Overview

overview

10

Static

static

PO#209027_xlxs.exe

windows7_x64

10

PO#209027_xlxs.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    91s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 22:15

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General

  • Target

    PO#209027_xlxs.exe

  • Size

    618KB

  • MD5

    aa08c71f5b944ab021e404a6789c2e99

  • SHA1

    3f78a32757d3ed659bd8869d4f0d56c971e58912

  • SHA256

    9ffb458e6d120f6d42906c102ce49ecefbe4a937d6b605a4d3a1b3a7dc15e627

  • SHA512

    383bac0086bf39b68ffc0f286bfd397b1abd5531321ce030084a5090fbaee37955151ad740b9871fd5569732718f3caf04381c3bb73f08e2d38222955dac1310

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    blessing2020

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    blessing2020

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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO#209027_xlxs.exe
    "C:\Users\Admin\AppData\Local\Temp\PO#209027_xlxs.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:220
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ahCXFyIfWTcdb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2412.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4528
    • C:\Users\Admin\AppData\Local\Temp\PO#209027_xlxs.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1396

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

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO#209027_xlxs.exe.log
    Filesize

    599B

    MD5

    a56b1681d95f33a909d6f34c33f706fb

    SHA1

    e996e63f53e9041910f84a4246085c7e76d8ea37

    SHA256

    7d87bc567d369a8c708b33966c428845d44ce433d2a6445ca4ccf6449482b3a7

    SHA512

    f0d7998ccb520c7229f95ed26a714b07e6a87c16d097546751f7a0f61678b0abb3fbfcc0caa8eba66fa19c09ad659f89475f0f071f3b249bd1bee07a7cd665a2

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmp2412.tmp
    Filesize

    1KB

    MD5

    9766e24b55bbdf2fe1a6f835258ffbf3

    SHA1

    ad262efc1f6c23846fe54db9e7f739c80eca3a89

    SHA256

    812f24793aed41c066869aec500e380ae071df848017658f6d424f17eeff0e82

    SHA512

    e47bfa708a30a7ae7581d4e04d5fe9ab95792800406bdb209f1c5a4fb02531eeec591a71e6c3d25cea73ccd7cafe6ef41f613f52bbfda099d5269765bbfea49f

    Download Submit
  • memory/220-130-0x0000000000740000-0x00000000007E0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/220-131-0x00000000057E0000-0x0000000005D84000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/220-132-0x0000000005170000-0x0000000005202000-memory.dmp
    Filesize

    584KB

    Download
  • memory/220-133-0x0000000005E30000-0x0000000005ECC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/220-134-0x0000000006380000-0x00000000063E6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1396-137-0x0000000000000000-mapping.dmp
    Download
  • memory/1396-138-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1396-140-0x0000000006530000-0x0000000006580000-memory.dmp
    Filesize

    320KB

    Download
  • memory/1396-141-0x0000000006460000-0x000000000646A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/4528-135-0x0000000000000000-mapping.dmp
    Download