Malicious PDF — malware analysis report

Static analysis result for SHA-256 783a60e4108424bc…

MALICIOUS

PDF

46.0 KB Created: 2020-08-08 15:22:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90313049f6af8e14fe50109bf6e16578 SHA-1: fbdd9d0b443f62db085207d372b48c59a42f3183 SHA-256: 783a60e4108424bcc3c93a52bb3b7bfc16b24bc84b99a58d8a085fa8d14b0270
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that leads to this redirector, suggesting a phishing or scam attempt to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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=adinkra+symbols+list+pdf In PDF document text
    • http://files.breesepickel.com/uploads/1/3/0/7/130775363/feginegobirilab-fitigode.pdfIn PDF document text
    • http://files.cathhowe.com/uploads/1/3/1/4/131453636/69c200.pdfIn PDF document text
    • http://files.strips.ie/uploads/1/3/1/4/131438499/pevuterunuv_dofubetimirupu.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/1/0430/1661/8145/files/93359771439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2518/5442/files/pastel_yellow_hex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5824/9384/files/63107446470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/87154444168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9508/9571/files/65259168525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9028/7517/files/simply_keto_cookbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4460/0999/files/test_of_statistics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/chemotherapy_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/wigesepiruxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6358/0574/files/79876279662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/10096876781.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E4 5152 bytes
SHA-256: 5fbda9b646ed943e4ca7c82181837ecf88e845d1dc33669a4707abd8d1e4384c
font_01_sfnt_off00007a41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A41 10080 bytes
SHA-256: bfb6dad6266cfd846fa3cc96b47bf6c6be33a9facf7c2b7aa87a0eb173f03ffe
font_02_sfnt_off00009cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CCE 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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