Malicious PDF — malware analysis report

Static analysis result for SHA-256 37060cf04039b4c3…

MALICIOUS

PDF

39.6 KB Created: 2020-07-30 22:09:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66a184f7bea8d5fe6b19c92ba994e70c SHA-1: 33d1a02581427aaec54a8b8af74764ce10a5fe0c SHA-256: 37060cf04039b4c389ca1970707c6fce8d1bc077724b3943b533c78d51146e60
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=learn+python+3+the+hard+way+pdf+2020', which is likely used to funnel victims to further malicious sites. The document body, though heavily obfuscated, suggests a lure related to Python programming books.

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=learn+python+3+the+hard+way+pdf+2020 In PDF document text
    • http://files.spiritmountainroasting.com/uploads/1/3/2/6/132695828/fojuvobezufogab.pdfIn PDF document text
    • http://files.glassmanneuropsychology.com/uploads/1/3/0/7/130775126/2563537.pdfIn PDF document text
    • http://files.ckemployeeportal.com/uploads/1/3/1/3/131383943/4276487.pdfIn PDF document text
    • http://files.oakleafenergy.com/uploads/1/3/0/9/130969761/juvatagovamuneworapa.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/1/0429/6019/1651/files/73956248170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/folajas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2452/3169/files/76369342882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/robisujegamifowor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/labasuzupukonilim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/87457179811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/20734034623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8706/0375/files/lodofizir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2909/3800/files/belidifubizobozuxanivax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/gomazumojusapakafapur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/susokeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7188/0870/files/jenibugofowij.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 4

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_off00005df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF4 5232 bytes
SHA-256: ffba1e7c114f5898b9f6975411f80d743d7eacf6ff46fc90f067cbad51f924af
font_01_sfnt_off00006fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCB 9796 bytes
SHA-256: fc1c10ce438328eda2ece826edbfd64e95762f0264d0b5b94b5650278e1b0b82

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