Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fd2784afc07d060…

MALICIOUS

PDF

52.4 KB Created: 2020-07-24 20:39:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64b6369717a1bf2d377d54bbcb1fb88e SHA-1: fd23c4a2dc47eeffe205e8af0b755a68a43416db SHA-256: 1fd2784afc07d06001b75f8f02397f3b792c0be1f8cb3a3b24e204d7eb2aa40e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=types+of+software+packages+pdf'. Additionally, it exhibits a PDF link farm heuristic, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0428/1516/0487/files/47297133345.pdf'. These findings suggest the document is designed to lure users to malicious sites.

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.cc/pify?keyword=types+of+software+packages+pdf
    • http://files.tadaa.com.au/uploads/1/3/2/6/132695513/pataf-saxikakaxowo-doduna.pdf
    • http://files.plasticproductionallc.com/uploads/1/3/1/6/131606159/7394694.pdf
    • http://files.visualtommy.com/uploads/1/3/0/8/130873869/tinupeketajusa_netemupunux_wedevup_vutifofaso.pdf
    • http://files.juliebakerconsultancy.com/uploads/1/3/1/1/131164046/vifibaxejov.pdf
    • https://cdn.shopify.com/s/files/1/0428/1516/0487/files/47297133345.pdf
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/teruzumanasarogi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/surufavugilimitebutibod.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/fakivedogofibiwedepusin.pdf
    • https://cdn.shopify.com/s/files/1/0431/7039/8372/files/ridun.pdf
    • https://cdn.shopify.com/s/files/1/0436/1987/7024/files/14443493897.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/begesewaxunofonepo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demotufilonameviv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tepumesuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/9602374410.pdf
    • https://cdn.shopify.com/s/files/1/0431/5345/7320/files/68535078282.pdf
    • https://cdn.shopify.com/s/files/1/0430/9870/1977/files/99042975912.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_off000085d7.bin
2c1ea3aeb7c247063d774988a4ef6033c70ef4996559ad30f3cc67870ba29e98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85D7 5132 bytes
font_01_sfnt_off00009780.bin
297738a799789ab7e119e6159f2b2833876a12d6b5b130ec74bea303280efdd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9780 14408 bytes

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