Overview

overview

10

Static

static

10

MrsMajor.exe

windows10-2004_x64

10

Resubmissions

16-12-2023 08:09

231216-j2l8laahgn 10

28-05-2022 09:38

220528-ll38aacga8 10

26-05-2022 13:52

220526-q6gl8sfhaj 10

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General

  • Target

    MrsMajor.exe

  • Size

    2.0MB

  • Sample

    220528-ll38aacga8

  • MD5

    d618f786ce4fab3de2bed530dc0e6850

  • SHA1

    6911db959f48b2fcfdecf12f52d31ec672488a5b

  • SHA256

    19b1e8a417e6a3092a74f776298efda14dfe7278a36ef9d7317860766f536a35

  • SHA512

    b1f681d31cda1d6ddeef883c220fb9b450670bd8e3795b740f4e1cd9d988239e8140703ddd9030eee2da97681f41fedc3be3b5f3c72dc9fe796be9eb6daece1f

Score
10/10
neshtaevasionpersistencespywarestealertrojan

Malware Config

Targets

    • Target

      MrsMajor.exe

    • Size

      2.0MB

    • MD5

      d618f786ce4fab3de2bed530dc0e6850

    • SHA1

      6911db959f48b2fcfdecf12f52d31ec672488a5b

    • SHA256

      19b1e8a417e6a3092a74f776298efda14dfe7278a36ef9d7317860766f536a35

    • SHA512

      b1f681d31cda1d6ddeef883c220fb9b450670bd8e3795b740f4e1cd9d988239e8140703ddd9030eee2da97681f41fedc3be3b5f3c72dc9fe796be9eb6daece1f

    Score
    10/10
    neshtaevasionpersistencespywarestealertrojan

    • Detect Neshta Payload

    • Modifies WinLogon for persistence

      persistence

    • Modifies system executable filetype association

      persistence

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

      persistencespywareneshta

    • UAC bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Executes dropped EXE

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Change Default File Association

1
T1042

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

4
T1112

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks