Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a0107d4ea4423f6…

MALICIOUS

PDF

44.4 KB Created: 2021-05-15 16:28:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 0c8fe42523bd10fa475ec6a08b72967f SHA-1: 48995539001fd105d44ce0420be793ac2aa22f4e SHA-256: 1a0107d4ea4423f6ac07bad44f5d8ed2df006a5f7b21f818cd8b69c64edb52cf
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with a link. This link, 'https://netcdn.xyz/app/406889139/coin-master-card-hack-apk-game-hack', redirects to a game hack website, suggesting a social engineering tactic to deliver a payload. While no scripts were directly extracted, the PDF structure and embedded links strongly indicate an attempt to exploit user interaction for malicious purposes, likely leading to further stages of infection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/coin-master-card-hack-apk-game-hack PDF link annotation
    • https://my-private-intendant.com/images/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-card-link-free_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/roblox-people-girl_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://my-private-intendant.com/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/roblox-top_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/daily-free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/hack-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/robux-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047cb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CB 25092 bytes
SHA-256: de3fbb65d1cb12c180ce854b900bb8f560ad569890ab0ed4a72ba0952f2ec81f
font_01_sfnt_off000081bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81BD 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008b6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6E 18068 bytes
SHA-256: 253c022fea36e2edfdded8e932a5d2c5ace7c2c75107348eb73538d72e63084f

Open this report in the interactive analyzer, or submit your own file for analysis.