Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0471770a3002d3b…

MALICIOUS

PDF

43.4 KB Created: 2021-06-03 13:30:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: dad095225b58effc79561bb174e5f290 SHA-1: 07fe1aa49bb68a169602e1c2d5eaf38fc5ec9917 SHA-256: e0471770a3002d3b0cc8d260ad229e327f1719d73b071ffd382ae8df1c1043b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary malicious URL identified is https://netcdn.online/app/406889139/kachifpro-game-hack, which is designed to lure users into clicking through to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a social engineering tactic to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/kachifpro-game-hack In PDF document text
    • http://digilib.stimata.ac.id/repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/pokemon-go-free-incense_GM1094591345.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-script_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-quora_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
stream_004_off0000516a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x516A 24384 bytes
SHA-256: 8c6e42f4748666cbfc420102f14207e0969ff68aafdec9df22f5d46939b9501e
font_01_sfnt_off000088b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B8 17784 bytes
SHA-256: f5f16e9fe06415f99f9f196ec79e922628d3dac9c37f6a7894d79eeb781dffd0

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