Malicious PDF — malware analysis report

Static analysis result for SHA-256 7584bf2c24e209c5…

MALICIOUS

PDF

48.2 KB Created: 2020-08-09 19:59:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89e478fffdb30e1d3c4b131e0689a193 SHA-1: 9be80680bc1c740a8d0fd7938523c0cd6dd64635 SHA-256: 7584bf2c24e209c554aa4d1ec8794e7f78c71bd7e7343d047abb3dca30a9839c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating an attempt to direct users to malicious content, likely for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious. The document body text and embedded links suggest a lure related to a 'Certificat de vie commune pdf'. No scripts were extracted, but the presence of redirector links and the ML classification point to a high likelihood of malicious intent.

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=certificat+de+vie+commune+pdf In PDF document text
    • http://fekow.ctabrelief.org/uploads/1/3/0/9/130969060/viwawuzazinaj.pdfIn PDF document text
    • http://files.toharlev.com/uploads/1/3/2/8/132815343/95e82ff859421.pdfIn PDF document text
    • http://wasonus.canadaconcussionclinic.com/uploads/1/3/0/7/130776208/addab5a714c0d50.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/benubojebexoreloruva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/tosafoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1272/6677/files/above_ground_storage_tanks_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/5572171283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6045/2760/files/kewuwapunamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5309/files/niwesutafutezaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/74141490633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4501/1112/files/jizuwowemofum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7629/6614/files/brother_mfc-_j4510dw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2993/8855/files/xotelafobagopip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/7959938246.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E83 5056 bytes
SHA-256: 95f25dcb859f02391bf07f3fd043210a39b7c33bc7f21127b89de5a40c6a9ccd
font_01_sfnt_off00006f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F94 6148 bytes
SHA-256: 149738eb3e1d0bfb4a5732e89a115965e6f0cf3fc4971c694d3ce3619176544d
font_02_sfnt_off00007f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F73 11528 bytes
SHA-256: 49f7a9045c66bc091315465153777818c5ba4a2b66af9a5bcf5a9c7175b0814f
font_03_sfnt_off0000a3fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3FD 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176