Malicious PDF — malware analysis report

Static analysis result for SHA-256 80fdbe8c18b22156…

MALICIOUS

PDF

40.2 KB Created: 2020-08-15 02:08:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c989637dab4b14e82c4209fa0804cdb1 SHA-1: 8e19dd960bb63f5611a8aeae56f55dd16a3ffb0d SHA-256: 80fdbe8c18b22156a483722585fc3d6e96838c9a6cd8de626497ec2c578bbbff
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL designed to lure users with the promise of free service manuals. The ML classifier strongly indicates maliciousness, and the redirector link is flagged as malicious. The document body, though corrupted, contains the lure text and the malicious URL, suggesting an attempt to drive traffic to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.com/wb?keyword=electronics%20service%20manuals%20online%20free In PDF document text
    • http://files.applied-magnetics-shop.com/uploads/1/3/1/4/131406173/fd9b52c7a.pdfIn PDF document text
    • http://kimetepu.uscgminf.com/uploads/1/3/0/8/130813533/navisasudale_nuxojedujenuzu_pilakaxoti_fupufe.pdfIn PDF document text
    • http://files.brazeldazzlestudioz.com/uploads/1/3/0/9/130969200/dalekuk-faburenoteje.pdfIn PDF document text
    • http://vigise.mrdickson.net/uploads/1/3/0/9/130968921/6baad464.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/1/0429/2853/7753/files/89755807424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7973/files/70668863987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/49436210303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4364/2792/files/wexitizibojofuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/idle_town_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68513135127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2313/files/carta_de_apresentao_de_empresa_para_empresa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72905654063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1514/3587/files/92757929429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/8501/5714/files/neurologia_veterinaria_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/68545090756.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 8

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_off00005f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F8C 5044 bytes
SHA-256: 5803ab07afc82c641d327795fba08617b3dd0781093267735125a29ad9704ea9
font_01_sfnt_off000070a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A4 10604 bytes
SHA-256: 91ea48162f5d4b691a872eabf17ea008c7c4b8a68863d5bd6f7fbb997560b190

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