Malicious PDF — malware analysis report

Static analysis result for SHA-256 5208dce9056850ce…

MALICIOUS

PDF

40.4 KB Created: 2020-08-18 15:31:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0eeaac5f02ebee230c41973ceb60504a SHA-1: 971886a5cb601bf49afdc401d3a6075c75f1b854 SHA-256: 5208dce9056850ce0e3ab7561caad569c4bcb234649029d36b3d2af45a391d39
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=bluetooth+software+for+android+apk'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on Shopify. The document body, though partially corrupted, contains the same lure text as the redirector URL. The presence of a visual download button further supports the lure. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=bluetooth+software+for+android+apk In PDF document text
    • http://files.en.associates.artmark.com/uploads/1/3/1/3/131383651/fikujanopi.pdfIn PDF document text
    • http://tedaj.abiblo.com/uploads/1/3/0/7/130775734/pugiv-puwewidu-kewirenasas-sujewekowa.pdfIn PDF document text
    • http://files.thirdeyeelixir.com/uploads/1/3/0/9/130969825/4035c4189977.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/1/0437/1054/6070/files/page_break_inside_mpdf_not_working.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/pobazotupitezut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8600/2838/files/vonutivexuditopime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8734/5304/files/ceratite_ulcerativa_em_ces.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9740/0223/files/14810492871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4488/1059/files/tepevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9313/8333/files/zosixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/pwc_situational_judgement_test_answers.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F90 5336 bytes
SHA-256: 89cefab3ae404ddec31b976b0010412a1b2b3f2f14f18524e0985dddca352713
font_01_sfnt_off000071bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BD 10500 bytes
SHA-256: 4d576d84394e4cbe9aa7bc9a8b3c3233a6e6d596f5deddca344d94144477bea9