Overview

overview

10

Static

static

1

123.exe

windows7-x64

10

123.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    123.exe

  • Size

    165KB

  • Sample

    230323-m1g42afb49

  • MD5

    85e184f78890926b234f00e849f784a5

  • SHA1

    b4b29e2e1c783ca42d4619b5c403590a1a213d2e

  • SHA256

    f8c1d4136081e19fba8ea2c9ba40487a65e5a338997116fda7b4845cb5138990

  • SHA512

    0a5040c43e2a65c33e54d3547ebc6b7ee853f46359752b8693757c4cf54520c2cd357b575c2bdc04cc378da4e1ae847005db95f674ba175fe23227760c738f75

  • SSDEEP

    3072:iEBMe85qktJGThMsYMkHwl5cAOVw28lNb7fexY/Mhs6kO:iEB5857MThzYM8wl5cDKH7UYEl

Score
10/10
asyncratdiscoveryevasionpersistencerattrojan

Malware Config

Extracted

Credentials

  • Protocol:     ftp
  • Host:
    45.151.135.235
  • Port:
    21
  • Username:
    123
  • Password:
    123

Extracted

Family

asyncrat

C2

61.160.213.14:8848

Mutex

xihongshi

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      123.exe

    • Size

      165KB

    • MD5

      85e184f78890926b234f00e849f784a5

    • SHA1

      b4b29e2e1c783ca42d4619b5c403590a1a213d2e

    • SHA256

      f8c1d4136081e19fba8ea2c9ba40487a65e5a338997116fda7b4845cb5138990

    • SHA512

      0a5040c43e2a65c33e54d3547ebc6b7ee853f46359752b8693757c4cf54520c2cd357b575c2bdc04cc378da4e1ae847005db95f674ba175fe23227760c738f75

    • SSDEEP

      3072:iEBMe85qktJGThMsYMkHwl5cAOVw28lNb7fexY/Mhs6kO:iEB5857MThzYM8wl5cDKH7UYEl

    Score
    10/10
    asyncratdiscoveryevasionpersistencerattrojan

    • AsyncRat

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

      ratasyncrat

    • UAC bypass

      evasiontrojan

    • Async RAT payload

      rat

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Checks whether UAC is enabled

      evasiontrojan
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks