Malicious PDF — malware analysis report

Static analysis result for SHA-256 883574c34ad026d4…

MALICIOUS

PDF

48.6 KB Created: 2020-08-03 09:53:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9892ae7ab2904ee189aa87a0ce87a395 SHA-1: e4b0a568e077b9e32d0437bb525272ea04a33a01 SHA-256: 883574c34ad026d462a25b5768ada45a560210244db544e368f89cbc00ea7765
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a malicious domain, masquerading as a legitimate airline check-in service. The heuristic firings indicate the PDF is a malicious redirector and part of a link farm, likely designed for phishing or malware distribution. 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.cc/pify?keyword=southwest+airlines+check+in+online In PDF document text
    • http://files.blackdovecreative.com/uploads/1/3/0/9/130969061/karelilexege_dotigumi_muxaxorok.pdfIn PDF document text
    • http://files.alzglassandiron.com/uploads/1/3/1/8/131872238/muludusi.pdfIn PDF document text
    • http://files.txstudentcivics.org/uploads/1/3/1/8/131857041/3271080.pdfIn PDF document text
    • http://files.dchudphotography.com/uploads/1/3/0/9/130969247/fajumevemipebig.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/1/0433/8617/5651/files/multiples_of_58.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8152/2599/files/nidedixavibukirupopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2295/8248/files/xijixor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6877/4814/files/26326995945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4132/4184/files/tewazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6974/files/fotaxukaselasoxegagoparo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5018/files/23323804503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/98528054535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0515/files/45756763108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6345/1560/files/xisinufeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2712/8735/files/wakaveke.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_off00007fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEE 5148 bytes
SHA-256: a6771b9b5379371dcd325dd2436ac1591d87fe0d3291ea386b5e1238d612f254
font_01_sfnt_off0000917b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x917B 10480 bytes
SHA-256: 76ab9a287aa58de969404d91d1902d205ca64fd308cd10017547dc3c39f19b67

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