Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0b2a596ef3374e8…

MALICIOUS

PDF

40.8 KB Created: 2020-08-20 13:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c84c01aba793a4aa409be2914f31397 SHA-1: 2a8bdf807a230e8584dc68131b745ba9f6e195c7 SHA-256: c0b2a596ef3374e8ad16e2895d2c64c727676aeb9a5519637cbd514d7a9b50d9
194 Risk Score

Malware Insights

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

The PDF contains a link farm with numerous embedded URLs, including a critical redirector link to 'ttraff.ru'. This indicates a likely attempt to lure users to malicious sites. The ML classifier also strongly flagged this PDF as malicious. The document body appears to be garbled but contains the suspicious URL.

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=burger+king+coupons+pdf+bis+juni In PDF document text
    • http://sojilo.moralish.com/uploads/1/3/1/0/131070581/6711357.pdfIn PDF document text
    • http://files.marlonkellyloans.com/uploads/1/3/2/7/132740595/ditefugepubetaseju.pdfIn PDF document text
    • http://rawemum.dalycitytowing.org/uploads/1/3/0/7/130775778/3667076.pdfIn PDF document text
    • http://files.odenhouse.org/uploads/1/3/1/3/131379510/39b3fcf98cc.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/1/0431/4752/6305/files/my_time_at_portia_nitre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4147/2159/files/ridupewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8868/3932/files/spoken_english_lessons_in_sinhala_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4399/files/donodimulexoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/63428997475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5120/3225/files/11410428930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vojinanekarab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6140/files/zixofirem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7473/1685/files/51645561652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/xaxonorazare.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 5

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_off0000612e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612E 5412 bytes
SHA-256: 731e303b7ed7bd36d63e48695c8cd7e88ac1287c35f06b9c75884357ed4c0d7d
font_01_sfnt_off000073aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73AA 10128 bytes
SHA-256: 747b631ecddc9dc6fb4a196aae6d9f346fed42533f7981bd249af3d5eab8f012

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