Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5eec657bf424b4c…

MALICIOUS

PDF

36.9 KB Created: 2020-08-18 20:09:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bfa788015830678bce7076416c0aad3b SHA-1: f07aff881c897eec40cefed391037990f2db3f5e SHA-256: e5eec657bf424b4c776315e6aad0862c17eed7fd7ff92d6b7c5c2d605b8234cc
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically to 'https://ttraff.cc/pify?keyword=forno+ariston+fb51a+manuale'. This technique is often used to obscure the final malicious destination and evade detection. The ML classifier strongly indicated maliciousness, and the presence of numerous external PDF links further supports a malicious intent, likely for phishing or malware distribution.

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=forno+ariston+fb51a+manuale In PDF document text
    • http://files.powells5014.com/uploads/1/3/1/4/131406960/muxuruwusitagopo.pdfIn PDF document text
    • http://files.daniellelbeattymoodyphd.org/uploads/1/3/1/3/131379510/9791494.pdfIn PDF document text
    • http://files.breastfeedingmybaby.com/uploads/1/3/2/3/132303147/7233d.pdfIn PDF document text
    • http://files.maddysmusicstudio.com/uploads/1/3/2/6/132695574/5015111.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/1/0429/3296/1443/files/47218633986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0841/6168/files/fevovobujunefedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6491/files/samakod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/97430432560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1698/5503/files/sagelinodipolivodiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5399/8487/files/93798488666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/wesezafogokukobaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/string_array_to_int_array.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8067/8553/files/accsap_8_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1849/2824/files/6285122306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7714/files/wexomugowozajomowabod.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52D7 5184 bytes
SHA-256: 5ca0507e2dbffb1b8351faf98ef60458dbed48c59cc0680bab3b28594db23814
font_01_sfnt_off00006467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6467 10104 bytes
SHA-256: f251103c2072e76c35cff84e395d3010ac0a06b69ccf05a8fc1dd33e633b7b7d