Malicious PDF — malware analysis report

Static analysis result for SHA-256 1155cac434aeb516…

MALICIOUS

PDF

37.5 KB Created: 2020-08-26 02:03:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ec484c7e0422ff23272467da3a31e93 SHA-1: 87a1ca78d3bb29068c9cdb7701ce35f65508a250 SHA-256: 1155cac434aeb5164cb29aa4c86d15fc8822f27414e8f36fba46bbd03c973506
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including a critical redirector link to 'ttraff.cc' which is associated with malicious activity. The document body and heuristics indicate a lure for downloading MP3 files, likely a phishing or scam attempt. The presence of numerous external PDF links suggests a link farm used to distribute malicious content or improve SEO for malicious sites.

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=o+ri+chiraiya+song+download+mp3 In PDF document text
    • http://files.transferoutpnes.com/uploads/1/3/1/4/131438460/bamoremeguzi-bagam-dokelirol-bowik.pdfIn PDF document text
    • http://joton.olgabaptist.org/uploads/1/3/0/7/130775565/xekanotudabefinapesu.pdfIn PDF document text
    • http://files.carolinasiscebs.com/uploads/1/3/2/8/132815787/8fb3f38782.pdfIn PDF document text
    • http://files.adrianahammond.com/uploads/1/3/1/4/131452846/1074787.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/1/0440/0631/0046/files/zubozojet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3899/0485/files/kabipokaritiruduwunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5661/7877/files/raxurabedip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/25432176275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3361/6803/files/17356906796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9272/files/61640545068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/50230072707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/maths_textbook_for_class_5_maharashtra_board.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4877/9426/files/day_trading_on_robinhood.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_off000047dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47DD 5872 bytes
SHA-256: a2762dda893c6654b83ea5e5fe5dc4fcced45058c00945bec94f339b7a10bd3a
font_01_sfnt_off00005bbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBF 14640 bytes
SHA-256: 65fa7adf51b4a1b4ef6a7de3c8d10646b3bcfa5a04234860bb1cabb90a4741b9

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