Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c63e6772a360d7d…

MALICIOUS

PDF

49.9 KB Created: 2020-08-23 08:49:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b84691c8baf0bfbe2652c5c54d5dcdf6 SHA-1: 663ddb7bea84d01a3458466435c2fd66141fb4db SHA-256: 2c63e6772a360d7deda0af7b03c774d65bbf80167db887824229ee6f182100a7
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with multiple links pointing to Shopify domains and a primary malicious redirector at ttraff.ru. The ML classifier strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, but the presence of the malicious redirector URL suggests a phishing or malware delivery attempt.

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=ddlc+poems+guide In PDF document text
    • http://files.dondawson.com/uploads/1/3/2/7/132712268/wujotapomimevafiwer.pdfIn PDF document text
    • http://vegaromux.braterpainting.com/uploads/1/3/1/0/131070786/07444dcf95.pdfIn PDF document text
    • http://novep.magicandfun.co/uploads/1/3/1/8/131856374/750099a3e768.pdfIn PDF document text
    • http://files.zakariyakhunji.com/uploads/1/3/1/6/131606331/5729441.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/1/0428/1804/4063/files/miforafuzudutejotopozeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6166/5192/files/911699249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0256/7588/files/viresupawazunisezidusis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6462/2246/files/tx_lotto_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/medarovadujagowurevasote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5274/4356/files/arrow_spine_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7121/7565/files/73525505180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5290/0250/files/54099446915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/0709/8262/files/57380567235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8548/7525/files/green_sand_casting_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/retilolo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A16 3496 bytes
SHA-256: 38d4395ccb39bfd88a9a693a745e31900e84a0150e6b92a7f4f9b2cf912c00a0
font_01_sfnt_off0000867d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x867D 5084 bytes
SHA-256: 3d7d1ea539e517b345deba7fc55e63a31df73a440466358902b6a73b2c93eb56
font_02_sfnt_off000097c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97C5 10088 bytes
SHA-256: d7839bf2b9d3e3f656902fe308a897faed5e522e1d205459da620c208103407b

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