Overview

overview

10

Static

static

7

MailAcessC...ky.exe

windows7-x64

10

MailAcessC...ky.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    MailAcessCheckerbyxRisky.exe

  • Size

    10.4MB

  • Sample

    240803-lxfalavcqb

  • MD5

    0bfe538046352ebb0d7b5fcd50a287ad

  • SHA1

    e76a0b5d42648df99604079af74931a333703ef3

  • SHA256

    a32ad92bc669d691f17c943761f30ebbdc17e85054595c648d78c1015ffcebb9

  • SHA512

    e938f69267ed773f26ec8b7d47d98b127c6f659ef04fde925484a1e755e20b435d61a2d3822274e23db48caaa1574c51ce3cb5c87c8c24109998bb0e0a58bfd2

  • SSDEEP

    196608:+6JnRoCYJnksvvcHbMdYWSm2iLRoyru5Q2ZGe/QDbA0SnTbja57K4q6:FPoVJnpqi+6XySReIqHjaQ4q

Score
10/10
asyncratdiscoveryevasionratthemidatrojan

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Mutex

AsyncMutex_7SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    ContainerRuntime.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/Kb8rTgY7

aes.plain

Targets

    • Target

      MailAcessCheckerbyxRisky.exe

    • Size

      10.4MB

    • MD5

      0bfe538046352ebb0d7b5fcd50a287ad

    • SHA1

      e76a0b5d42648df99604079af74931a333703ef3

    • SHA256

      a32ad92bc669d691f17c943761f30ebbdc17e85054595c648d78c1015ffcebb9

    • SHA512

      e938f69267ed773f26ec8b7d47d98b127c6f659ef04fde925484a1e755e20b435d61a2d3822274e23db48caaa1574c51ce3cb5c87c8c24109998bb0e0a58bfd2

    • SSDEEP

      196608:+6JnRoCYJnksvvcHbMdYWSm2iLRoyru5Q2ZGe/QDbA0SnTbja57K4q6:FPoVJnpqi+6XySReIqHjaQ4q

    Score
    10/10
    asyncratdiscoveryevasionratthemidatrojan

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Async RAT payload

      rat

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks