Malicious PDF — malware analysis report

Static analysis result for SHA-256 a50549ce85851dd9…

MALICIOUS

PDF

42.6 KB Created: 2020-08-25 15:19:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83611fdeb4ee3b8fdb3af27273be7821 SHA-1: b256313a92dd568566ea3f261c9d2656fcdd8b55 SHA-256: a50549ce85851dd9046dd8811e1c2a230f1b7a81c1cd189bbe1a8805baf3d58a
194 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior through a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious redirector infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic reveals a large number of embedded external links, suggesting an attempt to manipulate search engine results or create a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=atom+bomb+picture+ing, which is likely used to redirect users to further malicious content. The document body contains obfuscated text and references to the malicious URL and benign Shopify links.

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.cc/pify?keyword=atom+bomb+picture+ing In PDF document text
    • http://jozazug.frostedblairwear.com/uploads/1/3/2/7/132712615/jofiremu.pdfIn PDF document text
    • http://files.perwangel.co.uk/uploads/1/3/0/7/130775977/sibomuliworip.pdfIn PDF document text
    • http://tamire.myhillchurch.com/uploads/1/3/2/7/132740763/vopewo-rebal-betuzolov.pdfIn PDF document text
    • http://files.bc-ipse.org/uploads/1/3/1/3/131381612/14d4dd9fcebb05.pdfIn PDF document text
    • http://files.xinchengqiu.com/uploads/1/3/2/6/132682142/2034277.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/1/0432/0516/5216/files/79422244677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0895/8362/files/dosumojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7705/6165/files/wuzuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2797/9678/files/zidalefelodisekozutofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5400/files/jetiwulezudepotuworot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0715/6128/files/scope_and_sequence_template_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6254/8887/files/lokmat_epaper_osmanabad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4637/8404/files/lexis_audio_editor_apk_mirror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9688/1814/files/gexafitetevuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0369/0660/files/dekefewuwagagutuwubuda.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000697d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697D 4964 bytes
SHA-256: 021a80e909bae6d916eb2c7ddb5dbe3f3d3839c492d7f9bba2f180b1e801c1f1
font_01_sfnt_off00007a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4D 10236 bytes
SHA-256: be96b869197758028ab7542fc267ec02654a425e140a469f51854747be79c27c

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