Malicious PDF — malware analysis report

Static analysis result for SHA-256 decccb132bd4580b…

MALICIOUS

PDF

70.4 KB Created: 2020-08-21 11:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b23a1c64bed46158ed067552a4400007 SHA-1: e1bd441d244b480c6953ade39f7107e1cedfa97e SHA-256: decccb132bd4580b472142dfa4b0815c8bd6f5e1890975948ad19f5e102decd7
202 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised with a "Amory wars comics" theme and urgency language. It also functions as a link farm, embedding numerous external PDF links, many hosted on Shopify. The primary malicious URL identified is https://ttraff.ru/pify?keyword=amory+wars+comics, which is flagged as a known malicious redirector. The document body is heavily obfuscated, but the presence of the malicious URL and the link farm heuristic strongly indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=amory+wars+comics In PDF document text
    • http://files.platonicadventures.com/uploads/1/3/0/8/130874655/laxolo_mobiridixeb_raroperas.pdfIn PDF document text
    • http://surag.roanokecommunityco-op.org/uploads/1/3/1/3/131383309/02a9566f0757ce8.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/1/0429/5573/5193/files/42533616572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/81618271508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3135/5807/files/pemozil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/8541817763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8424/2325/files/sales_incentive_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8306/2678/files/97669184954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5965/8398/files/74769603259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/vozoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/php._ini_file_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7339/5106/files/developmental_biology_gilbert_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0631/0046/files/bamaxesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1872/2216/files/intermediate_financial_management_12th_edition_free.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_off0000d9a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A1 5096 bytes
SHA-256: b2e52ca73fc217546a9aee4d16659c7e2639897b48411d830aae25a3cdce1c27
font_01_sfnt_off0000eaed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAED 9956 bytes
SHA-256: 3393a9288e638d0b2cc5c714945275b5d29d159dac62bf8f27fe3131da13db36

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