Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a3845e707ae609c…

MALICIOUS

PDF

34.1 KB Created: 2021-06-19 18:57:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8d87bc834173c9197042f46be263e6c5 SHA-1: d804a16f766b7f9f77df34a92b1ef990aff43d74 SHA-256: 8a3845e707ae609ce75b37122aa4f11cba608122d164e428a7774c8e4c2b5039
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a prominent link disguised as a "free generator / game hack" lure. The link redirects to malicious infrastructure, indicating a phishing or scam attempt. While no scripts were extracted, the document's structure and embedded URLs strongly suggest a social engineering tactic to drive traffic to potentially harmful sites. The ML classifier also flagged this document with high confidence.

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/835599320/free-tiktok-hearts-game-hack In PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/how-to-get-cheat-engine-roblox-elemental-wars_GM431946152.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/free-online-robux-generator-no-surveys_GM431946152.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/pokemon-go-free-friend-codes_GM1094591345.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/comment-hack-un-compte-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/free-spin-coin-master-link-download_GM406889139.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/minecraft-net-free_GM479516143.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/minecraft-pe_GM479516143.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/coin-master-hack-download_GM406889139.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.manurululum.web.id/__statics/gudangsoal/files/roblox-but_GM431946152.pdfIn 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
font_00_sfnt_off0000319d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319D 22416 bytes
SHA-256: e4e1399c2cc298453356c2b6a5ab65a3e15224ac25491a254253066a4017c223
font_01_sfnt_off00006367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6367 17972 bytes
SHA-256: 7ae8a96e833d53b668f3d0d1b152179ee07eb1787f756478557dd86f9d59b839

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