Overview

overview

10

Static

static

3

custombuil..._1.exe

windows7-x64

7

custombuil..._1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    custombuildnl.fr_1.exe

  • Size

    33.2MB

  • Sample

    240504-z9qhzseg78

  • MD5

    3b2b7e806989b481aeb8a71eb95c9e9e

  • SHA1

    dd1d80a59120aeaaa1239c05cf385579226747f7

  • SHA256

    56e17b8f1e7d3348d2c8730369594171547017906ffd95109dc2ec8da127ca48

  • SHA512

    9c4936b8b82092897f877825b6b6275b075f81a02bf0326792ecd393f3d839495ccb4422d2d55b95f35d5f509f59ff540e46826d7ddcbcb2f5d76d08eb759f00

  • SSDEEP

    786432:1dM77JXb1ukCDeE6q+m5jVagaIQm2q+L5+u9Y2KN:1dI1EDX6q3Am2F3K

Score
10/10
milleniumratevasionexecutionpersistencepyinstallerratspywarestealerupx

Malware Config

Targets

    • Target

      custombuildnl.fr_1.exe

    • Size

      33.2MB

    • MD5

      3b2b7e806989b481aeb8a71eb95c9e9e

    • SHA1

      dd1d80a59120aeaaa1239c05cf385579226747f7

    • SHA256

      56e17b8f1e7d3348d2c8730369594171547017906ffd95109dc2ec8da127ca48

    • SHA512

      9c4936b8b82092897f877825b6b6275b075f81a02bf0326792ecd393f3d839495ccb4422d2d55b95f35d5f509f59ff540e46826d7ddcbcb2f5d76d08eb759f00

    • SSDEEP

      786432:1dM77JXb1ukCDeE6q+m5jVagaIQm2q+L5+u9Y2KN:1dI1EDX6q3Am2F3K

    Score
    10/10
    upxmilleniumratevasionexecutionpersistencepyinstallerratspywarestealer

    • MilleniumRat

      MilleniumRat is a remote access trojan written in C#.

      ratstealermilleniumrat

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

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

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

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

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

Query Registry

3
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Service Stop

1
T1489

Tasks