Overview

overview

10

Static

static

10

bKUy.exe

windows7-x64

10

bKUy.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    98s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    27-03-2023 22:09

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General

  • Target

    bKUy.exe

  • Size

    63KB

  • MD5

    9bd557d5267ebfb6baaf4a21a66ed2c6

  • SHA1

    3c2c2b3bc380622464e99555df6da3a3830b7460

  • SHA256

    486d9c1f259ee472964bf817ed2b8e218440f7b1145230ff8cbba6a3da3c8f55

  • SHA512

    7f5f670e16bf389a46dfe67bbf9e6eea5232054a5014f087e14338c14fe9f4aa7e7cfde783638bea7cb51f648d98c67f1762856a7282bc4276a56435bc4fbde7

  • SSDEEP

    1536:zhp5LrUwk4Xq0WdZeeiMl8GbbXwI1vNGRZVclN:zhp5LrUwk4XqdMeFmGbbXRUzY

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

dcleomessi.duckdns.org:4243

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 2 IoCs
    rat
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\bKUy.exe
    "C:\Users\Admin\AppData\Local\Temp\bKUy.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1048

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\Tar573C.tmp
    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

    Download Submit
  • memory/1048-54-0x0000000000EC0000-0x0000000000ED6000-memory.dmp
    Filesize

    88KB

    Download
  • memory/1048-55-0x000000001B270000-0x000000001B2F0000-memory.dmp
    Filesize

    512KB

    Download
  • memory/1048-73-0x000000001B270000-0x000000001B2F0000-memory.dmp
    Filesize

    512KB

    Download
  • memory/1048-74-0x0000000000E30000-0x0000000000E96000-memory.dmp
    Filesize

    408KB

    Download