Malicious PDF — malware analysis report

Static analysis result for SHA-256 a48b2b44789fbb90…

MALICIOUS

PDF

42.1 KB Created: 2020-08-10 17:30:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fae02e6501c57d3a82c9541ca5769f4a SHA-1: 0fcf3892dbf17c0d53b6c6ff6056a5c8440da9a1 SHA-256: a48b2b44789fbb900c691fe48e5f864cb216da8753dad193bb75a297f54ed738
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body and heuristic firings indicate an advance-fee scam lure, likely intended to trick the user into downloading a second-stage payload. The primary malicious URL is https://ttraff.com/pify?keyword=java+jdk+7+kompletan+priru%25C4%258Dnik+pdf+download.

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.com/pify?keyword=java+jdk+7+kompletan+priru%25C4%258Dnik+pdf+download In PDF document text
    • http://files.christopherlauto.com/uploads/1/3/1/4/131483214/jinubodilolokuz.pdfIn PDF document text
    • http://files.fclcpreschool.org/uploads/1/3/0/7/130775180/zogaxazopapoxe.pdfIn PDF document text
    • http://mejezep.hawleylutheran.org/uploads/1/3/2/8/132814930/wukekevatezudup-lopelafosos.pdfIn PDF document text
    • http://wivujiko.radmanusa.com/uploads/1/3/1/6/131607163/cb64a0189ceb.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/1/0431/1734/6976/files/aahe_manohar_tari_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4237/1741/files/dupopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6873/6166/files/20715880994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8425/1285/files/lolesafilis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/2661862667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1913/1285/files/64504911972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/nosunegilufimeniwari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/67184781245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1024/5286/files/67124483541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dosoxuwananeworatimuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/visexiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/fujixuvixifozel.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 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_off00006396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6396 5512 bytes
SHA-256: 263987db277183cfd3d90cbf7cab8c0164242404944bcce0ae156086f6d3de38
font_01_sfnt_off0000766f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766F 10316 bytes
SHA-256: c8348a66867f94de2806150dcaf81c6e06755d489ec283e35071e30f6674dd6b

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