Malicious PDF — malware analysis report

Static analysis result for SHA-256 126723814bd80dc6…

MALICIOUS

PDF

40.9 KB Created: 2020-08-04 09:28:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e977bfba705c1eb5d5731d389f89b125 SHA-1: ce127c5f089dff1c3071d741252b7810434cd0d6 SHA-256: 126723814bd80dc65609d7644b981756e3af09149e369735a6ecc84d5c6ca07c
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for SEO-based lures. The document body, though heavily obfuscated, contains text suggesting a syllabus, which is likely a pretext to trick users into clicking the malicious link. The ML classifier strongly indicates maliciousness, and the presence of multiple links to potentially malicious or SEO-farmed content supports this.

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.com/pify?keyword=bsc+physical+science+computer+science+syllabus+du+pdf In PDF document text
    • http://files.crankinblackbox.com/uploads/1/3/0/7/130775391/7771d8380.pdfIn PDF document text
    • http://files.internationalradioartresearchgroup.org/uploads/1/3/2/7/132712333/teduwujuxowix.pdfIn PDF document text
    • http://files.mygreencirclerealty.com/uploads/1/3/2/7/132740547/sexego.pdfIn PDF document text
    • http://files.livingabundantlyministries.org/uploads/1/3/1/3/131384495/a70749846.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/1/0428/7548/6367/files/50726699853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2642/1672/files/harris_county_e_permits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2379/2285/files/zunovavuganexez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/rozevavinemuvelonagipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/brahma_purana_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/kelomoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4750/0448/files/26681428935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1887/8114/files/dosux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7115/8949/files/60215731147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/24159037398.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 6

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_off00005fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDF 5688 bytes
SHA-256: b8be7f8d3bc4cb4073f1222d38ac624b23670e341db906adbb37472e6cfc4688
font_01_sfnt_off00007315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7315 10464 bytes
SHA-256: f6412c0519c658aa91752fcbd106a54c8e1a40eafcc648c6409b1cd6a1002a98

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