Malicious PDF — malware analysis report

Static analysis result for SHA-256 887ef0cc2ac99343…

MALICIOUS

PDF

44.2 KB Created: 2020-09-20 00:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 022074ab795e502cc4b99f75bb2c2a5d SHA-1: 9e24d6b8e586cb3725fe66eda7c9f61728834fb9 SHA-256: 887ef0cc2ac9934376cdde6ec83d5238b26877e2bbd2279995b7e8e6b1c6b97c
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a redirector service (ttraff.cc), indicating a link farm or phishing attempt. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' suggest the document is designed to redirect users to malicious content, likely for phishing or malware delivery.

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/wb?keyword=the%20witcher%20parents%20guide%20game In PDF document text
    • http://files.pasturedpoultryinfo.com/uploads/1/3/1/3/131383541/selogofu.pdfIn PDF document text
    • http://towaj.purebeautyphotography.com/uploads/1/3/1/3/131381679/nimokadozofinoruvil.pdfIn PDF document text
    • http://ruxile.oyezbookstore.com/uploads/1/3/1/8/131872225/xodosejet.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/1/0433/8640/5029/files/training_implementation_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6026/4086/files/factsheet_13b_light_rigid_vehicles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4522/3581/files/saxagupoworotaxisol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4022/6984/files/batman_vs_superman_telugu_hd_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8009/6667/files/arioso_bach_piano_sheet_music_free.pdfIn PDF document text
    • https://25ad4643-93e8-447a-9c14-dc534ef6b0b9.filesusr.com/ugd/b48b60_7bb53193b4744eb4b84ac1016381e03c.pdf?index=trueIn PDF document text
    • https://35028727-ad7b-4a82-ae49-3cb102a7ac97.filesusr.com/ugd/11baf9_935ae6a46560408ab8e254faa2f198b1.pdf?index=trueIn PDF document text
    • https://16c3b29f-0cd6-4038-8389-276e4dbe9184.filesusr.com/ugd/eb6612_658276e4c9d54d94a0a50046a50a02cc.pdf?index=trueIn PDF document text
    • https://21fee0ba-8ef5-439b-949c-47dd56685fc7.filesusr.com/ugd/63f22d_a5400a01a89c4530be2e7614680c725c.pdf?index=trueIn PDF document text
    • https://5f3e6888-3f46-4a94-8855-266aaf66beff.filesusr.com/ugd/b54ff4_e58c78f185044fbb8f2d0af816a31dec.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9159/7214/files/kufikasopidep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7872/7318/files/sheet_street_surgery_fax.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 6

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_off00006ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECC 5496 bytes
SHA-256: b0199e6bad045498cc9543ede8e7ce92a6c7eb2f231c97b3eced66c28acda2d4
font_01_sfnt_off00008165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8165 10172 bytes
SHA-256: 09604777757977d55c2ed505b9bafc2daae12497c83791c4cc52c1cf2d7ab35b

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