Overview

overview

10

Static

static

599e17a85a...c6.exe

windows7-x64

8

599e17a85a...c6.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    599e17a85afe5abfc5e7f0210a5d76241bc5304d4ff1fd6f5376bd2aa859a3c6

  • Size

    6KB

  • Sample

    221205-g6l3aahc9v

  • MD5

    224ad38879a55ecc379737225d02b85c

  • SHA1

    260cfe1499c16b381698a462f0997b105add2e9d

  • SHA256

    599e17a85afe5abfc5e7f0210a5d76241bc5304d4ff1fd6f5376bd2aa859a3c6

  • SHA512

    fd781fee26055eeb4eed26058146a5423684543099313c8d6f6c4f157e6484c89cc2d7180f5b82555ce5eb194e595bbb5ce4da8f3e0eba7b1bca27a2a66ce335

  • SSDEEP

    96:I8J79BlBCF5NTcofNVIIKtgNtUqpkK77mc359ed3ojXrl:z9BuFDNNVI5ONtUqpkK77Rzeda

Score
10/10
asyncratdefendersmartscrenrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

DefenderSmartScren

C2

217.64.31.3:8437

Mutex

DefenderSmartScren

Attributes
  • delay

    3

  • install

    false

  • install_file

    SecurityHealtheurvice.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      599e17a85afe5abfc5e7f0210a5d76241bc5304d4ff1fd6f5376bd2aa859a3c6

    • Size

      6KB

    • MD5

      224ad38879a55ecc379737225d02b85c

    • SHA1

      260cfe1499c16b381698a462f0997b105add2e9d

    • SHA256

      599e17a85afe5abfc5e7f0210a5d76241bc5304d4ff1fd6f5376bd2aa859a3c6

    • SHA512

      fd781fee26055eeb4eed26058146a5423684543099313c8d6f6c4f157e6484c89cc2d7180f5b82555ce5eb194e595bbb5ce4da8f3e0eba7b1bca27a2a66ce335

    • SSDEEP

      96:I8J79BlBCF5NTcofNVIIKtgNtUqpkK77mc359ed3ojXrl:z9BuFDNNVI5ONtUqpkK77Rzeda

    Score
    10/10
    asyncratdefendersmartscrenrat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Async RAT payload

      rat

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks