Malicious PDF — malware analysis report

Static analysis result for SHA-256 727e9671333fd7b6…

MALICIOUS

PDF

41.1 KB Created: 2020-08-17 02:25:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9848e6bc02ad3d2ed37245656bdf63b2 SHA-1: 3eb7decd27f5aab231c97e0697f43634de3cc7c2 SHA-256: 727e9671333fd7b62ae1860315e9167f86e68252988344f93fb4f151f99b6032
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains a URL that also leads to this redirector. This indicates a phishing or scam attempt designed to lead users to malicious sites under the guise of providing free downloads.

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=aviation+map+apps+android In PDF document text
    • http://files.stayblooming.com/uploads/1/3/1/4/131437174/nexowejozovabob-xelolopowu-kofuvo-kaxafaneka.pdfIn PDF document text
    • http://files.arcadecoffee2go.com/uploads/1/3/0/7/130740483/4292509.pdfIn PDF document text
    • http://dolem.vizadvantage.com/uploads/1/3/1/4/131482995/zixanosur.pdfIn PDF document text
    • http://files.annapicklesharvey.com/uploads/1/3/1/4/131438427/6022432.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/1/0437/0405/8010/files/tamil_school_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7790/3263/files/romunoxatiboparedogim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6916/8021/files/anthony_brown_worth_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/88675909572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/6205320316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/gestion_de_la_cadena_de_suministros_chopra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6487/6444/files/jufexivexofepugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5393/1944/files/selutabuzid.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_off00006334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6334 5120 bytes
SHA-256: 20f26d319452c71d8ce6108fc728ff7f5fc2af539e8c5f49ba42378789372d75
font_01_sfnt_off00007482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7482 10420 bytes
SHA-256: bcbe997647db2a80990cc8cfbe7278ac95b2348b6a3f5b4b6b61e05f175062a1

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