Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc723fa40e491982…

MALICIOUS

PDF

34.4 KB Created: 2021-06-20 03:09:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: af16c264beee0a9e162b3bed1c149708 SHA-1: a98ea016f829f08d52883969960c52ae1ec86961 SHA-256: bc723fa40e4919829925692a6a2d979ef5c5201fb1657d71fb60224924b9f62d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on them by promising game hacks and free currency. One of these links, http://netcdn.co/app/431946152/hack-para-roblox-lumber-tycoon-2-game-hack, is identified as a malicious redirector. The document's content and embedded URLs strongly suggest a phishing or scam attempt to redirect users to potentially malicious sites. No scripts were extracted from this sample.

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-para-roblox-lumber-tycoon-2-game-hack In PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-hack-site-no-verification_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/hack-roblox-page_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/fbchampion-com_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off00002f6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6E 22000 bytes
SHA-256: 5cae1d9bf6e42cf0d64b9ff45df353a98f04e16be16fa39be6318ed48a0c37ef
font_01_sfnt_off00005fce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCE 19512 bytes
SHA-256: afbe3405cfe6a1bbdd3f4782521054d819f13484b185842faca2a0fa9130d3bb

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