Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f0c93739a8ae55e…

MALICIOUS

PDF

35.0 KB Created: 2021-07-02 03:17:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5b8e824850b343366510a98f484ce808 SHA-1: 8ff6777f295f7b07d1e3677d065f659d023c0f21 SHA-256: 2f0c93739a8ae55ecee56bd8c86ae93235bcdcaf6cd449c8d75235f676021d11
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a malicious redirector, specifically advertising 'hack-robux-online-game-hack'. This lure is designed to trick users into clicking the link, which then likely leads to a second-stage payload download or a phishing page. The presence of multiple similar lures suggests a campaign focused on exploiting interest in free in-game items.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.co/app/431946152/hack-robux-online-game-hack In PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/tiktok-free-view-year_GM835599320.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/redeem-code-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-stuff-catalog-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/roblox-how-to-use-cheat-engine-63_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-robux-download_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/new-roblox-jailbreak-hack-free-money_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/how-to-find-hacker-accounts-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-roblox-accounts-2021-may_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-ears-roblox-hat_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://elearning.man-purbalingga.sch.id/__statics/gudangsoal/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A4 22588 bytes
SHA-256: 4f058b92018dcb2d1c124da549334026108b2faf8e69c526755464b6b42bbbd7
font_01_sfnt_off00006402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6402 18916 bytes
SHA-256: 44ec7cc606205459034e39fa3a1aed9e94765bcbabe67cfe74bd016363fb9c9f

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