Overview

overview

10

Static

static

SKM20064.exe

windows7_x64

10

SKM20064.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    138s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:58

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General

  • Target

    SKM20064.exe

  • Size

    620KB

  • MD5

    bdb5b41a394905200a90edf2632d469c

  • SHA1

    9a5b37360aace8702a01877ded6a5bb7e0553996

  • SHA256

    d7d6711fecf46a82d89b1d0ccba6e4a3cf2e5016a24671abeda65f620b8006f0

  • SHA512

    ca3f710ad971e95210827790b4509613a3a83b4c987e3e45dc16ac8ae83d6bd1e3309ca4d9261cf9390031d72686dbb84e5effb9d34f8315b519b286908ed517

Score
10/10
agentteslacollectionkeyloggerspywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    mail.dogulumetal.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    DMaslak2950**

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.dogulumetal.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    DMaslak2950**

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • 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
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SKM20064.exe
    "C:\Users\Admin\AppData\Local\Temp\SKM20064.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4160
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XNpmrzTl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD031.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3764
    • C:\Users\Admin\AppData\Local\Temp\SKM20064.exe
      "C:\Users\Admin\AppData\Local\Temp\SKM20064.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4900

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

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SKM20064.exe.log
    Filesize

    1KB

    MD5

    17573558c4e714f606f997e5157afaac

    SHA1

    13e16e9415ceef429aaf124139671ebeca09ed23

    SHA256

    c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

    SHA512

    f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmpD031.tmp
    Filesize

    1KB

    MD5

    2f89cd2545d2b290c26507d6973dd9cf

    SHA1

    2356bd95bdd4864cde5c0d06b460b1c3ad3fe62a

    SHA256

    40393992958af429278726dab4cdebc53ced588182ab2f778e02abe8b5ae7480

    SHA512

    0c14985d511c070777d68e14d0d74d4ff3eb96868c927bdde637403c4e6a10249fa6c86f853b1a97e592bd89a877cb907de4c1c637d0e6d27ab8b1d3db6a8b23

    Download Submit
  • memory/3764-136-0x0000000000000000-mapping.dmp
    Download
  • memory/4160-133-0x0000000005200000-0x0000000005292000-memory.dmp
    Filesize

    584KB

    Download
  • memory/4160-134-0x00000000050E0000-0x00000000050EA000-memory.dmp
    Filesize

    40KB

    Download
  • memory/4160-135-0x00000000052A0000-0x00000000052F6000-memory.dmp
    Filesize

    344KB

    Download
  • memory/4160-130-0x0000000000690000-0x0000000000732000-memory.dmp
    Filesize

    648KB

    Download
  • memory/4160-132-0x00000000057B0000-0x0000000005D54000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/4160-131-0x0000000005160000-0x00000000051FC000-memory.dmp
    Filesize

    624KB

    Download
  • memory/4900-138-0x0000000000000000-mapping.dmp
    Download
  • memory/4900-139-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

    Download
  • memory/4900-141-0x00000000061D0000-0x0000000006236000-memory.dmp
    Filesize

    408KB

    Download
  • memory/4900-142-0x0000000006EF0000-0x0000000006F40000-memory.dmp
    Filesize

    320KB

    Download