filesize

    4KB