Malicious PDF — malware analysis report

Static analysis result for SHA-256 55e072d7d6a5a28e…

MALICIOUS

PDF

51.8 KB Created: 2020-08-23 19:49:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f2a0a816ac88d2299d19b7736377113d SHA-1: 07bce3ff7716ac42c9270f6ee87e00ce75615790 SHA-256: 55e072d7d6a5a28e81887ea507c34e5d42513245f0390fc70d0c2155af58679f
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=free+business+consulting+html+templates'. This URL is part of a link farm designed to attract search engine traffic. The document body also contains a visual download lure, reinforcing the social engineering aspect. The primary intent appears to be redirecting users to malicious content through a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=free+business+consulting+html+templates In PDF document text
    • http://lozapokes.crispincampbell.com/uploads/1/3/1/3/131380213/4863887.pdfIn PDF document text
    • http://files.genevievemariedavis.com/uploads/1/3/2/6/132681976/nokug-xulesabuwugates-virajiboxuzibu-vuzos.pdfIn PDF document text
    • http://zazosu.dragonflyspiritualspa.com.au/uploads/1/3/0/8/130814088/b72c6e11ec171.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/1/0434/8110/4541/files/spontaneous_bacterial_peritonitis_treatment_nice_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6682/6656/files/bisutalalaxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4206/9918/files/gibadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/jugoteladagedir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/nudaziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9325/3526/files/angielski_gramatyka_edgard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/37290768925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/8652/9948/files/airlift_performance_controller_mount.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/sisoderifakek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0254/7611/files/fun_speaking_activities_for_adults.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5647/1959/files/sutexavurukazawozodadoga.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000823c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x823C 5444 bytes
SHA-256: 2a986b6ef0404b1878a6d2f9fb80a44ca302d4d91f2f5670f1cbf8a10c4e5721
font_01_sfnt_off00009482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9482 2268 bytes
SHA-256: 2b17894289ef4ac549ca5ccbfe538e6ebde94701791c0542cba9a71f2d67f349
font_02_sfnt_off00009e95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E95 10364 bytes
SHA-256: a4b25e3ffbbecbd9bd9d4d81cf21aa00b7b9a62d790e6cc96716c885569d8c7f