Overview

overview

10

Static

static

8

fikik.exe

windows7-x64

8

fikik.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fikik.exe

  • Size

    537KB

  • Sample

    221213-emykvsgc41

  • MD5

    3849bba366134a2553a6c1f77f2ad17b

  • SHA1

    9bd9c549bbc48239da1fe1bb8da79e563afc98a1

  • SHA256

    1f1c42450a44e9cbd112572924d3ecd8da99c2ed848df0beb0c7c10c60faf85b

  • SHA512

    4d2b8fb3978d55fe99a5068bb9b86a42d1a3a6f78fe006120e4c410adfff91cd2b028d06b852d806faeb01c004a308036902bbe30d3f8ce27fd17cfa10a6cdaf

  • SSDEEP

    12288:V4lThwQGIQilGzWTifG1g6eUt5uPPRg7zhTnn6wi8TQBVWE:elTOFq7TifGG6wR6TnRi8To

Score
10/10
asyncratdefendersmartscrensystem guard runtimepersistenceratupx

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

System Guard Runtime

C2

85.105.88.221:2531

Mutex

System Guard Runtime

Attributes
  • delay

    3

  • install

    false

  • install_file

    System Guard Runtime

  • install_folder

    %AppData%

aes.plain

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

      fikik.exe

    • Size

      537KB

    • MD5

      3849bba366134a2553a6c1f77f2ad17b

    • SHA1

      9bd9c549bbc48239da1fe1bb8da79e563afc98a1

    • SHA256

      1f1c42450a44e9cbd112572924d3ecd8da99c2ed848df0beb0c7c10c60faf85b

    • SHA512

      4d2b8fb3978d55fe99a5068bb9b86a42d1a3a6f78fe006120e4c410adfff91cd2b028d06b852d806faeb01c004a308036902bbe30d3f8ce27fd17cfa10a6cdaf

    • SSDEEP

      12288:V4lThwQGIQilGzWTifG1g6eUt5uPPRg7zhTnn6wi8TQBVWE:elTOFq7TifGG6wR6TnRi8To

    Score
    10/10
    upxasyncratdefendersmartscrensystem guard runtimepersistencerat

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks