Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d1ab97f05060915…

MALICIOUS

PDF

37.0 KB Created: 2020-08-01 16:13:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99b2f06c084755c4311d68776126291b SHA-1: e5068da3e617762f2bd928bdbfd75fea1ecd8f6a SHA-256: 5d1ab97f05060915fb5ab6bad2fc74ece5dded6dab2c168f1ba08f838ba610dd
194 Risk Score

Malware Insights

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

This PDF document contains a lure disguised as "Spongebob campfire song lyrics" which embeds multiple links. One of these links, https://ttraff.ru/pify?keyword=spongebob+campfire+song+lyrics, is identified as a malicious redirector. The document's structure and embedded links suggest it is part of a link farm or phishing campaign designed to redirect users to malicious sites. No scripts were extracted, but the presence of the redirector and the link farm heuristic indicate a high likelihood of 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=spongebob+campfire+song+lyrics In PDF document text
    • http://files.redskinscheerleaderalumni.org/uploads/1/3/2/7/132740623/1171790.pdfIn PDF document text
    • http://files.theservantmessengers.org/uploads/1/3/0/7/130740127/7993960.pdfIn PDF document text
    • http://files.claretfarm.com/uploads/1/3/0/7/130776111/3147238.pdfIn PDF document text
    • http://files.songyingfang.com/uploads/1/3/1/4/131437680/80572d523f.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/1/0431/6338/6017/files/35265056763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/rei_backpacking_checklist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4551/0568/files/86965906818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78649322563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9650/6521/files/91071563902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6007/5427/files/wuziditojol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2312/2084/files/62699320536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/42634223419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8051/5745/files/8286436809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0634/5895/files/selupakorirefaxaket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5597/1480/files/powanapaluneni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/lejuxus.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 4

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_off00004c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C2F 5680 bytes
SHA-256: 621849b48ff8e94a2a7bb91056c9d5c944441960bfa6ae1bc864f0260891389f
font_01_sfnt_off00005f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F80 12480 bytes
SHA-256: 56d23912d07c49a52dd25eefd282575818f7d8a38d7da00b207781b03e360ef4

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