Malicious PDF — malware analysis report

Static analysis result for SHA-256 a47aa8aca90e98cf…

MALICIOUS

PDF

33.1 KB Created: 2020-08-19 01:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e543c692a1440edeb13dff43eb607ad SHA-1: 41d851d9cbdee284f817e0149388afcbad704159 SHA-256: a47aa8aca90e98cfa2d5aa67025fa973c8ce1f727537fb6a3fe54bb4337e5645
194 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com', identified as a malicious redirector. This URL is presented within the document body, disguised as a link to sheet music, suggesting a social engineering lure. The presence of numerous other PDF links, many pointing to Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true destination. No scripts were extracted, and the document body itself is heavily obfuscated, but the primary malicious intent is clear from the redirector URL.

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.com/pify?keyword=pink+panther+bb+clarinet+sheet+music In PDF document text
    • http://files.issl.space/uploads/1/3/0/7/130776561/vetifijus.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/1/0434/3303/3877/files/aqa_a_level_economics_revision_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0825/8211/files/list_of_sports_and_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/revenge_minecraft_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/5348/9832/files/mugopabin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/4133/0076/files/sixajigukavezoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/mufedokufizima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1842/8326/files/public_policy_in_canada_miljan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2010/7428/files/simple_autobiography_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/43032469002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/anamnesis_veterinaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1062/9532/files/duwalarorinakise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9002/5375/files/convert_to_word_desktop_software_for_pc_registration_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7587/0613/files/jixit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1995/2550/files/fiwavelobezikij.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
🗂 Part of campaign: issl.space 3 samples

Related samples 7

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_off000045c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45C2 5380 bytes
SHA-256: f25fd0e9ebee4f8a2d6e02b42c531701759ce64c3bdba4ad2f239e8979982cd2
font_01_sfnt_off000057ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57CE 9276 bytes
SHA-256: 176cd94daa51d04c614ca50b9304c25173819f730460ff794b256c22d90041aa

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