Overview

overview

10

Static

static

3

1669d57e8c...0b.exe

windows7-x64

10

1669d57e8c...0b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1669d57e8c83d0666c86fafcd484a5fd158c995a58ad9a6855c56d849c00b40b.exe

  • Size

    2.2MB

  • Sample

    240630-beek8s1dkd

  • MD5

    31cbb0ad4fbff526978c68212a36fb90

  • SHA1

    d5cbdd8f03037a73dd40c0819498c969ae5b9102

  • SHA256

    1669d57e8c83d0666c86fafcd484a5fd158c995a58ad9a6855c56d849c00b40b

  • SHA512

    3f8e80aa86d486eacf4336b6a0a8f9c997de33a7ae1da5a1637e99fc168e0c4c8c1a9324b3c9bb69ce74d3529a881931234f45764d8f46810d820fb5629414a5

  • SSDEEP

    49152:eF50a6aPVOFMx3SmroCZscivbS6mqxEWoKmqZJffp3vSsqPUCeaw1GANOmJA:croA7P/YJ

Score
10/10
agentteslaxwormexecutionkeyloggerpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

195.10.205.94:7725

Mutex

rliv2fMggtmcxYMM

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      1669d57e8c83d0666c86fafcd484a5fd158c995a58ad9a6855c56d849c00b40b.exe

    • Size

      2.2MB

    • MD5

      31cbb0ad4fbff526978c68212a36fb90

    • SHA1

      d5cbdd8f03037a73dd40c0819498c969ae5b9102

    • SHA256

      1669d57e8c83d0666c86fafcd484a5fd158c995a58ad9a6855c56d849c00b40b

    • SHA512

      3f8e80aa86d486eacf4336b6a0a8f9c997de33a7ae1da5a1637e99fc168e0c4c8c1a9324b3c9bb69ce74d3529a881931234f45764d8f46810d820fb5629414a5

    • SSDEEP

      49152:eF50a6aPVOFMx3SmroCZscivbS6mqxEWoKmqZJffp3vSsqPUCeaw1GANOmJA:croA7P/YJ

    Score
    10/10
    agentteslaxwormexecutionkeyloggerpersistenceratspywarestealertrojan

    • AgentTesla

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

      keyloggertrojanstealerspywareagenttesla

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks