General

  • Target

    FACTURE_.zip

  • Size

    578B

  • Sample

    220719-r5ab7sega7

  • MD5

    38fe63b765f5751372cc3ede1ed452be

  • SHA1

    d508be1f87986fc0b104b22253908f67bf915944

  • SHA256

    575e4be09039061ce25c80c7a2c922955e2b8a2b18aa62924985a81b024a63ad

  • SHA512

    5a01250a8fd1695087e3098df42ef3c3a9c2a13b4cd980c4ee221e0b393b4b6c0095d2fe70a10e54a7a9613fc013623e5c9999d402290ff854f937e55dcc2d7a

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

secureyourdataarea1.duckdns.org:56390

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      FACTURE_.LNK

    • Size

      1012B

    • MD5

      60cddf458ccce0249bc3654f282f7b2e

    • SHA1

      19a6ab379f925509d7cc36524c716877f4a268a0

    • SHA256

      b0cf721309f7ea1684e2593a3e3c98f080146274432f39c9e2d2982ba1c9da95

    • SHA512

      cd86c8e423ad3eaad92e67241896976c5e02ecea5d0c2dafef08e17eb6786fae0682d5bd0e59897b06faf06a3cef4a3883c03331c450574ae753bba6477bda91

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Detect Neshta payload

    • Modifies Windows Defender Real-time Protection settings

    • Modifies system executable filetype association

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

    • Async RAT payload

    • 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.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Windows security modification

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

2
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Tasks