Malicious PDF — malware analysis report

Static analysis result for SHA-256 96bb250aa2ce44b3…

MALICIOUS

PDF

45.0 KB Created: 2020-08-03 19:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: febe8dd08dfdba6f0a085c072dabe3d2 SHA-1: 789da3c9fc74292aa2096838766468c49ce59b0f SHA-256: 96bb250aa2ce44b3746d1b57e44bcb2899b4598261596875b497284c3e28fb3b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting a tactic to manipulate search engine results or distribute malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=soul+music+discworld+pdf. 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=soul+music+discworld+pdf
    • http://sasibaz.fireworksstoreonline.com/uploads/1/3/0/7/130739654/boxebibod.pdf
    • http://files.paintingsbyaks.com/uploads/1/3/1/3/131383318/7671097.pdf
    • http://gabij.bassreevesconference.com/uploads/1/3/1/3/131381612/19494ebed57bb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13170590630.pdf
    • https://cdn.shopify.com/s/files/1/0434/5584/0422/files/sedikovikuzuseridefexob.pdf
    • https://cdn.shopify.com/s/files/1/0434/5479/1832/files/sewebapibozisefubuwuxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3782/6973/files/84965838963.pdf
    • https://cdn.shopify.com/s/files/1/0435/8311/1323/files/65079867909.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/75972912153.pdf
    • https://cdn.shopify.com/s/files/1/0434/1268/4967/files/12036026789.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1496/files/48004680761.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96989945255.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/90986883714.pdf
    • https://cdn.shopify.com/s/files/1/0440/3943/8486/files/91044678954.pdf
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/rofigoguv.pdf
    • https://cdn.shopify.com/s/files/1/0438/4600/8982/files/archivist_cape_of_frozen_wrath.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_off00007257.bin
53845d753f43af0e210ad80e029434f302c6d78e34002a5c86db6ca0baed01c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7257 5284 bytes
font_01_sfnt_off0000844f.bin
462b2bf25a39646d4aeb8295a10906b2b67c1826aa6f25ca0b09a3364a03cb68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x844F 10204 bytes

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