Malicious PDF — malware analysis report

Static analysis result for SHA-256 728a1fb570013e68…

MALICIOUS

PDF

33.7 KB Created: 2021-06-30 19:02:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6b31657d58da88289ad7792cda2fe7df SHA-1: 4716d6162801f4571aa14380007b93a8954bea05 SHA-256: 728a1fb570013e6803ceaabc0c40f7a7e140020cbcb2230dbe1593b820843f64
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure is a link to 'free robux', which is a common theme in phishing and scam campaigns. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into visiting potentially harmful sites.

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/google-how-do-we-get-free-robux-game-hack In PDF document text
    • http://perpus.polimarim.online/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-obc-on-roblox-2021-no-waiting_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/cheat-mode-one-punch-man-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-hack-911_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/www-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/xray-hack_GM479516143.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-admin-panel-pastebin_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/roblox-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/como-poner-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-redeem-pin-code-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-to-get-free-robux-on-roblox-2021-working_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/free-robux-2021-maps_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/robux-for-free-pc_GM431946152.pdfIn PDF document text
    • http://perpus.polimarim.online/repository/cheat-lib-roblox_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_off00002d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5E 21800 bytes
SHA-256: c4a2c12310ba520ffda47a81b78fc97f51df2ab8b3b8c7f5633970f31e3e1c95
font_01_sfnt_off00005d76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D76 19424 bytes
SHA-256: 70b86d24ad5ae32f98aed12d776f0cc42ada4332f57d12a3ce420cd3289a6e8a

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