Malicious PDF — malware analysis report

Static analysis result for SHA-256 46cc71b8c774e907…

MALICIOUS

PDF

50.3 KB Created: 2020-08-19 22:53:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d192aa6625b397bc5c87c4249f52cc9 SHA-1: 73f9437ed7930a6e0fca3cedad0b3afdb43faee7 SHA-256: 46cc71b8c774e9077735a09eb704be0ba90f4b0497f43376d1d020b1f2277236
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'simple sublease agreement template' and the malicious URL. This suggests a phishing attempt to redirect users to malicious content.

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=simple+sublease+agreement+template+pdf
    • http://fexexosi.cuprodigy.com/uploads/1/3/1/4/131408791/tasimu-mebiwusabu-diroperidawuni.pdf
    • http://juluraw.illanabarran.com/uploads/1/3/1/3/131383657/jupireteludovuperumi.pdf
    • https://cdn.shopify.com/s/files/1/0448/1653/1617/files/tchibo_cafissimo_picco_bedienungsanleitung.pdf
    • https://cdn.shopify.com/s/files/1/0431/2779/9969/files/45266517925.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fisebupujavilugux.pdf
    • https://cdn.shopify.com/s/files/1/0439/4034/8059/files/26499559056.pdf
    • https://cdn.shopify.com/s/files/1/0433/4908/2261/files/85558804738.pdf
    • https://cdn.shopify.com/s/files/1/0428/1021/2518/files/71565604917.pdf
    • https://cdn.shopify.com/s/files/1/0431/3477/9553/files/8964104563.pdf
    • https://cdn.shopify.com/s/files/1/0436/2669/2771/files/83468328855.pdf
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/komixoxudemunopuxil.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_off000085d6.bin
9a21da33febaf0163bc99e956f79c89eb7448d58d0b5137ef35b3a84ca18abe2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85D6 5604 bytes
font_01_sfnt_off000098bc.bin
f03fd828783a87d07515ddee4b16d35ab9ca90df22ffe980a5e2aa94034ad120		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98BC 10364 bytes

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