Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eb4eaa4fe35d6db…

MALICIOUS

PDF

52.1 KB Created: 2020-08-13 22:00:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25bc35e820f22c381ae490fe2a44f2db SHA-1: 5c17431a21b937fc2301d06c38e5f16218565680 SHA-256: 4eb4eaa4fe35d6db22164823e13872a984232e5f910e4494da68d2c384da3493
234 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary URL directing to a malicious redirector disguised as an ITIL CMDB template. The heuristic firings indicate the presence of malicious redirector links and a link farm, suggesting a phishing or scam attempt. The document body also contains the malicious URL and other benign-looking PDF links, likely to obscure the malicious intent. No scripts were extracted from this sample.

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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=itil+cmdb+template In PDF document text
    • http://bebizak.portfolio-people.com/uploads/1/3/1/4/131407148/5a259b1189f8e.pdfIn PDF document text
    • http://files.buy.climbstation.com/uploads/1/3/1/6/131636988/lajozom.pdfIn PDF document text
    • http://files.pelebonitaspa.org/uploads/1/3/0/7/130738850/negevotusegax_wuzakunemenebov.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/1/0431/5480/0802/files/ligoziwekedurazobikati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9927/3882/files/25637839412.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/nitaxojazosureme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78682713185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2583/3884/files/dabujukipoviteri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/famuvuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/vocabulaire_anglais_financier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/16542768300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/ketozizaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/loxezafij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3257/files/kanetekokalexig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8404/5719/files/vogerixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1949/6606/files/regofupomamazuriruputatim.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_off00008d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D65 5020 bytes
SHA-256: 7b919f8dab1dad3237a4b7abfed0e4fcd5ed334e9fb49d5f8c3d91cea53d87eb
font_01_sfnt_off00009e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E58 11028 bytes
SHA-256: c852f4c49396f460d582108f74339a11065972faf429b14abdf59378ed5e2a52