Malicious PDF — malware analysis report

Static analysis result for SHA-256 40a802c1f6e527bb…

MALICIOUS

PDF

47.0 KB Created: 2020-08-25 08:06:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e16f01fa12577065d92d59418ff2b48 SHA-1: 7456b892ec91a6742faa3731b08dfcb0374a4631 SHA-256: 40a802c1f6e527bb6e79226f68ba53f75fef00889602be469928e5238fd68903
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, which is indicative of a link farm. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to redirect the user to malicious content or further stages of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=airplay+android+tv+sony In PDF document text
    • http://files.karolinabohn.com/uploads/1/3/2/7/132712000/lixovuxakof.pdfIn PDF document text
    • http://xutozixar.fourseasonsbuilders.biz/uploads/1/3/2/6/132696194/paduteturigupol_jexajinumojig.pdfIn PDF document text
    • http://files.patkearnsmusic.com/uploads/1/3/2/7/132710783/parig-sobababox-ripakomomal.pdfIn PDF document text
    • http://files.martinmchughmarketing.com/uploads/1/3/1/3/131383775/5847563.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1787/0239/files/9894076969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2289/0646/files/ahram_org_eg_index.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1809/0653/files/39963896107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67264452348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/cardiac_rehabilitation_exercise_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2771/files/sigezizamedumuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/kuxorepelitagusitumajop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4880/3227/files/29966821027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3587/6776/files/atlas_d_anatomie_humaine.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C40 1640 bytes
SHA-256: 42664a653ea4d2dbc66ced7fed087fda09eb0433b8e72c09cb8078be9843b187
font_01_sfnt_off00006457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6457 2828 bytes
SHA-256: eec2311198495a4bc353016469730966835d49679daeed18a98faa9ab15954d4
font_02_sfnt_off00006e61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E61 4772 bytes
SHA-256: adf2fc6a40fa07049ae975e47df472c99fa3b35398ee3dd726c25b6c7f153e09
font_03_sfnt_off00007e95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E95 9948 bytes
SHA-256: 13a978c572252d3c0f721dd2ad4fe94a6598e0a90d108dab9f4f5a3b6ba37ee5
font_04_sfnt_off0000a0b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0B1 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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