Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d1eaa0cb407526…

MALICIOUS

PDF

92.7 KB Created: 2020-08-18 17:41:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: febe26db96b77df5695799516400282f SHA-1: d07b984d631ecbd49ef7a111d13b2deba08972dc SHA-256: d0d1eaa0cb4075267ff4a9cd4660fa8b8367b374c1285c649c475ecc47de02dc
120 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, pointing to 'https://ttraff.ru/pify?keyword=unprovoked+dvt+chest+guidelines'. This URL is embedded within the document body, suggesting a social engineering attempt to trick the user into visiting a malicious site. The presence of a PDF link farm heuristic further indicates a potentially spam-based distribution method. 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.ru/pify?keyword=unprovoked+dvt+chest+guidelines
    • http://vilamin.toadallyquilts.com/uploads/1/3/2/6/132681556/5642891.pdf
    • http://files.drkoppmd.com/uploads/1/3/1/3/131380471/dopakenuti_zemawexupeto_sixamolenumo.pdf
    • http://boxoxu.dodlestonparishcouncil.co.uk/uploads/1/3/1/4/131411688/koniniseputexe_xomefuruvoxe_loxix.pdf
    • https://cdn.shopify.com/s/files/1/0432/5684/0350/files/20376435951.pdf
    • https://cdn.shopify.com/s/files/1/0438/4541/9173/files/markdown_change_line.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/20555788667.pdf
    • https://cdn.shopify.com/s/files/1/0450/2949/0838/files/questes_de_associao_de_capacitores.pdf
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/65162525571.pdf
    • https://cdn.shopify.com/s/files/1/0432/1538/8840/files/irritable_bowel_syndrome_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0432/4913/9880/files/zivonowixek.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41758367329.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/juzitofefelurovelasefo.pdf
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/caudillos_de_la_revolucion_mexicana_enrique_krauze.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_off0001317e.bin
608eeb37f7b81de55b307e006630a2e51333cd0706712766c8c74365ef188f5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1317E 5240 bytes
font_01_sfnt_off0001434f.bin
3e4708b472407fda1f7f047ecc2986927af4d71fbac4925acfd66455c59ad87e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1434F 10144 bytes

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