Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    13-02-2023 14:43

General

  • Target

    bJBm.exe

  • Size

    63KB

  • MD5

    a91fcb3d082178ef662efa929573458a

  • SHA1

    f009343efccfb6fb00684ff425d57680957edd55

  • SHA256

    ceb12c810554c6988f7a88335613971616ef832dfd7e9027ae3bdf76f0974ee4

  • SHA512

    a71acaf1a7446c843cf6c10e8992f159b93e4e0a32ac5c82faea85dfc7dde588f8df05e617b43e383d5795c09f2f3cf7e77e5c03844fa879e246b54fad0ed18d

  • SSDEEP

    1536:HhYBLTM3Ufc4c7VGeeiMl8GbbXwagzDGZZVclN:HhYBLTM3UfcVVfeFmGbbXOezY

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/H9hfZYSE

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Async RAT payload 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bJBm.exe
    "C:\Users\Admin\AppData\Local\Temp\bJBm.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:1792

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Command and Control

Web Service

1
T1102

Replay Monitor

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Downloads

  • memory/1792-54-0x0000000000DD0000-0x0000000000DE6000-memory.dmp
    Filesize

    88KB