Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad6c2e5ce916f82d…

MALICIOUS

PDF

34.1 KB Created: 2020-08-09 10:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f1061a23e3b2e06dc2cbc87c842d75f SHA-1: 9a02bfba471f36bb45ef5af1a26b2f3ce6a58af2 SHA-256: ad6c2e5ce916f82d427a4512c53b58ea45a7ea02d12cfc57984e453c957954cc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=vivaldi+spring+sheet+music+pdf'. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs, including a benign-looking Shopify link that likely serves as a decoy. The document body text and embedded artifacts are obfuscated, but the primary intent appears to be directing users to malicious infrastructure via a deceptive lure.

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=vivaldi+spring+sheet+music+pdf
    • http://sisuxuson.alaskacenterforfasd.com/uploads/1/3/1/6/131636612/kugowukarolarojemato.pdf
    • http://files.sigmapivu.com/uploads/1/3/1/4/131414743/jemavujit.pdf
    • http://bilaninog.macmccuskerceramics.com/uploads/1/3/1/6/131606289/329e16.pdf
    • http://files.jakewheeler.com/uploads/1/3/2/6/132695525/34f54ca07f.pdf
    • http://files.changemanagementassociates.com/uploads/1/3/1/0/131069863/052d6.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/taralofibinodemoveza.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0146/files/nibusilakegetu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/32534852897.pdf
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/stewart_calculus_2nd_edition_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/before_i_fall_lauren_oliver_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/37620813549.pdf
    • https://cdn.shopify.com/s/files/1/0438/6045/9685/files/familia_y_embarazo_adolescente.pdf
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/42001499914.pdf
    • https://cdn.shopify.com/s/files/1/0432/0008/6175/files/the_illusion_of_life_disney_animation_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/34780415319.pdf
    • https://cdn.shopify.com/s/files/1/0430/7963/1001/files/xovuka.pdf
    • https://cdn.shopify.com/s/files/1/0433/4927/8875/files/alberto_caeiro.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_off000048d0.bin
993c8e6419b02ab45e4a1c5fda6b776f865aea24457f60650b62f34c0f81a1e2
pdf-font-stream PDF embedded font (sfnt) at offset 0x48D0 5596 bytes
font_01_sfnt_off00005bb8.bin
6852fc8529249ac162b8783d59433942c2f5cc06f68349511db3b5690888c4e2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB8 9296 bytes