Overview

overview

8

Static

static

3

ExecutorByYsrr.exe

windows11-21h2-x64

8

main.pyc

windows11-21h2-x64

3

Sharing

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General

  • Target

    ExecutorByYsrr.exe

  • Size

    34.2MB

  • Sample

    240708-v8my9azgrr

  • MD5

    44886a4a66666fbf2a4122914e925f4d

  • SHA1

    b3a7eb12cb3f2bc703a24dd82dd8a1207583ecfc

  • SHA256

    144d64e9583ff8fc04239bfa67cf240603542455bb3dea5008233ebfeba221b6

  • SHA512

    2609770e126618f3440d1ff0a2de637cd5a17934d9a6ae9b2a81554c3f14b37a9728d45d7f79fa50730fabb22f7e97ba2f9dc41352a2f5e88a84e1c166919ba7

  • SSDEEP

    786432:NRaNrV2IXxHOueDcZdDPbp1m7Uwai+lkWwA600K:NR0rV5uuFp1cDai+2WW

Score
8/10
evasionexecutionpersistencepyinstallerspywarestealerupx

Malware Config

Targets

    • Target

      ExecutorByYsrr.exe

    • Size

      34.2MB

    • MD5

      44886a4a66666fbf2a4122914e925f4d

    • SHA1

      b3a7eb12cb3f2bc703a24dd82dd8a1207583ecfc

    • SHA256

      144d64e9583ff8fc04239bfa67cf240603542455bb3dea5008233ebfeba221b6

    • SHA512

      2609770e126618f3440d1ff0a2de637cd5a17934d9a6ae9b2a81554c3f14b37a9728d45d7f79fa50730fabb22f7e97ba2f9dc41352a2f5e88a84e1c166919ba7

    • SSDEEP

      786432:NRaNrV2IXxHOueDcZdDPbp1m7Uwai+lkWwA600K:NR0rV5uuFp1cDai+2WW

    Score
    8/10
    evasionexecutionpersistencepyinstallerspywarestealerupx

    • Command and Scripting Interpreter: PowerShell

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

      execution

    • Stops running service(s)

      evasionexecution

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • 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 NtSetInformationThreadHideFromDebugger

    behavioral1

    • Target

      main.pyc

    • Size

      437B

    • MD5

      e3a83cc96bc468e8ed5e99b61ab1b08c

    • SHA1

      fc094fba9141e8ace98cce0309e1472b2471b631

    • SHA256

      893f6af6a7c380817dd8a1e5f63e72225b82c9775dc8ca40a449ed86c0427932

    • SHA512

      6d629486b39cef47bd2ce9b79ff792eebee83e4bdcbb30a756aabcbce75473a732ce2f3e89f0d200a4f9dc98765ce07538a9737cd428b2b372a6d36f4e78630d

    Score
    3/10
    behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Impair Defenses

1
T1562

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Process Discovery

1
T1057

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Service Stop

1
T1489

Tasks