Overview

overview

10

Static

static

HY_RAY_RFQ,pdf .exe

windows7_x64

10

HY_RAY_RFQ,pdf .exe

windows10_x64

10

Analysis

  • max time kernel
    145s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    16-01-2021 07:36

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General

  • Target

    HY_RAY_RFQ,pdf .exe

  • Size

    812KB

  • MD5

    16e55e5dbbf48b3f0d453ac7fcccd908

  • SHA1

    7705956e0cf0d5d3e0429c1539dfc204e01c7d87

  • SHA256

    f641d9449ad546a0e9ff2f015ff03f9ce0263867caaef3a5cc462fd9b685b928

  • SHA512

    111812911c27801addb81373f3dcc7c2f3200c44e2ddcca33fe4989bfc81b5fd6662f2db33e0ae79a36787985ed1e6fc756baf8e4dda847111beb134f4afea5d

Score
10/10
asyncratrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

null:null

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    yFdiISTMNVqtdBU1VShPLhZnkF6gdamp

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    billion

  • host

    null

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    https://pastebin.com/raw/Q5Dxj1fY

  • port

    null

  • version

    0.5.7B

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

    ratasyncrat
  • Async RAT payload 4 IoCs
    rat
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HY_RAY_RFQ,pdf .exe
    "C:\Users\Admin\AppData\Local\Temp\HY_RAY_RFQ,pdf .exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\etElxxOddDniUS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6789.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1608
    • C:\Users\Admin\AppData\Local\Temp\HY_RAY_RFQ,pdf .exe
      "C:\Users\Admin\AppData\Local\Temp\HY_RAY_RFQ,pdf .exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1016

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6789.tmp
    MD5

    99c0e03148a45e4f86bd88d056ea9aa2

    SHA1

    d2eabb3feaa77b4f5e9d51d84a76bb18996433f0

    SHA256

    894ea3e47cd1046911d2f728d57e5f7ca3f71705f8c11af684e867ddfb264e7d

    SHA512

    9c1fc6b4be5c2992cd63d3784b0f932a9cdb85c5284b968d0e6cee719e2aa3d7d231110c800dde2d1309ee6177c65a361f925c1ccec485271314e2d27db15731

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  • memory/1016-9-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/1016-10-0x000000000040C77E-mapping.dmp
    Download
  • memory/1016-11-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/1016-12-0x0000000000400000-0x0000000000412000-memory.dmp
    Filesize

    72KB

    Download
  • memory/1016-13-0x0000000074120000-0x000000007480E000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/1608-7-0x0000000000000000-mapping.dmp
    Download
  • memory/1732-2-0x0000000074120000-0x000000007480E000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/1732-3-0x0000000000D90000-0x0000000000D91000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1732-5-0x00000000004B0000-0x00000000004C3000-memory.dmp
    Filesize

    76KB

    Download
  • memory/1732-6-0x0000000004D40000-0x0000000004D89000-memory.dmp
    Filesize

    292KB

    Download