Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b9187de9355b5e7…

MALICIOUS

PDF

94.4 KB Created: 2020-08-19 04:23:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8774d9edd8e39bae84f513ed5deedca1 SHA-1: 2172986684424ff927b3dcddeabb878f914240e1 SHA-256: 8b9187de9355b5e7d690c1147f5c181b159eb43e34622c856e16ed757ef3d620
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=bhakthi+geethalu+songs'. This redirector likely leads to a malicious payload or phishing page. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links to other PDF files, many hosted on Shopify. The document body contains garbled text but includes the same malicious URL and a benign-looking Shopify URL, suggesting 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.ru/pify?keyword=bhakthi+geethalu+songs
    • http://files.washington-scottish.com/uploads/1/3/0/8/130874318/8b0f395751b7b3.pdf
    • http://files.creeksideband.com/uploads/1/3/1/3/131384789/3301404.pdf
    • http://files.kamiperiman.com/uploads/1/3/1/3/131381450/pifozuwa.pdf
    • http://tunatibo.susmanosextendidasmexico.com/uploads/1/3/1/1/131163962/5825352.pdf
    • http://mofeviji.islandphysics.com/uploads/1/3/1/0/131070161/ledez.pdf
    • https://cdn.shopify.com/s/files/1/0435/3556/4964/files/84057343706.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1271/files/l_automate_programmable_industriel.pdf
    • https://cdn.shopify.com/s/files/1/0431/4788/6743/files/lolefakexadojuf.pdf
    • https://cdn.shopify.com/s/files/1/0444/3848/7206/files/antenna_theory_3rd_edition_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/1392/1189/files/35278620004.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8770/files/72648069192.pdf
    • https://cdn.shopify.com/s/files/1/0428/7610/8956/files/wiralabososilin.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/pitejufobulujuf.pdf
    • https://cdn.shopify.com/s/files/1/0436/1725/5581/files/industrial_maintenance_test.pdf
    • https://cdn.shopify.com/s/files/1/0437/3390/9665/files/wilanadamizar.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_off000133e8.bin
736c67b13406766bce6fcf8992af5ca2f83cd264e7a087f96a3cb8aeccadab76		 pdf-font-stream PDF embedded font (sfnt) at offset 0x133E8 4964 bytes
font_01_sfnt_off000144cb.bin
c33ca6a1d2bdf92173d7ff1ba84a469d32e130284ff88f2a2b9ba3e811bb163a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x144CB 12236 bytes

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