Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bc4f84a344f7a6c…

MALICIOUS

PDF

34.3 KB Created: 2020-08-24 06:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7182c8ef5d9e29c3e960b5b5fae3dea1 SHA-1: a7cd84cb8f03b68554688706aa0c232a5bcf4be7 SHA-256: 2bc4f84a344f7a6cadb3dc923b8ea9cde2db257acafc61697c8ffd70a994ccf3
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=billian+billian+guri+ringtone'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous external PDF links, with the first identified as 'https://cdn.shopify.com/s/files/1/0437/0645/0074/files/23833109039.pdf'. The document body, though heavily obfuscated, also contains the same malicious URL. This suggests the primary purpose is to lure users to malicious sites via a link farm.

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.ru/pify?keyword=billian+billian+guri+ringtone In PDF document text
    • http://files.processfc.com/uploads/1/3/0/7/130738755/e6f223ed31e0c2.pdfIn PDF document text
    • http://files.lynnhainesspiritualmedium.com/uploads/1/3/0/9/130970008/8c2251fce61a.pdfIn PDF document text
    • http://files.keepthomascountybeautiful.org/uploads/1/3/1/3/131379168/gatidedubobage.pdfIn PDF document text
    • http://files.foryourmilitarymarriage.com/uploads/1/3/0/8/130814411/vixolalawedu_gixanewupabov_vojol_nejavagegapel.pdfIn PDF document text
    • http://files.ruralchurchpastorsnetwork.com/uploads/1/3/1/8/131856166/0c07c28fe43.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/1/0437/0645/0074/files/23833109039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8681/5139/files/anonymous_hacker_pic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21086069096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0911/3242/files/sonigibaxudaxenumevob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5067/2026/files/fudenurinezesoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6200/1821/files/labadunogite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0160/8349/files/ronasidojamez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8894/files/zididuwowabalijulureze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9927/files/31246071353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/gugibikatixujovefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5396/files/take_courage_bethel_chords.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_off000049f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49F2 4864 bytes
SHA-256: bf37420a315d5891946698b3f753d4cb23a9450292cb67eaed5373004c98faf1
font_01_sfnt_off00005a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A85 9852 bytes
SHA-256: 17b332da64b6acdcf6e31ce08e1ea037009c1b53e3e88f2ec9d3f292e08b277c

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