Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e5fcb1670a81b9c…

MALICIOUS

PDF

39.2 KB Created: 2020-08-10 03:37:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f18d0721256013bc91b39b4ac08d5292 SHA-1: e1437295bd02702677975de2592e758fed6b407f SHA-256: 5e5fcb1670a81b9c39ab40f5beb0a6d1cad1b1884144ae87e8f349de06161515
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at `https://ttraff.cc/pify?keyword=pathology+mcq+with+answers+pdf`. This redirector is likely used to obscure the final destination, which could be a phishing page or a malware download. The document body and heuristics indicate a lure for free study materials, a common tactic for distributing malicious content.

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=pathology+mcq+with+answers+pdf In PDF document text
    • http://files.huron-athletics.org/uploads/1/3/1/3/131382395/wisipuz.pdfIn PDF document text
    • http://files.vibrantabasolutions.com/uploads/1/3/1/4/131482962/fugamoliboxavuso.pdfIn PDF document text
    • http://files.victoria13gla.ca/uploads/1/3/1/0/131070722/4c117c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7872/0414/files/42946068368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/pizivilobavewavuwas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5915/8938/files/70312043280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5670/8254/files/holt_physical_science_interactive_textbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6645/6224/files/40373452662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/pifodugepopimapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9345/3987/files/cervical_cancer_statistics_worldwide_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/37088975503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4645/2899/files/65609245904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/22687946918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5388/3293/files/42290689539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/89378565270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/capitales_del_mundo_por_continentes.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D1B 5680 bytes
SHA-256: d925291c1ba598ec24f86c71c851536321b26ed2d9c2aece90347756cda6f420
font_01_sfnt_off0000604e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604E 9820 bytes
SHA-256: 7ce40300eeba3f26661a41b48198f99981767e32a23ff36d06336a73ab0469a0
font_02_sfnt_off000081d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D8 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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