Malicious PDF — malware analysis report

Static analysis result for SHA-256 c12ea0e4e707d2b0…

MALICIOUS

PDF

73.3 KB Created: 2020-08-09 19:26:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f98829bf8b27c5dcf7eb5228c45893a4 SHA-1: 51ade4692e25e64cec4e218dd4f2914b2ed59edf SHA-256: c12ea0e4e707d2b0dafc16a789176e391140b835706e1dbe96ca9f41894becd6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves luring users to click on these links, which likely lead to phishing sites or malware downloads. No scripts were extracted, limiting the analysis of direct payload execution.

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=catalog+schneider+pdf In PDF document text
    • http://roputujur.ligonierhighlandgames.org/uploads/1/3/0/7/130775350/c397f9368401a71.pdfIn PDF document text
    • http://files.pro-can.org/uploads/1/3/0/7/130738821/gefimi_ridedizoxog.pdfIn PDF document text
    • http://files.garyscollision.com/uploads/1/3/0/7/130738956/33efbba7.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/1/0437/5671/6183/files/98509708743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/23204758948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4043/9446/files/vopopebuzuduj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0890/7688/files/el_minimalismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9849/5389/files/where_are_borderlands_2_save_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/ejemplo_de_calaveras_literarias.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/53289912599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4873/9740/files/68000462639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9595/6386/files/39675994901.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 3

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_off0000d65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD65D 5320 bytes
SHA-256: d2c7bcadf64c979b26a50d8ded46feb87b2bd9c6978cd9db1db66f9fe4adef97
font_01_sfnt_off0000e869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE869 15600 bytes
SHA-256: b5b1b693e3bb1eeec47359df398c5ac9eddeaec10240e8ce3131c8897868f220

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