Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cb0bcbe8af07b00…

MALICIOUS

PDF

37.7 KB Created: 2020-08-14 16:19:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 22036e57f152eca4a52ac3d15e6c0a91 SHA-1: 6686d88fc23bd4122c831d864b1274a276c3cd53 SHA-256: 0cb0bcbe8af07b00ea6fb3506b4c18206c8980ca853073d67106a3f14bef6b40
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one pointing to a known malicious redirector at `https://ttraff.ru/pify?keyword=fischer+fire+foam+data+sheet`. This redirector is likely used to obscure the final malicious destination. The presence of numerous other links, many pointing to benign Shopify URLs, suggests a link farm or SEO manipulation tactic to increase visibility and lure victims. 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.ru/pify?keyword=fischer+fire+foam+data+sheet In PDF document text
    • http://files.missionalworship.com/uploads/1/3/2/3/132302764/0aa1000e9.pdfIn PDF document text
    • http://ropuve.thegallerysociety.com/uploads/1/3/0/7/130775666/8072914.pdfIn PDF document text
    • http://fajisa.alabamahunterjumpers.org/uploads/1/3/1/4/131453384/gulesa.pdfIn PDF document text
    • http://files.fearlesscounselingservices.com/uploads/1/3/0/7/130775102/7459c3f28636.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/1/0436/3055/9390/files/e_banking_wikipedia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/finneas_break_my_heart_again_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3550/9415/files/rozamilen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4103/6200/files/jailbreak_tool_apple_tv_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6865/2697/files/cao_1_2020_brokerage_fee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/zojasapudagonegugofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/lasojat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5865/8469/files/79680664955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2328/6951/files/base64_encode_file_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0574/7095/files/govadokuret.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49D1 4864 bytes
SHA-256: a17fb4a80d886d08dd0c342222295c43ef296282572ea04b6b0e0cf35ad02f5d
font_01_sfnt_off00005a52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A52 9832 bytes
SHA-256: 5f15b532104d81600ae49792e80c6683e087b542a20bcaa738388c4f27f1ae23
font_02_sfnt_off00007bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BDA 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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