Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09c0f04c058ea56…

MALICIOUS

PDF

39.6 KB Created: 2020-08-20 20:06:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea35b0e372a6844dc4a36d4571b6d5a2 SHA-1: 0d9b145cd706f52c4eae0b093de298f5a0094cd1 SHA-256: f09c0f04c058ea56ec44e572a318ddac93b149b322704eb00fbd115c68f4b786
162 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to website templates and includes the malicious URL. This suggests a phishing or social engineering attempt to direct users to malicious infrastructure.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=free+template++for+website+wordpress In PDF document text
    • http://files.bridgerbirthing.com/uploads/1/3/1/3/131384070/gomobexetopitaxe.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/1/0440/1774/6070/files/12222953850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/12432936418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6154/2045/files/barijunodebezurilapifuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/tijikirupafitefolawud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7609/1032/files/critical_theory_in_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/zunavuzokonikobux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9362/files/44669091949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0650/0769/files/kuvil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1773/files/fefekuturetasimigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5860/9819/files/96769771442.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 2

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_off00005c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C87 5376 bytes
SHA-256: df0b79f3f8f538b88070245e494031c18ebb5819d2b4cd421e593d88326adc49
font_01_sfnt_off00006ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC4 10276 bytes
SHA-256: ffc8451aad9f6d0411db43865d7ac1bf2b1d1bf170e0f12fd4fdea65be0b7452

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