Malicious PDF — malware analysis report

Static analysis result for SHA-256 70fe36b8a7c2731a…

MALICIOUS

PDF

57.1 KB Created: 2020-07-25 19:51:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5f57f6cb7de2b0ea55605d74f381f9db SHA-1: 016eb6f7ec0c2775f11d4f1cade5452a65a30b9d SHA-256: 70fe36b8a7c2731aa682f5f3812917068d5b9dd78c369c33122fd505e2e31606
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to an SEO redirector infrastructure, which is a common tactic for distributing malware or phishing content. The primary redirector URL, 'https://ttraff.ru/pify?keyword=blade+2+apk+data+rexdl', suggests a lure related to downloading game data or applications. While no scripts were directly extracted, the PDF structure and embedded links strongly indicate a malicious intent to redirect users to harmful 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.ru/pify?keyword=blade+2+apk+data+rexdl In PDF document text
    • http://files.sanpedroleasing.com/uploads/1/3/2/6/132682142/tefewiwatuje.pdfIn PDF document text
    • http://files.patchworkstories.net/uploads/1/3/1/1/131164198/kunewixegaxiv_jogud_jozovax_senojezak.pdfIn PDF document text
    • http://files.theclevelandhike.com/uploads/1/3/2/7/132712514/67f66.pdfIn PDF document text
    • http://files.svsoar.org/uploads/1/3/2/3/132303045/5869439.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/1/0431/5460/4198/files/9783301654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4008/6935/files/sogibofawakonerej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2973/2248/files/lerunexapasevomexewewowib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0325/files/romoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4196/2649/files/talonovuwiralabolarozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4925/5066/files/tizutizisotimixumawarize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/furupokexopaxabisovijuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/jekarolojupofiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/5577529669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4740/3168/files/welax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4460/8932/files/43233127261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/27183041534.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7875 4612 bytes
SHA-256: 172c8ceef96d168779946e419f99482b8be511ea04b0cbdf7cc8bc9a0be9d4bb
font_01_sfnt_off00008829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8829 4728 bytes
SHA-256: 3082de07fd256f04422ade5aef3bcaac390ee31e132b1638a78b9a6adcc083b9
font_02_sfnt_off00009a46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A46 11852 bytes
SHA-256: a917f83e3175e856bad6533fd8ed7d130073417db64bbc7278d12c43aa5a8efc
font_03_sfnt_off0000c099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC099 16388 bytes
SHA-256: d758c63dfff36cae03f42bae3bafd8a88df29cfa819cc463c23abab30afaad21