Malicious PDF — malware analysis report

Static analysis result for SHA-256 aac924373d41c900…

MALICIOUS

PDF

42.1 KB Created: 2020-08-09 11:17:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 08e1ea8bbd32d82ed2ab8bad1e6acf97 SHA-1: 6c88c012b387bbbd333e0ff380f2c63d2252e725 SHA-256: aac924373d41c9006b68be2e004c7c0e5223facac8618efb64462a1e84e8b530
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a document about a nitrogen generation plant. The file also contains a large number of external links, many pointing to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicated maliciousness, and the PDF structure itself is suspicious due to duplicate object bodies.

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=nitrogen+generation+plant+pdf In PDF document text
    • http://files.dennisdotywebsite.com/uploads/1/3/1/8/131857631/dogewabogusu_fuduwijujoxes_kijegulafifiz.pdfIn PDF document text
    • http://files.apoiesis.com/uploads/1/3/0/7/130775510/48fb18eb31.pdfIn PDF document text
    • http://files.migueljuliobeauty.com/uploads/1/3/2/6/132681647/rivolosekatesuxozibo.pdfIn PDF document text
    • http://files.bellmereonrichards.com/uploads/1/3/1/6/131606762/9393965.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/1/0434/8719/9394/files/vonesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/gamokejomodal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7973/7237/files/xanekowipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1519/8104/files/57589366210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7732/7265/files/19121011801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/misajononodubet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/40229411351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/zidatulowigaxevavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/gatotew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1826/3464/files/rebizesapisejadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4081/5774/files/99413985192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1258/5634/files/calendario_anual_2020_para_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0740/9308/files/unlimited_power_by_anthony_robbins.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_off000067e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E5 5000 bytes
SHA-256: 43bb33107b9fcd73696908ce17b3d709867791540b0134476e9197676ca3d988
font_01_sfnt_off00007900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7900 10100 bytes
SHA-256: 3beae17e6da0bf96849758a4140b826f4c2192cdbcb0a357485f0e6ae4cdb7b6

Open this report in the interactive analyzer, or submit your own file for analysis.