Malicious PDF — malware analysis report

Static analysis result for SHA-256 e48f4d93e0b542f2…

MALICIOUS

PDF

55.9 KB Created: 2020-08-21 13:45:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da63edbfcc5d72928eb5e048e570d94e SHA-1: 028f493575d9635f5f38e20691ae2ce522bcd100 SHA-256: e48f4d93e0b542f28884d70d38a5728f598d08a4604ac0f9cac09a54e4161367
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting PDF files. One prominent link redirects to `https://ttraff.ru/pify?keyword=effects+of+cyberbullying+research+paper+pdf`, which is flagged as a malicious redirector. This indicates a lure to download further malicious content or visit malicious sites. The ML classifier strongly supports the malicious verdict.

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=effects+of+cyberbullying+research+paper+pdf In PDF document text
    • http://files.shaneflynn.com/uploads/1/3/1/6/131637635/2859167.pdfIn PDF document text
    • http://sijilo.birminghamyouththeatre.co.uk/uploads/1/3/1/4/131483036/wuxelamixow_gaduma.pdfIn PDF document text
    • http://files.karlkueffel.de/uploads/1/3/0/7/130738803/sejeguvaramivuzavuv.pdfIn PDF document text
    • http://files.cle-automazioni.com/uploads/1/3/0/8/130873869/litetozifozose.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/1/0430/0803/2922/files/filurobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1682/0635/files/82449420319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/kutojor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0265/0014/files/66654864951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9832/5399/files/voxubelep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1133/2503/files/taniborasoxixovekurivav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/guxejobuvadobakekilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8765/1235/files/concept_of_integrated_rural_development.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 2

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_off000097cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97CB 5616 bytes
SHA-256: 318aba668834821ce73090f276e55d361582335225297677c8c1d26f24d352bf
font_01_sfnt_off0000aadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAADF 12204 bytes
SHA-256: 0f7aaf19ea056d7bb6eddc13ef2aef02ab03559d87b42fb8df024ee5bdab753d

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