Overview

overview

10

Static

static

7

05a68e1fdc...85.exe

windows7_x64

10

05a68e1fdc...85.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    05a68e1fdcf49840097ac9879ff8bf190f7a8a7d7dc33d95d849df9af46a6f85

  • Size

    2.6MB

  • Sample

    220708-yw2tesfabm

  • MD5

    7a8a6b5e4e5c662860bbd3adb7e22622

  • SHA1

    234fd518fc22dfd428586a4ba58f85f69be7705d

  • SHA256

    05a68e1fdcf49840097ac9879ff8bf190f7a8a7d7dc33d95d849df9af46a6f85

  • SHA512

    f8ec8a900a253beb54bd9328a9ada484678a2bd6a6b3a380222fa88c30a4653d4f899958a801ee270c4bc949d9d6aaa7ee46515c28f91013ba99869586c2d9c6

Score
10/10
asyncratevasionratthemidatrojan

Malware Config

Extracted

Family

asyncrat

Version

0.5.6A

C2

185.70.187.145:5555

Mutex

pehagymxwo

Attributes
  • delay

    5

  • install

    true

  • install_file

    gremor.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      05a68e1fdcf49840097ac9879ff8bf190f7a8a7d7dc33d95d849df9af46a6f85

    • Size

      2.6MB

    • MD5

      7a8a6b5e4e5c662860bbd3adb7e22622

    • SHA1

      234fd518fc22dfd428586a4ba58f85f69be7705d

    • SHA256

      05a68e1fdcf49840097ac9879ff8bf190f7a8a7d7dc33d95d849df9af46a6f85

    • SHA512

      f8ec8a900a253beb54bd9328a9ada484678a2bd6a6b3a380222fa88c30a4653d4f899958a801ee270c4bc949d9d6aaa7ee46515c28f91013ba99869586c2d9c6

    Score
    10/10
    asyncratevasionratthemidatrojan

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks