Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ec0d46facfaadc…

MALICIOUS

PDF

42.2 KB Created: 2020-08-04 09:53:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 38571d70798dc0a669f8cbcffa2de5d6 SHA-1: 221427191de376a87af4a1cd7dbdbb97c6b5d4c6 SHA-256: 01ec0d46facfaadcdd13c95e41bffc6bf0d8b7d3e6700d0176109e8cb64cdd26
194 Risk Score

Malware Insights

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

The PDF contains a link farm of SEO-optimized PDF links, many of which point to a redirector at 'ttraff.cc'. This redirector is used to obscure the final destination of the download, likely a malicious payload disguised as educational material. The ML classifier strongly indicated maliciousness, and the presence of numerous external links suggests a phishing or malware distribution scheme.

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=chemistry+punjab+textbook+for+class+11+pdf In PDF document text
    • http://files.thebarmyfox.com/uploads/1/3/0/7/130775888/wogumopetanuxix-ribagonisu-mobojadan.pdfIn PDF document text
    • http://files.outlandscorgis.com/uploads/1/3/0/7/130738836/5871964.pdfIn PDF document text
    • http://files.360defensemartialarts.com/uploads/1/3/1/4/131454620/pejosifix.pdfIn PDF document text
    • http://files.qualityfolk.com/uploads/1/3/2/8/132814138/5092812.pdfIn PDF document text
    • http://files.wildgroundalabama.org/uploads/1/3/0/7/130738562/lepipemoxizi-tigirujisi-xiwedenuvub-nutinesolipakot.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/1/0428/0591/9903/files/57636424819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/medovudapiminexoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6910/3528/files/87240146832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/42152435777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7074/9861/files/davopusosuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/43384082945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3800/6686/files/notuzonox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2418/files/55925252222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/rifiwivekiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/tobaxexomij.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FF 5800 bytes
SHA-256: 23dd0cafcdd5c76a99647bfa2f7f1d15b4314645197ab9dbb8239a42dd93fb74
font_01_sfnt_off000079a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A0 10028 bytes
SHA-256: 094b41b6f36bf26c03a0f76af0e3d4f713e434530d1b9e3a23e1ef202ef41251

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