Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba3a5e2317e3e7d…

MALICIOUS

PDF

44.2 KB Created: 2020-08-23 23:56:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36a0981281410baff8adf6fdbe607761 SHA-1: 0ca619724577588e51b00671909b1fad6e0def30 SHA-256: aba3a5e2317e3e7d7277f855bd2bcf3f5bff129d7f6d66b0b396a8dcbf5e48f1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm with numerous links to external PDFs, many of which are hosted on Shopify. The primary redirector URL, ttraff.com, is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and suggests a lure related to 'crossword answer for use delaying tactics'. This indicates a phishing or scam attempt to redirect users to malicious content.

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=crossword+answer+for+use+delaying+tactics In PDF document text
    • http://files.nk-opatija.com/uploads/1/3/1/3/131381078/d57c26a215948a.pdfIn PDF document text
    • http://files.motionforlifept.com/uploads/1/3/0/7/130739062/32c82075ea4.pdfIn PDF document text
    • http://files.theartplacestudio.com/uploads/1/3/0/7/130775590/6383720.pdfIn PDF document text
    • http://files.highlanderteach.com/uploads/1/3/1/3/131384300/80917a322283.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/1/0434/5685/6230/files/alan_turing_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8125/9421/files/67458543514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0341/2633/files/june_barcarolle_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/85903227408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/70245823733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/gafekudexiwikebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/63655515254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/kaxuwutusage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0849/9618/files/pelebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/belip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0762/2817/files/60970960541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8948/5221/files/oxidative_stress_alzheimer_disease_pdf.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 4

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_off00006f0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0F 5288 bytes
SHA-256: 96417ab287c884df812b96edcaa4198a701330e12a858c39710b75d91b3f4951
font_01_sfnt_off00008136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8136 10144 bytes
SHA-256: c58261430805395c5fdf6d4afe571640eb21ff1c5053b8c3677093a9ec80e223

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