Malicious PDF — malware analysis report

Static analysis result for SHA-256 07f34ab270efe526…

MALICIOUS

PDF

43.2 KB Created: 2020-08-25 02:17:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55966425f70611bc23b56c40eb39fd8d SHA-1: 43b81984e788e64c2dbbfd8b527d0532da822005 SHA-256: 07f34ab270efe526deb43fc911ed9cba0e62e83dc500f00fd28edac28f458d07
162 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains multiple heuristic firings indicating malicious redirector links and a link farm. The primary malicious IOC is the redirector URL https://ttraff.ru/pify?keyword=chudiyan+song++2019, which is likely used to direct users to further malicious content. The document body, though heavily obfuscated, contains this URL and numerous other PDF links, suggesting a tactic to manipulate search engine results or distribute multiple malicious files.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=chudiyan+song++2019 In PDF document text
    • http://files.majedveysel.com/uploads/1/3/2/6/132681066/5d055.pdfIn PDF document text
    • http://files.hiswarehouse.net/uploads/1/3/1/3/131383493/5897217.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/1/0435/0381/2773/files/96670452533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1823/0688/files/53931650530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7955/7529/files/31699002986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/furujaxawuxemozagefov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/funny_anchoring_script_for_freshers_party.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2930/6272/files/cell_membrane_transport.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/fipezafonud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2385/8850/files/radikuzekafixidas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1910/7480/files/game_capsa_susun_indoplay_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1509/3924/files/85581334959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/text_in_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3389/2763/files/45277647423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/6419/0105/files/jeton.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5424 5448 bytes
SHA-256: 84ada281c8fb38ce1d1c1111b7136278d8d3dce683405f0b5a766d50fa2ff14f
font_01_sfnt_off000066b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B2 10556 bytes
SHA-256: ac1945941db70e62ff6103200e058f2568f3a5486b6e3f1ceefd9024b66ede5e
font_02_sfnt_off00008aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AED 16164 bytes
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1

Open this report in the interactive analyzer, or submit your own file for analysis.