Malicious PDF — malware analysis report

Static analysis result for SHA-256 d778196f106b12bf…

MALICIOUS

PDF

40.9 KB Created: 2020-08-10 17:17:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d575e3850218e2b45936b809f231269 SHA-1: d2977b9122e82f4076c19f6438b11fec28289339 SHA-256: d778196f106b12bfc1a897240983cad56c31629e271715375308a632954d4147
120 Risk Score

Malware Insights

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

The PDF contains a link to a redirector service, 'ttraff.com', which is a common tactic for delivering malicious payloads. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. The presence of numerous other links to Shopify-hosted PDFs indicates a link farm strategy to improve search engine ranking and visibility for the malicious content. 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=step+growth+polymerization+pdf
    • http://files.explainingmaths.com/uploads/1/3/1/4/131453698/demajoluvumetolodo.pdf
    • http://files.liftislandfashion.com/uploads/1/3/1/0/131070178/novifof-panefixeloje.pdf
    • http://ziror.harvestogtc.com/uploads/1/3/0/9/130969061/midajupabiga.pdf
    • http://files.sanmateolimos.com/uploads/1/3/1/3/131383553/612544a.pdf
    • https://cdn.shopify.com/s/files/1/0431/4664/1570/files/72955089768.pdf
    • https://cdn.shopify.com/s/files/1/0440/6345/7432/files/69409801633.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/sokixafodojobozomibaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/4351/2732/files/bwv_1065.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92835403356.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0267/files/kitujezorugarusazamu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/28649288079.pdf
    • https://cdn.shopify.com/s/files/1/0431/8176/8872/files/homestuck_minecraft_skins.pdf
    • https://cdn.shopify.com/s/files/1/0435/8724/0093/files/42406237146.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.pdf
    • https://cdn.shopify.com/s/files/1/0428/8721/7319/files/edema_cerebral_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0438/4374/7990/files/88845117740.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_off000061a1.bin
4a7faabf1060ace7baf403760ced0cb7a803c49710bf2e301fc60e1fc0e3eedd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61A1 5624 bytes
font_01_sfnt_off000074c3.bin
5cb6621b4b26919004ead72e0bfdaa66ff3b3fa8e694fca53025968cb08b52f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74C3 10088 bytes

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