Overview

overview

10

Static

static

Arrival No...02.exe

windows7_x64

10

Arrival No...02.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    131s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 12:24

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    Arrival Notice_XSS26005202.exe

  • Size

    524KB

  • MD5

    7dfc949e90244c874d44feef2576414e

  • SHA1

    c128697a45d29c99cc39f6e1a9f38843bb04c068

  • SHA256

    005a34d7e5981b1be3d985197bb47ee2a68245775db4f25a7afb9f9f3748004d

  • SHA512

    d5b82c85f1ff4b35f99bce6b0feb1b1deaeaabdb7accf4678310c59e7c73aefd022a1b9b8f0d9065b6204902f9fc9f7ae57223e9a6ba6790deb5e4f57f725029

Score
10/10
agentteslacollectioncoreentityevasionkeyloggerrezer0spywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.karmachalets.co.in
  • Port:
    587
  • Username:
    akshya@karmachalets.co.in
  • Password:
    Akshya@123

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    coreentity
  • AgentTesla Payload 6 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

    rezer0
  • 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Arrival Notice_XSS26005202.exe
    "C:\Users\Admin\AppData\Local\Temp\Arrival Notice_XSS26005202.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CSjNAXjD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF75.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2028
    • C:\Users\Admin\AppData\Local\Temp\Arrival Notice_XSS26005202.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:432
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1996

    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

    4
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    3
    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\Temp\tmpFF75.tmp
      Filesize

      1KB

      MD5

      4ebc66ea462203a7f8f0707c8f3355aa

      SHA1

      884212db5d39d91d2bee23441141234d2080d9a7

      SHA256

      0bc2879a24b9e9f28ea93f87f7520879658961959f4a5401a21ec617b7c6581c

      SHA512

      73dc45d020bdb1bef0f963617887b49946f228216d470e796429388599aa541798adfd463ba6eff6d92465662572c940a67744c49cee63301a7952e57973d0c6

      Download Submit
    • memory/432-64-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/432-66-0x000000000044C8DE-mapping.dmp
      Download
    • memory/432-70-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/432-68-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/432-65-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/432-60-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/432-61-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/432-63-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/1376-54-0x00000000000B0000-0x000000000013A000-memory.dmp
      Filesize

      552KB

      Download
    • memory/1376-55-0x0000000075361000-0x0000000075363000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1376-56-0x0000000001DF0000-0x0000000001DF8000-memory.dmp
      Filesize

      32KB

      Download
    • memory/1376-57-0x0000000004530000-0x0000000004588000-memory.dmp
      Filesize

      352KB

      Download
    • memory/1996-72-0x0000000000000000-mapping.dmp
      Download
    • memory/2028-58-0x0000000000000000-mapping.dmp
      Download