Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dff7c04a8664513…

MALICIOUS

PDF

44.8 KB Created: 2020-08-07 00:08:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f8e5e38275fdc5e715c799ee880ef8c6 SHA-1: 7fa301d84ef6a825fcbac9ed79c3003d7be1e7e0 SHA-256: 7dff7c04a86645137abb296df80dcb94adb066ea685c41c9f5daf6eda41f59d6
194 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, specifically `https://ttraff.com/pify?keyword=life+skills+counseling+pdf`, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, indicating an attempt to lure users to malicious infrastructure. The presence of many links to external PDFs suggests a link farm for SEO manipulation, likely to improve the ranking of the malicious redirector. No scripts were extracted from this sample.

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=life+skills+counseling+pdf In PDF document text
    • http://files.heistawards.com/uploads/1/3/1/3/131380687/8356328.pdfIn PDF document text
    • http://files.thecarolinasportsdistrict.org/uploads/1/3/1/3/131383426/famakixat.pdfIn PDF document text
    • http://files.dingoden.net/uploads/1/3/2/6/132683264/64c6eebb5.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/1/0432/3137/9618/files/2717849214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9456/3229/files/history_of_baghdad_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/bujulubamijepixajut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/sopotak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/baloxurebivive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2930/6263/files/gaxafopowezabuliri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/puletazuvujononugevoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5937/9357/files/bokebafaguluwuzewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/54150461009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5244/4320/files/difference_between_attitude_and_behaviour.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1339/7913/files/53347741166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6213/1869/files/92653227883.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 3

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_off00007321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7321 5024 bytes
SHA-256: d29b0533e8ddc0350129ea41785fa4cf5ad26b85b839951ed7a53dc19fbc4abb
font_01_sfnt_off0000845e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x845E 9840 bytes
SHA-256: e13f464f2fa7bddae90fe4282dc0ddcbb4f5a5b3ae4dec9ca244a6b2c3d590a3

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