Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d9d2a5e766eedd…

MALICIOUS

PDF

48.0 KB Created: 2020-08-10 03:30:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65af99e4df48a4d5d1d6b999048366b4 SHA-1: 65d835d473a1f2477a3d204fba45d6e12bf8086f SHA-256: 10d9d2a5e766eedd27624d9080f75b6367ca6581d1b5de70b269b5f75f0bbb5e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as legitimate documents, but they primarily lead to a malicious redirector. The heuristic firings indicate a PDF link farm and a malicious redirector, suggesting the document's purpose is to drive traffic to malicious infrastructure. The embedded URL points to a redirector that likely serves as a lure for phishing or malware distribution.

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=basic+terms+of+share+market+pdf In PDF document text
    • http://files.andersoncountygop.org/uploads/1/3/1/3/131384721/nosopux.pdfIn PDF document text
    • http://files.sacredkinship.com/uploads/1/3/2/3/132303229/31df873b2c2c1.pdfIn PDF document text
    • http://files.walleycreeknanaimo.org/uploads/1/3/2/7/132740204/a0dd517b69.pdfIn PDF document text
    • http://visewo.sudancommunitylondon.com/uploads/1/3/0/7/130776644/deporana.pdfIn PDF document text
    • http://files.caninetrainingchallenge.com/uploads/1/3/1/4/131406086/1073607.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/1/0435/3890/7288/files/kusenuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/7079890992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0730/2037/files/neat_v5._7._1._474_full._sfx._exe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/gamoxumajadavenixagolen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/31139808602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0329/7438/files/60582192476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9851/4343/files/67597014336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/cv_assistant_administratif_et_financier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5173/6471/files/56876214675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zukax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3292/6615/files/number_in_english.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9C 6416 bytes
SHA-256: 15f1f49b80f446e7933a40d6c5645ba9b1ad3ddb6c90b7ed74ec66770e7def8a
font_01_sfnt_off00007d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D65 5476 bytes
SHA-256: 62e9234268a0ae1174ba6cb84eac7a8cfb446deb42b211a1c6356dd6691a2fe3
font_02_sfnt_off00008fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FDC 10256 bytes
SHA-256: 148a3fb208a57836b98ed1a64ad726c5d79aff8a0ff2ad3ae4d47cef2dc21cea