Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0fdc3d67f88a59c…

MALICIOUS

PDF

44.7 KB Created: 2021-06-02 12:49:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dbb8cb5978ed6375c3686c4b9d4df962 SHA-1: 354289d0aeee84c2acaeb32b5545fff6febb91cc SHA-256: a0fdc3d67f88a59c50d9909356c5ad3af416d4112df07a39fff4cca8f00c6594
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and redirects to a malicious URL. The ML classifier strongly indicates maliciousness. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to trick the user into visiting a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • 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.
  • 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/431946152/comment-hacker-bird-simulator-dans-roblox-game-hack PDF link annotation
    • http://axiapublishers.com/images/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://axiapublishers.com/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://axiapublishers.com/images/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://axiapublishers.com/images/xray-hack_GM479516143.pdfIn PDF document text
    • http://axiapublishers.com/images/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://axiapublishers.com/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://axiapublishers.com/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/how-much-pokemon-go-free-today_GM1094591345.pdfIn PDF document text
    • http://axiapublishers.com/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://axiapublishers.com/images/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://axiapublishers.com/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://axiapublishers.com/images/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://axiapublishers.com/images/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://rblx.landIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005064.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5064 24752 bytes
SHA-256: 66e9fe24bdce8fec97055add73e78315621ec3ba7f093aefbc7857c8cc1a78eb
font_01_sfnt_off00008982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8982 19148 bytes
SHA-256: aca2c005ced19b99cfb1b779cfbe44dbb6deda8ba4329bf1ffbddf351ff93c64

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