Malicious PDF — malware analysis report

Static analysis result for SHA-256 0edc8ef210f8518a…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 20:54:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e448eb061c23351b971c10031e862260 SHA-1: 3c9bb55ea98960a9d0e5505f7a98d1e0ab5f2b4f SHA-256: 0edc8ef210f8518adcf3ecc788b579822f6983936c42f27bbed357d66d391e90
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a malicious redirector link, specifically advertising a 'free generator / game hack'. The document body also contains the same lure and URL. This indicates a social engineering attempt to trick the user into visiting a malicious site, likely to download further malware or engage in other malicious activities.

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.tw/app/431946152/robux-gratis-game-hack In PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/impact-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/how-to-get-free-things-in-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/hack-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/free-robux-kazok-only_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/coin-master-500-free-spins_GM406889139.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_off0000330c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330C 22716 bytes
SHA-256: 52528321a394741f51e025ab3cbb4527cb7bb9896d51d67e17e409ca44cade2e
font_01_sfnt_off000065a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A6 18776 bytes
SHA-256: 64e0eacfd3f3664a1005437cf3df50ecb5e8219eed054557667feeb69243a319

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