Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b91d0a00ea0f3b2…

MALICIOUS

PDF

54.2 KB Created: 2020-08-01 05:23:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 463fbe108fa277974d9ae78c0e7a7e41 SHA-1: 0818151ec8dc05711faf02ddde289118b6c2eab6 SHA-256: 9b91d0a00ea0f3b256dfe656f4a81a2cb5abbea001221cb6b4cb2268fbed8902
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=kalphite+queen+osrs+guide'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one being to a Shopify domain. The document body, though heavily obfuscated, contains the same malicious URL and a benign Shopify URL, reinforcing the lure. The primary intent appears to be directing users 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.ru/pify?keyword=kalphite+queen+osrs+guide In PDF document text
    • http://files.highergroundbackpacking.com/uploads/1/3/0/7/130738620/b23fe0a7fc62.pdfIn PDF document text
    • http://files.portstanleyartguild.com/uploads/1/3/1/4/131437987/vedasizepop.pdfIn PDF document text
    • http://files.sylviakeita.com/uploads/1/3/2/6/132680827/1745ecb057eb9fa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9541/5189/files/40741564729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/40720335390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5658/7174/files/nj_driving_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7853/3791/files/fokibidajupafutumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/666949399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3732/6502/files/annexure_1_pdf_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9385/files/92899402056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/74224713292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6946/3959/files/wavaduzumuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6068/1109/files/veweg.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
    • http://www.gnu.org/licenses/gpl.htmlIn 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_off00007ffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FFE 5316 bytes
SHA-256: a67c8c8687d0a02a8ef445003cdfb89ac099d4a2fa6dbd113c0d0a81908be859
font_01_sfnt_off000091fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91FD 6592 bytes
SHA-256: 5481159af128b6a122f8b79f85ed6e4b84eafbcea87a27d4f324a603df24a15d
font_02_sfnt_off0000a386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA386 12792 bytes
SHA-256: 81cd5996bc27bbaab647d8c1c2993cb7fc9053ef9887e51671ebb60972833b3c

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