Malicious PDF — malware analysis report

Static analysis result for SHA-256 1263318c43070a4d…

MALICIOUS

PDF

42.1 KB Created: 2020-07-31 21:11:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4315ffa6f8d9431ea80b4546c96da452 SHA-1: bc98ffc9bb3edc3138030f8e82d13d76b54ddd01 SHA-256: 1263318c43070a4d33e9546768c3ca26d5fdb96b2ee774f9d64da2ada234b1b1
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector and a reference to an "exe has stopped working meme", suggesting a social engineering lure. The ML classifier strongly indicates maliciousness, and the presence of numerous PDF links points towards a link farm or phishing attempt.

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=exe+has+stopped+working+meme In PDF document text
    • http://files.hushupclothing.com/uploads/1/3/1/1/131164202/5522390.pdfIn PDF document text
    • http://files.aslightmistakeinthecode.com/uploads/1/3/2/8/132815206/feseba.pdfIn PDF document text
    • http://files.cultivateyourwellness.org/uploads/1/3/2/6/132681664/mavaxa_zogiwezile_sabunevajuzag.pdfIn PDF document text
    • http://files.sherwoodoregonlawncare.com/uploads/1/3/0/7/130775017/8257033.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/1/0431/4827/9957/files/mepodamepun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3782/4926/files/lemod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0655/6320/files/68627932496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1884/4322/files/67289301741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0106/9220/files/43011244409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1888/7068/files/navikufebowam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8688/6552/files/xaxaborelidozoxawuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0482/9602/files/71611068049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0586/9208/files/45528688623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7211/1260/files/xagusivijivemosexe.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 7

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_off000065db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DB 5520 bytes
SHA-256: 4f8b7a30e1d33076951c781264ba6d83e294f633f86cb26093628580d2cd2e03
font_01_sfnt_off00007896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7896 10328 bytes
SHA-256: c799576fd9937397066dc30b1a899fb1932e838f845849a22c142facb820945a

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