Malicious PDF — malware analysis report

Static analysis result for SHA-256 844614f3a94d1e0f…

MALICIOUS

PDF

38.4 KB Created: 2020-07-27 09:08:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b256d7deea40810599e5589db44da3c SHA-1: c28d1f8ea4475042c743a9c0fc48f2ed6656be86 SHA-256: 844614f3a94d1e0f335ecdf812a0524f7ba3fdfd8ff8dae7bdf40a69b6a7bc9a
194 Risk Score

Malware Insights

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

The PDF contains multiple links pointing to redirector infrastructure, specifically 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, appears to reference 'Facebook ads manager latest apk', suggesting a phishing lure. The presence of numerous PDF links, many leading to Shopify domains, indicates a link farm designed to obscure the malicious destination.

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=facebook+ads+manager+latest+apk In PDF document text
    • http://files.brooksidevt.net/uploads/1/3/2/6/132696018/samum_nijige.pdfIn PDF document text
    • http://files.athenstherapyco-op.com/uploads/1/3/1/4/131453124/5286966.pdfIn PDF document text
    • http://files.northarlingtoncert.org/uploads/1/3/0/7/130775309/9982665.pdfIn PDF document text
    • http://files.adamsbiz.com/uploads/1/3/1/4/131452735/kilunupaxivejanedu.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/1/0434/6108/3288/files/pelojomivowawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0471/4404/files/33317174769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1344/7584/files/memokaradibon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/jofakef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/vewizenogiwoxukel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8920/6174/files/53629651386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7803/3313/files/56190158159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/66275391960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39086675177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8882/8829/files/98289000928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/mujoxagozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vewurobafug.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_off00005872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5872 5292 bytes
SHA-256: 62c42c553710948b425d49459878fd7f808efe838c4f1e4012d81cbf5c0df7d4
font_01_sfnt_off00006a4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4A 9928 bytes
SHA-256: 3f4a174dc8430f6d0fdf8b216909fd5f29ae33d7ca6d95231c05df94d660f5e3

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