Malicious PDF — malware analysis report

Static analysis result for SHA-256 39ade8e52109cba5…

MALICIOUS

PDF

40.1 KB Created: 2020-08-16 22:42:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 864534d548aafad13672b9db858b69c7 SHA-1: 7b81bf421e27964136158d2ff4f1558ec86c95e9 SHA-256: 39ade8e52109cba5298cdde6ac7fd8ae23773c9d14f64e3d4cac9a5f15e263d5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to a critical heuristic firing for a malicious redirector link. It also contains a large number of embedded external links, characteristic of a link farm, with the primary malicious URL being https://ttraff.cc/pify?keyword=barf+si+lyrics. While many linked Shopify URLs are confirmed benign, the presence of the redirector and the sheer volume of links suggest a malicious intent to distribute spam or lead 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.cc/pify?keyword=barf+si+lyrics In PDF document text
    • http://files.mgtowtv.com/uploads/1/3/2/7/132740275/rasemijinutag.pdfIn PDF document text
    • http://lebokoxu.olympiamarines.org/uploads/1/3/1/4/131453206/xobani.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/1/0433/0127/3750/files/the_ascended_masters_light_the_way.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5755/9190/files/virepiduvone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9838/9145/files/pavaziwiranurorakinukive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/63632655467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5300/6494/files/bunulazimurawij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/1269981243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2065/6545/files/vajenoziwelifibebivodid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7831/1318/files/barricades_mysterieuses_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0670/5312/files/clustering_algorithms_in_information_retrieval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6112/0919/files/what_is_binwalk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/fivaxefakiruretit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/95035420881.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 2

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_off000053db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53DB 5024 bytes
SHA-256: cefceb13b9282bdb9acac6bb85ae26069bf87a148db977d40fe1f925610f1d14
font_01_sfnt_off000064ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64FF 14440 bytes
SHA-256: 23c6576143da160a2737f46a191f4133ec1c2e9858e915819f8008baa75820c2

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