Malicious PDF — malware analysis report

Static analysis result for SHA-256 2629c6d27ba60b81…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 20:12:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7950286c99e0a73578c3de51d1bfed37 SHA-1: 5669e53137f5bdecf3095c2594d9e09ece89137d SHA-256: 2629c6d27ba60b81a64f14720990ea42d9ec7154008e7a7cd6523c6d39b5fa22
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for an 'acca p5 examiner report'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content. No scripts were extracted, limiting the analysis of the payload.

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=acca+p5+examiner+report+dec+2018 In PDF document text
    • http://pejijes.cattlemansale.com/uploads/1/3/1/1/131164250/ziwofixesebokopig.pdfIn PDF document text
    • http://files.sorellacalisthenics.com/uploads/1/3/1/4/131483138/leleviruzexuwomaz.pdfIn PDF document text
    • http://files.theskinstudioltd.com/uploads/1/3/1/0/131069824/wuzeniseted.pdfIn PDF document text
    • http://files.adventuresav.com/uploads/1/3/1/3/131380158/4642760.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/1/0432/6585/1542/files/7231358538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dijupabexapuvasazanuripik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4781/3269/files/52967494373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6318/9405/files/15445509637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3621/1357/files/cache_memory_mapping_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9538/3461/files/rizenijifisupum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/pimafelatefopapixelepejav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2129/5003/files/32907226586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6934/9794/files/15321914334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/datofugilasififuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9167/9648/files/pocatello_weather_radar.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 8

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_off00006054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6054 5712 bytes
SHA-256: 62cb545e333c9b3b28d4a542b33a4463bd4df06daedfaf933042527956fad02b
font_01_sfnt_off000073b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B1 10280 bytes
SHA-256: 371e158d89465257309ad20b41b76c6abf859eef52ecf577315394cd113ddd60

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