Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc30b2569bbe8b58…

MALICIOUS

PDF

40.6 KB Created: 2020-08-22 16:31:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f0a5601127c2b29c556572916478dd6 SHA-1: 63d6098d238b6919538a6e7e48a08a2d434fea3d SHA-256: bc30b2569bbe8b5843a4d8b010d2b1e261c8004330759574991fae60bae5f23f
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a heuristic identifying it as a PDF link farm. One of the primary links directs to a known malicious redirector service, 'ttraff.cc', which is likely used to obscure the final destination of the attack. The presence of numerous links, many hosted on Shopify, suggests an attempt to broaden the attack surface or distribute malicious content through a seemingly legitimate platform. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact nature of the payload.

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=ipso+facto+reforms+construction In PDF document text
    • http://rafogi.jclvision.com/uploads/1/3/0/7/130739826/desazisotegisorow.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/1/0427/8625/9100/files/gidokulajanelixubem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/13088891395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/madden_for_switch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0122/5114/files/20192310327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1486/5575/files/ibps_banking_awareness_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1983/7346/files/58836116516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4299/4336/files/brooker_biology_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/meez_hack_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6343/4654/files/57325007038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8201/5129/files/vodumijekedod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/takaxogagapopafiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/python_beginners_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7875/files/jixolekexuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/hemoptysis_guidelines_chest.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 1

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_off000062cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CF 5064 bytes
SHA-256: b8947f7762e56922175680b77142479faae8711fea7a6db383ca00762ac9e734
font_01_sfnt_off000073f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73F2 9868 bytes
SHA-256: 77118714879be6ab65de011f17add39316f86745e030af1db73c283e6d8a5803

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