Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa7622f7f8dafa58…

MALICIOUS

PDF

69.4 KB Created: 2020-08-04 17:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d63a334444a03c037d3f6c671f70ad8e SHA-1: f71fced40895a27c82ccda1b53fafcb3e1499038 SHA-256: fa7622f7f8dafa58729e5bdb01017f991f4be677881c862325525a52ec7074df
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.cc/pify?keyword=biomass+energy+resources+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to trick the user into visiting this malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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=biomass+energy+resources+pdf In PDF document text
    • http://files.bellbrightaussies.com/uploads/1/3/1/4/131406520/38c16b6c.pdfIn PDF document text
    • http://files.jwandersonjr.com/uploads/1/3/0/7/130776573/29923aebb2.pdfIn PDF document text
    • http://ronexosef.kohadoge.com.au/uploads/1/3/1/8/131857419/tolix.pdfIn PDF document text
    • http://files.tacomaartistlofts.com/uploads/1/3/1/6/131636586/vizomilum.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/1/0431/4365/9677/files/sitedotarebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1185/0918/files/49202901561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7669/files/rujobesuzewuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8238/9406/files/biomass_energy_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/apc_smart_ups_srt_5000va_230v.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7840/9639/files/nuluzemub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/98150620254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/54662425940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8984/4641/files/70424661325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/62424192442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/lodafugexamuxanonut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9861/0589/files/tobaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/8074925936.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC824 5596 bytes
SHA-256: d3f7525126f3f2f65d36d854b6d8612a3705cf982fa84ba280ea17bed13bfc34
font_01_sfnt_off0000db1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1A 14600 bytes
SHA-256: 059191cf6c8dbff264957bbeca7cfa79de635559c8f4ea4f8c1ef62684de5804

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