Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e9be2f113d0408…

MALICIOUS

PDF

44.6 KB Created: 2021-05-13 22:44:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4f7f1fa2c247837fae2840eb7253c962 SHA-1: bd41aef3b433be29374d4e5befa853a9e1a46cf0 SHA-256: d3e9be2f113d0408ecc62682379044852fdfb1434d9a57916341d5390a67690f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as offers for game hacks and generators. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting these malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a high likelihood of redirecting users to download further malicious content or engage in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/479516143/minecraft-free-download-mobile-game-hack In PDF document text
    • http://installer-m.ru/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://installer-m.ru/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://installer-m.ru/images/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/freerobux-co_GM431946152.pdfIn PDF document text
    • http://installer-m.ru/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://installer-m.ru/images/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • http://installer-m.ru/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://installer-m.ru/images/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://installer-m.ru/images/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://installer-m.ru/images/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://installer-m.ru/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://installer-m.ru/images/give-free-robux_GM431946152.pdfIn PDF document text
    • https://freegiftcodes.euIn 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_off000048cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48CD 24820 bytes
SHA-256: fb567895aa059b769870671e7d6692e03c0eac38dc845036a2e9cd250911bca7
font_01_sfnt_off0000815d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x815D 2880 bytes
SHA-256: 8e94a3e6d0b915631333312aaa51ae05a0eeba0704f4e9e40d86aec9d096645c
font_02_sfnt_off00008b4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4F 18448 bytes
SHA-256: 1515dea36b54f390db2656cd1e78578212b0857dcc74367194bf1f7b23864c35

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