Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a9149419c8b70ca…

MALICIOUS

PDF

42.7 KB Created: 2020-08-22 20:40:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4cbb1aea23c082d5caff19a098072c6 SHA-1: 2b71daf2e32d425c82e11d44d7f099c7ba9732ea SHA-256: 0a9149419c8b70ca35e83cc24dc9a6e07b62d754095b771a6df7ece271a218ca
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to SEO redirectors, with one prominent link leading to known malicious infrastructure. The document body text and heuristics indicate a lure for a game download, likely a phishing attempt to redirect users to malicious sites. No scripts were extracted, but the PDF structure and embedded links strongly suggest a malicious redirection campaign.

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=angry+birds+transformers+games+online In PDF document text
    • http://files.armiesoftn.org/uploads/1/3/1/0/131070890/vuvitegigufukasaruz.pdfIn PDF document text
    • http://files.legalmadeeasy.net/uploads/1/3/0/7/130739916/8d0add8e.pdfIn PDF document text
    • http://files.ketg.org/uploads/1/3/1/6/131637257/vovazulufefugik_nugumujuwuzem.pdfIn PDF document text
    • http://files.nourishingacres.com/uploads/1/3/1/4/131453215/zefadodukenoju.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/1/0439/0138/6920/files/jizuvomefipodoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29318048561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7880/7705/files/jimaxuxabimebozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3368/8226/files/avid_pro_tools_s3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4670/6088/files/javascript_blob_to_base64.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2092/7644/files/55117255309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/rizikizolobizotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3820/2273/files/prezi_like_powerpoint_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1025/1176/files/66884554368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/91818119347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1466/7934/files/91017363350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/dividing_monomials_worksheet_answers_8-_2.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_off00006742.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6742 5460 bytes
SHA-256: 1aef10aee6997469bbfdf01eda096afecc3570b6cebd0bd10b8d38ed07407b2c
font_01_sfnt_off000079ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79BA 10608 bytes
SHA-256: 8e7b0a652c1c4d7bad5f39146cb551db22ba15ec914802120553c60d82974771

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