Malicious PDF — malware analysis report

Static analysis result for SHA-256 29bf4dc1b48e607e…

MALICIOUS

PDF

50.8 KB Created: 2020-08-01 08:27:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e80399ef4e8429c5c86ae54fcdb6af05 SHA-1: daa6c9545a1179718dca60842b39cf7b532ca1bf SHA-256: 29bf4dc1b48e607edc1ac6b41489101e2fa7249339854bb4655398c96d904540
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the text '5x5 sliding puzzle solver' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking and visibility for the malicious content.

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=5x5+sliding+puzzle+solver In PDF document text
    • http://files.alpsed.org/uploads/1/3/0/7/130776003/dagivigof.pdfIn PDF document text
    • http://files.norstarindustries.ca/uploads/1/3/2/7/132710565/6924308.pdfIn PDF document text
    • http://files.soulfoodstudios.org/uploads/1/3/1/6/131637218/6067227.pdfIn PDF document text
    • http://files.nativenerds.org/uploads/1/3/1/3/131384070/zatet-gewuvovelepalod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5093/3156/files/46214121305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9304/0029/files/kigoduzifogedowopegal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/mogumitifugexenolinowelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0134/7226/files/vozurufovarupavesipad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/bemokibemulozovabenun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8982/0838/files/lux_1500_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gobobuxewinunegurugita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/mojepuzuzapurupajixil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84113106953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6943/2230/files/poweramp_music_player_trial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8201/5129/files/79656769530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/potajezezelof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/58327252801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6007/5427/files/8202975959.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7332 4924 bytes
SHA-256: 9f18c08d7263850ea20013aad3c175bf4ee65e19d7cfa6b349d8497a629806f0
font_01_sfnt_off000083f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F5 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00008c83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C83 10120 bytes
SHA-256: 1ad3ce37b72671ef451a6d9e7b0e59d28eb5acd8411cf2f813aa2c91afe58d16
font_03_sfnt_off0000af2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF2F 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e