Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc1c8b623f2f763…

MALICIOUS

PDF

41.0 KB Created: 2020-09-17 05:22:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 163f1c25918a9f1af899ef1f6c160221 SHA-1: d014e26e0dcbd75e79a98852895b9e5723db8183 SHA-256: 1bc1c8b623f2f76308e29be3e6e1c3fba0684559463e67109aef6d3c82ea9667
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a link farm. One of these links, https://ttraff.link/wix?keyword=olorun+god+reveal, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a lure to external content. The ML classifier strongly supports the malicious nature of this PDF.

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.link/wix?keyword=olorun+god+reveal In PDF document text
    • http://fitades.beachcleaner.com/uploads/1/3/2/6/132696212/vezikebomefu.pdfIn PDF document text
    • http://files.glotanningandhair.com/uploads/1/3/1/3/131381518/xururimerefibe-mexubalunilolo-rafodabe.pdfIn PDF document text
    • http://fizomeni.customcabinetrynewbraunfels.com/uploads/1/3/2/6/132695517/38d55b9a286854.pdfIn PDF document text
    • http://wizuzekaj.ottersideanimalhospital.com/uploads/1/3/1/4/131407355/4978110.pdfIn PDF document text
    • http://files.submergeradio.com/uploads/1/3/1/3/131382217/femerunuwidi.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/1/0430/2284/4067/files/papigije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9933/2516/files/sediroretunawug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/school_spelling_bee_study_list_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1594/5890/files/35687222980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4945/0663/files/65831270506.pdfIn PDF document text
    • https://b522f127-848b-4a2b-b3d3-e8b9fa65bbe9.filesusr.com/ugd/b8c837_a357767181c94a8aa9a239054859cde9.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3778/4229/files/aiag_msa_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2250/8454/files/rajigalesapul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1550/6853/files/damodar_valley_corporation_act_1948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6104/2591/files/international_bill_of_rights.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gevuruliwineda.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 3

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_off00006397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6397 4904 bytes
SHA-256: ca7e6978bf6eee89153c2892bcc08614b3281c7b3e115813fc1d7fd77a4f1e28
font_01_sfnt_off0000745a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745A 10224 bytes
SHA-256: 18c9b7c6083d6c77b996aef6230a8afe116b13cb79f5a64f481f9674556b9d40

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