Overview

overview

10

Static

static

BL Draft-#...83.exe

windows7_x64

10

BL Draft-#...83.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    113s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:44

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General

  • Target

    BL Draft-#2020-39883.exe

  • Size

    610KB

  • MD5

    94bcc1cc168e1d90a15642e534596f4c

  • SHA1

    ac2c7309450982e68e9c7bfa31f30fc76981c8d1

  • SHA256

    7ca8232e7c1412239e7ae183a33a8546097b37a1ca2fd03d068472f6ad7021c6

  • SHA512

    8f8463d29da3a396e84d1751b53b18b9a51a42930eaeed3acf3d9e704a18d03c433d67ccd3064c2ba2745d0e4194b52f1af5da8ef943c592c580dc12c7c440d5

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Sages101*

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Sages101*

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BL Draft-#2020-39883.exe
    "C:\Users\Admin\AppData\Local\Temp\BL Draft-#2020-39883.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4728
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oEhlzkK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8C90.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3148
    • C:\Users\Admin\AppData\Local\Temp\BL Draft-#2020-39883.exe
      "{path}"
      2⤵
        PID:1420
      • C:\Users\Admin\AppData\Local\Temp\BL Draft-#2020-39883.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3904

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    5
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    4
    T1082

    Peripheral Device Discovery

    1
    T1120

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\BL Draft-#2020-39883.exe.log
      Filesize

      599B

      MD5

      a56b1681d95f33a909d6f34c33f706fb

      SHA1

      e996e63f53e9041910f84a4246085c7e76d8ea37

      SHA256

      7d87bc567d369a8c708b33966c428845d44ce433d2a6445ca4ccf6449482b3a7

      SHA512

      f0d7998ccb520c7229f95ed26a714b07e6a87c16d097546751f7a0f61678b0abb3fbfcc0caa8eba66fa19c09ad659f89475f0f071f3b249bd1bee07a7cd665a2

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\tmp8C90.tmp
      Filesize

      1KB

      MD5

      8a61183375186f5bcf674b237d61d85c

      SHA1

      5e2c509415849847b9fdccce38c951908dd51a70

      SHA256

      84aea3d5130442780f60f1cb3455bec3d780ff2522cc676c885fff8531cca95e

      SHA512

      69dafef2adf45937e4e33603011e6c99a275b3916f6a7cba7d8509c9f71b741f298e944bb41bd16c5aca8055282cb49d65871fd6459ae78143a995ad2e7ab60a

      Download Submit
    • memory/1420-137-0x0000000000000000-mapping.dmp
      Download
    • memory/3148-135-0x0000000000000000-mapping.dmp
      Download
    • memory/3904-139-0x0000000000400000-0x0000000000466000-memory.dmp
      Filesize

      408KB

      Download
    • memory/3904-138-0x0000000000000000-mapping.dmp
      Download
    • memory/3904-141-0x0000000006E90000-0x0000000006EE0000-memory.dmp
      Filesize

      320KB

      Download
    • memory/3904-142-0x0000000007160000-0x000000000716A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/4728-134-0x000000000BC00000-0x000000000BC66000-memory.dmp
      Filesize

      408KB

      Download
    • memory/4728-133-0x00000000062B0000-0x000000000634C000-memory.dmp
      Filesize

      624KB

      Download
    • memory/4728-132-0x0000000005650000-0x00000000056E2000-memory.dmp
      Filesize

      584KB

      Download
    • memory/4728-130-0x0000000000BC0000-0x0000000000C5E000-memory.dmp
      Filesize

      632KB

      Download
    • memory/4728-131-0x0000000005B60000-0x0000000006104000-memory.dmp
      Filesize

      5.6MB

      Download