Malicious PDF — malware analysis report

Static analysis result for SHA-256 12b02faac6c9f777…

MALICIOUS

PDF

58.3 KB Created: 2020-08-24 18:40:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2278f3ed35d4e4c30bf4ab522eda36df SHA-1: db2449bc4960b09908a63cfb62e6359c0689b637 SHA-256: 12b02faac6c9f777d2eed5973d321d2006d26bfc7a5206d89ce228ccf134eeef
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, with a high ML classifier score. The embedded URL points to 'ttraff.ru', a known malicious redirector, which is likely used to funnel victims to a phishing or malware-hosting site. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent.

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=delhi+akshardham+photo In PDF document text
    • http://sagerigil.globalstakesconsulting.com/uploads/1/3/1/4/131407315/9810325.pdfIn PDF document text
    • http://files.goodstuffprimaryresources.com/uploads/1/3/2/6/132681204/lamumolop.pdfIn PDF document text
    • http://betivug.robinsonsisland-rles.com/uploads/1/3/1/4/131408899/ximetokaxufaxu-jozaku-zerikatem.pdfIn PDF document text
    • http://files.hbcatherinewriting.com/uploads/1/3/1/8/131871585/xogijabutabalubavo.pdfIn PDF document text
    • http://files.earthfirstfarm.com/uploads/1/3/2/7/132740533/1345810.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/1/0435/6187/7663/files/piteneparodetuliro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0581/2633/files/jutesosegufusimuzuxivigij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3899/6642/files/juwaxavoboruragozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4415/0165/files/ccvcc_word_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/bilixafigunaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4986/1791/files/alphabetical_and_numeric_series_reasoning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1047/4663/files/33474709538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/wuxenebesuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/lipowejozojigizixekopegul.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_off0000a708.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA708 5260 bytes
SHA-256: a135ab72109be51bb438d099d9835bf5b360ef2edc4d9f21acce730430912e6e
font_01_sfnt_off0000b8c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8C5 10572 bytes
SHA-256: eba1d9ad9275f0182b4c80bb5ad83f700977231929b1ce7e730b967d45d60488

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