Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b3b5c756a84aa32…

MALICIOUS

PDF

41.7 KB Created: 2020-08-11 12:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ea2f6ff38ac3896f679878ce4bd70f2 SHA-1: 458abf3ce45864e47949a2632457ec926b3072a7 SHA-256: 8b3b5c756a84aa3261cd797f29f739408984560b198f5350d21e09c594010c3c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique known as a link farm. One of these links, 'https://ttraff.com/pify?keyword=renina+angiotensina+pdf', is identified as a malicious redirector. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or to download further malware. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=renina+angiotensina+pdf
    • http://files.minnieripertonfund.org/uploads/1/3/1/8/131871633/nopidoge-bexefutof-dijixagumufujed-nexumigigu.pdf
    • http://files.alexbadas.com/uploads/1/3/0/8/130874205/9462770.pdf
    • http://files.burntchef.com/uploads/1/3/1/3/131383959/ruxafivumebipajum.pdf
    • https://cdn.shopify.com/s/files/1/0430/6167/4133/files/ec_council_certified_ethical_hacker_ceh_v10_training_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9608/8481/files/adobe_acrobat_pro_9_edit.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2165/files/venilap.pdf
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/basakugixag.pdf
    • https://cdn.shopify.com/s/files/1/0437/9066/3832/files/c_string_builder.pdf
    • https://cdn.shopify.com/s/files/1/0433/5920/7579/files/lotuzubo.pdf
    • https://cdn.shopify.com/s/files/1/0434/9778/3458/files/71065894478.pdf
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/libro_la_cabala_el_conocimiento_completo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/ridinumeluwutitu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/printable_world_map.pdf
    • https://cdn.shopify.com/s/files/1/0438/6675/1131/files/public_health_nutrition_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/silajoz.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000645e.bin
5200ab7348dece385aa311ede4ad527c1418ce0440cdd1b7aace8952e9729aac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x645E 5088 bytes
font_01_sfnt_off000075c8.bin
a8c17f38d532ea273e0d10ea553f45b7da972cde180d0e097323a7adbe455755		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C8 11244 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.