Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d6f157771925235…

MALICIOUS

PDF

64.3 KB Created: 2020-08-11 13:18:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48e0b392fb32aafab3526069241d3133 SHA-1: efb2813d76b532f37a44fa384324e79118773733 SHA-256: 7d6f15777192523517f96640952d1aca977f1e9005ca3055b6bb29f03c876e7c
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 identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for free downloads. The presence of a link farm and ML classification further support its malicious nature, likely serving as a downloader or phishing lure.

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=benim+hocam+tyt+t%25C3%25BCrk%25C3%25A7e+pdf In PDF document text
    • http://novif.carolsullivanperkins.com/uploads/1/3/0/7/130739267/zukibuda_nikarup_juvonabepu.pdfIn PDF document text
    • http://files.magneticislandyoga.com.au/uploads/1/3/2/6/132680867/2724559.pdfIn PDF document text
    • http://files.acubyhoma.com/uploads/1/3/0/8/130814085/kiditejunamixag.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/1/0429/7188/9815/files/nusaboxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/begiwitoreg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wiwatubaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/98306794104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6236/1245/files/c_queue_class.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4829/files/41811647694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/37240515803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/sins_of_the_father_oblivion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1740/3549/files/nuletomemanizabuvuduf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/10615555127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/30993835232.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
🗂 Part of campaign: carriagehousecinema.org 5 samples

Related samples 5

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_off0000aefd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEFD 5704 bytes
SHA-256: a672d40cc3a07a67cee776f7223916ef9daa74cae80b8663797ecb2f815082bb
font_01_sfnt_off0000c1be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1BE 16992 bytes
SHA-256: a10c29f177c5570508b269438af58b2ef467508e848b9aa43e3b9d8e6c66501c

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