Malicious PDF — malware analysis report

Static analysis result for SHA-256 b148ab2031d1e5e4…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 14:24:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68f2a149f1dd0225b091ca97fe0e4e75 SHA-1: 7ce568c6d77aae6094d3e30709706cc2771def80 SHA-256: b148ab2031d1e5e465cd1bb0d569e3a008d2f02bdaaa8f2ae3104c88201c1e2d
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to sheet music and the PDF's creation tool, suggesting a lure to disguise the malicious intent. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a secondary malicious site.

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=titanium+alto+sax+sheet+music+pdf In PDF document text
    • http://files.doodlebugmusic.com/uploads/1/3/0/9/130969390/71e57cd31.pdfIn PDF document text
    • http://files.radcliffchristianchurch.com/uploads/1/3/1/3/131384359/pomibawukube.pdfIn PDF document text
    • http://gozim.philipsburgbrew.com/uploads/1/3/1/3/131383483/4971814.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/1/0428/6559/0438/files/ielts_recent_actual_test_with_answers_vol_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1504/4252/files/data_science_and_big_data_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/gta_5_online_modding_ps3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8129/3221/files/donuxolutogopigazedol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0750/7606/files/kowokiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/44861487020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/gigaduvaliru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7984/2457/files/sujezikativoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1806/6843/files/luvoporujuburelodifokad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4686/6839/files/92107839297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/19094739726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4548/5725/files/42699335507.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00005cae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAE 5316 bytes
SHA-256: 85be3eb63e1c8d285f77944f0d88b2b02763d0838fcf100e60ee07e00542f587
font_01_sfnt_off00006ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA0 10428 bytes
SHA-256: e8e0f3e924ed6324cc1b0d40e098e52c74437bd5a3c8560f21fce935839b07d3
font_02_sfnt_off00009294.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9294 16120 bytes
SHA-256: 46d9b83afd797048ab251ddfc9ca9a6db44f3280724c231f6a80a061bcc6fc12

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