Overview

overview

10

Static

static

Fancourier...RO.rtf

windows7_x64

10

Fancourier...RO.rtf

windows10-2004_x64

1

Sharing

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General

  • Target

    Fancourier 09032200754RO.doc

  • Size

    8KB

  • Sample

    220318-l1nfdahddk

  • MD5

    dd0d255c24c4f4b30476e4436e8da481

  • SHA1

    18ab850d4541e49d22283ce6eccb2982e1d9be9c

  • SHA256

    0c13d115f03d22b2d047060e7bad6484849cca98041dc449630e34a7f56b9afe

  • SHA512

    ca464f745f276f4ffbaab7c729fe444b050a699ed1af84ca9ceb2c5c42cb5c76fcccc310bfd1d629175ea46d6b04e28b920603d3bf309a6f14ed903e7f613ecf

Score
10/10
asyncrat2persistencerat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

2

C2

212.193.30.54:9524

Mutex

wyQ92!.,=FT72few

Attributes
  • anti_vm

    false

  • bsod

    false

  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    null

aes.plain

Targets

    • Target

      Fancourier 09032200754RO.doc

    • Size

      8KB

    • MD5

      dd0d255c24c4f4b30476e4436e8da481

    • SHA1

      18ab850d4541e49d22283ce6eccb2982e1d9be9c

    • SHA256

      0c13d115f03d22b2d047060e7bad6484849cca98041dc449630e34a7f56b9afe

    • SHA512

      ca464f745f276f4ffbaab7c729fe444b050a699ed1af84ca9ceb2c5c42cb5c76fcccc310bfd1d629175ea46d6b04e28b920603d3bf309a6f14ed903e7f613ecf

    Score
    10/10
    asyncrat2persistencerat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Async RAT payload

      rat

    • AsyncRAT

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1
T1203

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks