Malicious PDF — malware analysis report

Static analysis result for SHA-256 7121869522fc0725…

MALICIOUS

PDF

44.7 KB Created: 2020-07-31 22:33:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de3be3025d2fbe9aa1c3a63e9e36e99e SHA-1: 38feb6729135032fb05367ac896da16983247abb SHA-256: 7121869522fc07250220bc1f28858339e0b77c91740fe45996bd8a94dd193a87
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) and a link farm of other PDFs. The ML classifier strongly indicated maliciousness. The presence of multiple PDF links suggests an attempt to distribute further malicious content or conduct phishing by overwhelming the user with choices.

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=git+ir+download In PDF document text
    • http://files.atthehealersnook.com/uploads/1/3/2/6/132683165/1457746.pdfIn PDF document text
    • http://files.mstaylorgoestowashington.com/uploads/1/3/0/7/130740264/vetabuvijovujen.pdfIn PDF document text
    • http://files.bateshetzel.com/uploads/1/3/0/9/130969663/fasazigebenu.pdfIn PDF document text
    • http://files.hauntedfort.com/uploads/1/3/1/4/131453733/214323.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/1/0432/7804/1244/files/tezubevid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8341/3142/files/nonikolubadafivopupovevem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/zivorofuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8757/5705/files/35542262171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/benafolelad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5656/1318/files/tapupafuroradidofob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tepumesuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2470/files/75165778433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6571/9449/files/guziwow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/nesuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/tutumulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/gaxetatasonudebofefaluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/82947206345.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C80 5588 bytes
SHA-256: 1ca9bb7b9d39cabcbcf2fffb52097202e0c62c91356b70e30550c554b568f822
font_01_sfnt_off0000700c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x700C 4764 bytes
SHA-256: 26e06fcd7e03424a5c0e7db28c8f85ace531bfb9f5b240c800a554c493d2e480
font_02_sfnt_off00008060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8060 11000 bytes
SHA-256: 9be5fcfbc8eb084b25148fb3eee18ab1bd90e62339607faf291fe4a7abf1492c

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