Malicious PDF — malware analysis report

Static analysis result for SHA-256 53e34b9ebe6945d6…

MALICIOUS

PDF

36.4 KB Created: 2020-08-23 18:38:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66bcc59c38a2524a15568d3656511c23 SHA-1: d29d10942dee93067e1266f0462c0572cfceaef8 SHA-256: 53e34b9ebe6945d61516fcfaa8ffec260cb0edfa5fb0f7fb53f28386ccbfec5b
120 Risk Score

Malware Insights

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

The PDF contains a link farm, with many embedded links pointing to various Shopify-hosted PDF files. One prominent link, 'https://ttraff.ru/pify?keyword=metallica+nothing+else+matters+piano+sheet', is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. 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.ru/pify?keyword=metallica+nothing+else+matters+piano+sheet
    • http://files.saneegypt.com/uploads/1/3/1/4/131438835/ebc7b05ef2b0d2.pdf
    • http://files.dusaal.com/uploads/1/3/2/8/132815207/vokok.pdf
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/xejatipuzugefodomuja.pdf
    • https://cdn.shopify.com/s/files/1/0437/6068/1109/files/nebobewaxojos.pdf
    • https://cdn.shopify.com/s/files/1/0438/0416/4257/files/70639398179.pdf
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/44550061007.pdf
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/commando_2_movie_720p_khatrimaza.pdf
    • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/priere_pour_attirer_l_argent.pdf
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/timelessness_and_the_reality_of_fate_by_harun_yahya.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2520/files/android_8_go.pdf
    • https://cdn.shopify.com/s/files/1/0433/0163/4213/files/primeiras_aulas_de_violo.pdf
    • https://cdn.shopify.com/s/files/1/0454/2480/3998/files/rikikozejirodiki.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/23549141845.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_off00004839.bin
a1fc7fa6de3751a1c0236052315dcfb4a3d72192da4f43970d1a1ad8055aa418		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4839 5352 bytes
font_01_sfnt_off00005a49.bin
8903f1ad3f58968c960ec2c05a68a017daeb57da13a1f602efce162f621950cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A49 13648 bytes

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