Malicious PDF — malware analysis report

Static analysis result for SHA-256 0687b26833e5454b…

MALICIOUS

PDF

45.2 KB Created: 2020-08-03 14:17:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2de660bc20994e3ddd68c3fa0dcbf837 SHA-1: 33565da960c93101ea3dc0990e641ecaff4b8bc5 SHA-256: 0687b26833e5454bd3496d7cdb03636cbf53986f04af9ac040f7ddae20cc91db
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The presence of multiple SEO-optimized PDF links suggests an attempt to distribute malicious content widely. The ML classifier also strongly indicated maliciousness.

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=death+of+archaeological+theory+pdf In PDF document text
    • http://files.augustahbcualumni.com/uploads/1/3/1/4/131453302/dokusemiri-ralikimixepez-tomobivalur.pdfIn PDF document text
    • http://files.destinedforsuccessnow.com/uploads/1/3/1/3/131384306/bizuliwavozazema.pdfIn PDF document text
    • http://files.matej-cerne.com/uploads/1/3/1/4/131483138/80515.pdfIn 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/1/0434/1219/3438/files/senisixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4817/9611/files/30864103073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/cookie_clicker_grimoire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7873/3224/files/behavioral_finance_and_wealth_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3059/4204/files/13108248944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6022/3387/files/kerawitalematevezemofaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/75268576001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1898/5370/files/78450445960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/xoponamajimegoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2262/8502/files/rurosunelepaderinamulano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9671/6952/files/ladamikuwuvosunimixofobej.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000657f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657F 5020 bytes
SHA-256: 3c2485240a9f2ad21828f4e495cb4472e2f2353c1c7abeeaa1aec49e5387c920
font_01_sfnt_off000076bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BB 10348 bytes
SHA-256: 3a58b26b26a2085679f588bbe48167205c296ba4b98853859c8e033b21276b65
font_02_sfnt_off00009a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A04 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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