Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c7995580c5bf16b…

MALICIOUS

PDF

46.3 KB Created: 2020-08-15 16:41:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 523d715ed5aa714692caccc61ad1d749 SHA-1: c07c9460bb752015b3100c3874f4317659b54aa4 SHA-256: 4c7995580c5bf16ba8cabf059f92c047358308ebd18dcb39a24cbd1b324d4e28
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious URL, disguised as a download for a game APK. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this behavior. The document body and embedded links suggest a lure to trick users into visiting the malicious site, likely for further exploitation or malware delivery. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.ru/pify?keyword=naruto+ultimate+ninja+blazing+unlimited+pearls+apk In PDF document text
    • http://files.montessoricenterofjackson.org/uploads/1/3/1/3/131380894/e95839.pdfIn PDF document text
    • http://files.jonkammerman.com/uploads/1/3/2/6/132695408/zigelabamilizot_rininago_bufaf.pdfIn PDF document text
    • http://likifalo.sierravistachurch.org/uploads/1/3/0/7/130775521/nejofutelem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8935/3117/files/15769673933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/29529575765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/2955/7411/files/mahalaxmi_calendar_november_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/nafagipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0017/6544/files/curtis_ryan_honda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3531/0752/files/gegisowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7618/1400/files/libadonumexesijitiwiwopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/bloomberg_businessweek_trkiye.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7047/8746/files/lyft_vehicle_inspection_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2373/6725/files/borderline_personality_disorder_demystified.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

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_off000076c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76C0 5580 bytes
SHA-256: 69bf3667ece87f21394826dd4b5816fb7207817f47e3af54c3af0287e01e3467
font_01_sfnt_off000089ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AE 10120 bytes
SHA-256: 35bb3726d15d83e01c586ce5571bc4a95d5b4fc137135bea911f057baf9323f2

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