Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bc4c029e1b682c0…

MALICIOUS

PDF

34.5 KB Created: 2020-08-25 20:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e904daf02b5038ebe6a9cc6100fd814 SHA-1: e11d1b43156207bfb76db68223fc1747a898643f SHA-256: 6bc4c029e1b682c0aa504e401f6ab60e29a55be82e0b683ebe58be0f9d4ce5f0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=moon+lover+ep+16, which is likely used to redirect users to a malicious site. The document also exhibits characteristics of a PDF link farm, attempting to distribute numerous links, many of which point to benign Shopify-hosted PDFs, but the presence of the malicious redirector is the primary concern.

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=moon+lover+ep+16 In PDF document text
    • http://files.anniepercussion.com/uploads/1/3/2/7/132740321/disatibe.pdfIn PDF document text
    • http://fopom.bridgeportcf.org/uploads/1/3/1/8/131871787/1802088.pdfIn PDF document text
    • http://sapomokuw.church-in-the-park.com/uploads/1/3/0/7/130739654/waburewupemigux.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/1/0433/9158/2357/files/william_lee_rand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1761/7057/files/72166059473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/jidus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/garizolevoveluza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/brain_teaser_worksheet_for_grade_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8381/7375/files/vujadupozovasamonituzukuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0818/files/95110382970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9980/7126/files/guided_science_readers_level_a.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5143/3627/files/xajulon.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ED5 4080 bytes
SHA-256: 82b14559c40fbacbfdbbd0e6e24e1935119f6fa2ff2eeee76989a0ef94ba1d0a
font_01_sfnt_off00004d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D54 4696 bytes
SHA-256: 3e2c84e1b64927a4340453b3b8b26716f608a1e93a8878bab962b22266233d20
font_02_sfnt_off00005d75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D75 8904 bytes
SHA-256: 4cc8ec7af1ff9ea8435a952ed096984c07366d805da7689e11339d8346e315c5

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