Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6fb7b5ef4a974bb…

MALICIOUS

PDF

43.2 KB Created: 2020-08-14 23:03:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: befc431c8b222962875c455840fb928c SHA-1: 039af70d759124cf22c6009780fb01f010440f02 SHA-256: a6fb7b5ef4a974bbb3012fdd23cd5b223e235c2011c4fdccf31f5d4c9e296a78
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com' with a keyword related to Android TV box APKs. It also exhibits a PDF link farm behavior, with numerous links hosted on Shopify. The ML classifier strongly indicates maliciousness. The primary attack pattern involves luring users through a deceptive document body and redirecting them to malicious infrastructure.

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=android+tv+box+apk+malaysia In PDF document text
    • http://files.stbleagues.com/uploads/1/3/0/7/130776489/5f68fabd.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/1/0430/4112/8601/files/88217894536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2953/6668/files/ribazuxatominejefujumaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/jonibuleribib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4165/9797/files/bcom_1st_year_books_in_english_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3955/4727/files/5835013900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/56135862203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1712/3486/files/pumuwexaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54748680829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4547/6762/files/criminal_justice_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/oxford_english_to_bangla_dictionary_apps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0301/8392/files/jidewope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8597/1110/files/pujegenujirojujamekajowat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/310592814.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 3

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_off00006a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A77 5528 bytes
SHA-256: b573cb089b01801234170b20f28ff316e35919c44e7914053cbbf4b3afb6435b
font_01_sfnt_off00007d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2F 10104 bytes
SHA-256: be287ddd90fca7b57381ac3d897ac18688b2d04c013b1413248dec5ad851d4b4

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