Overview

overview

10

Static

static

f06d2b32fd...56.exe

windows7-x64

8

f06d2b32fd...56.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f06d2b32fd1a26d08d0199b3e9942356.exe

  • Size

    5KB

  • Sample

    221227-lbcycaef35

  • MD5

    f06d2b32fd1a26d08d0199b3e9942356

  • SHA1

    545fb4409348a4786e06654b647c15dfbe473137

  • SHA256

    279da621a31ae6331d05536c2bf5bab48290a22f276d50edc65aaa4f6d25abfa

  • SHA512

    9b01f6c989ed324b61cd4a1ca39dc3c745190af71a5a72853b08a18b9ead454a3689ee553ef1cd31e7da478eda27712bd0a7666a4e9857a73c85118ebcfd64d8

  • SSDEEP

    96:u679uSCFHm+NEsdPML8M/mYG4ntvngd3ojfrl:uc9uZF5NEqP68M/m2gdA

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

      f06d2b32fd1a26d08d0199b3e9942356.exe

    • Size

      5KB

    • MD5

      f06d2b32fd1a26d08d0199b3e9942356

    • SHA1

      545fb4409348a4786e06654b647c15dfbe473137

    • SHA256

      279da621a31ae6331d05536c2bf5bab48290a22f276d50edc65aaa4f6d25abfa

    • SHA512

      9b01f6c989ed324b61cd4a1ca39dc3c745190af71a5a72853b08a18b9ead454a3689ee553ef1cd31e7da478eda27712bd0a7666a4e9857a73c85118ebcfd64d8

    • SSDEEP

      96:u679uSCFHm+NEsdPML8M/mYG4ntvngd3ojfrl:uc9uZF5NEqP68M/m2gdA

    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