Overview

overview

10

Static

static

8573d9e75f...cb.exe

windows7-x64

10

8573d9e75f...cb.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    125s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • submitted
    15-08-2022 18:46

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General

  • Target

    8573d9e75f2c0ef4e69023fc07bee9cb.exe

  • Size

    91KB

  • MD5

    8573d9e75f2c0ef4e69023fc07bee9cb

  • SHA1

    4f3afbab31505056fd71f462bd52f98f3dd9f8ff

  • SHA256

    e5d590f782337416fe7f93aa7f488419f86802500d05ef2fced4ccca7f4e14ae

  • SHA512

    11bbaa8c41989d583ca1af59d8c51b80825634807dfcd8fc50f5e8d3190d224ca48139f70e10a2993b9ae1bca599ee0dd1422af5c716f5441c533c1dedef72e7

  • SSDEEP

    1536:dbRiQM/57SK3bUzZdQ1iIMvnZlbLxjV3AGq5gWlocT1wzySsd9NJ33B:dbRE57SKsstcnZTJQDgWPaySsdH5x

Score
10/10
arrowrattypersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

TY

C2

91.134.207.23:5337

Mutex

DFDFrcvff45thfgh4t44gjahdfhhhhca

Signatures

  • ArrowRat

    Remote access tool with various capabilities first seen in late 2021.

    ratarrowrat
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 51 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8573d9e75f2c0ef4e69023fc07bee9cb.exe
    "C:\Users\Admin\AppData\Local\Temp\8573d9e75f2c0ef4e69023fc07bee9cb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3432
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4936
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" TY 91.134.207.23 5337 DFDFrcvff45thfgh4t44gjahdfhhhhca
      2⤵
        PID:3948
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4660
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1472

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Query Registry

    3
    T1012

    Peripheral Device Discovery

    2
    T1120

    System Information Discovery

    3
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1472-164-0x0000029B80006000-0x0000029B8000A000-memory.dmp
      Filesize

      16KB

      Download
    • memory/1472-170-0x0000029B8000A000-0x0000029B8000D000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-159-0x000002A3F4C20000-0x000002A3F4C40000-memory.dmp
      Filesize

      128KB

      Download
    • memory/1472-175-0x0000029B80020000-0x0000029B80023000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-160-0x000002A3FCA10000-0x000002A3FCB10000-memory.dmp
      Filesize

      1024KB

      Download
    • memory/1472-174-0x0000029B80020000-0x0000029B80023000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-173-0x0000029B80020000-0x0000029B80023000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-161-0x0000029B80006000-0x0000029B8000A000-memory.dmp
      Filesize

      16KB

      Download
    • memory/1472-153-0x0000029B8000C000-0x0000029B8000F000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-154-0x0000029B8000C000-0x0000029B8000F000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-152-0x0000029B8000C000-0x0000029B8000F000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-158-0x000002A3F4C00000-0x000002A3F4C20000-memory.dmp
      Filesize

      128KB

      Download
    • memory/1472-168-0x0000029B8000A000-0x0000029B8000D000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-169-0x0000029B8000A000-0x0000029B8000D000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-151-0x0000029B8000C000-0x0000029B8000F000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1472-162-0x0000029B80006000-0x0000029B8000A000-memory.dmp
      Filesize

      16KB

      Download
    • memory/1472-163-0x0000029B80006000-0x0000029B8000A000-memory.dmp
      Filesize

      16KB

      Download
    • memory/1472-165-0x0000029B80006000-0x0000029B8000A000-memory.dmp
      Filesize

      16KB

      Download
    • memory/3432-132-0x0000000000700000-0x000000000071E000-memory.dmp
      Filesize

      120KB

      Download
    • memory/3432-133-0x0000000005650000-0x0000000005BF4000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/3432-134-0x0000000005240000-0x00000000052DC000-memory.dmp
      Filesize

      624KB

      Download
    • memory/3948-136-0x0000000000000000-mapping.dmp
      Download
    • memory/3948-138-0x0000000005060000-0x00000000050F2000-memory.dmp
      Filesize

      584KB

      Download
    • memory/3948-137-0x0000000000400000-0x0000000000410000-memory.dmp
      Filesize

      64KB

      Download
    • memory/4936-135-0x0000000000000000-mapping.dmp
      Download