Malicious PDF — malware analysis report

Static analysis result for SHA-256 80784878bad0a5d8…

MALICIOUS

PDF

45.6 KB Created: 2020-08-23 05:48:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5edfbece75b8fcc4d86c9d7f59e7e2b7 SHA-1: 6afb60a5c0bc284113de27e82677ffff27177bb6 SHA-256: 80784878bad0a5d8583acbcb2929eed86b76d3292195a6ae04c33c96fe11c7f9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including a critical redirector link to 'https://ttraff.ru/pify?keyword=cfmeu+wage+sheets', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to 'wage sheets' and the malicious URL, reinforcing the lure. 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.ru/pify?keyword=cfmeu+wage+sheets In PDF document text
    • http://files.cariboucafe.com/uploads/1/3/0/9/130969065/tepobaf-wesufumu-loxodexabuf-danazenawe.pdfIn PDF document text
    • http://files.niwotptac.com/uploads/1/3/2/3/132302768/8803648.pdfIn PDF document text
    • http://files.marriedmarks.com/uploads/1/3/2/8/132816158/wawezanuz-titun-resuta-ponupax.pdfIn PDF document text
    • http://wotonimij.relationships4all.com/uploads/1/3/2/3/132303027/rezefaroxemenolupaso.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/1/0428/9835/8432/files/61411835552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0553/2569/files/bread_bakery_business_plan_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4391/2854/files/9893670135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zutazalurofesavasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/51868995246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/75361421584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6140/3802/files/fawidevovisab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4072/6427/files/antonin_artaud_poesie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/uber_brand_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/waweg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/vimobujogoxenipirakanur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1275/1523/files/faguwisixotaran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/braiding_sweetgrass_kimmerer.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6746 4784 bytes
SHA-256: 1f03a5992bcd3e09786d8b7c8852b51ce3a060a7ad6160ce7ce9819b74e8dc50
font_01_sfnt_off000077a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A4 10440 bytes
SHA-256: d5b9a131a530e2f7e529c3aeff7943447179b2480f57d3d71293dfec9e911df6
font_02_sfnt_off00009b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B41 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34