Malicious PDF — malware analysis report

Static analysis result for SHA-256 2412e0c455b9ff26…

MALICIOUS

PDF

54.0 KB Created: 2020-08-08 19:56:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87f00f9eb20b501588143c4d52ffb36b SHA-1: 2a3cd43484500b8381cab1d7a748e363e986bae6 SHA-256: 2412e0c455b9ff26a3701b002ce5aad4324d7860081cfc1d4e5d3f2534459898
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/pify?keyword=curriculum+development+evaluation+process+in+pakistan+pdf'. Additionally, it exhibits characteristics of a link farm, embedding numerous external PDF links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent to lure users to potentially harmful content. No scripts were extracted from this sample.

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.cc/pify?keyword=curriculum+development+evaluation+process+in+pakistan+pdf In PDF document text
    • http://files.nod-production.de/uploads/1/3/0/7/130776118/3864674.pdfIn PDF document text
    • http://xelubu.davidgreenlee.com/uploads/1/3/0/7/130739919/mabotixufiz.pdfIn PDF document text
    • http://files.williammonaguenativeart.com/uploads/1/3/0/7/130739747/vunidegote.pdfIn PDF document text
    • http://files.yeeg.co.uk/uploads/1/3/1/4/131408170/4274033.pdfIn PDF document text
    • http://files.jalcinstruments.com/uploads/1/3/0/7/130776542/a547382c2a.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/1/0429/8702/8641/files/job_letter_of_recommendation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasidobedibugamis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5714/3199/files/wopekotexalolefupugoxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/65900304003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/22229833899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2681/5903/files/madolarividurorifini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8201/5135/files/namuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9321/2827/files/nibepaxaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1190/7488/files/resonant_circuit_oscillator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4596/1383/files/lubiromuwetamuxopivom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/buxibivujijinelozuxepebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2217/7688/files/principles_of_growth_and_development_in_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7490/2430/files/74651884252.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8062 5332 bytes
SHA-256: 659cbe3256bb2e75cc84800e67ca3ac00ca1a5a87305da2f09720d3215f62a59
font_01_sfnt_off00009270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9270 10044 bytes
SHA-256: 9e14b682c1416030f8c2db1184cba88ca53a05efd7eadb477a84aeeb6b290988
font_02_sfnt_off0000b4fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4FE 16180 bytes
SHA-256: cf8f50b7fe3e18837235b0fa435cdcf20701cf5086b9b5bec02d4afca0c84734