Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a1555b3ec5f90aa…

MALICIOUS

PDF

47.9 KB Created: 2020-08-22 03:53:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7da7258c5b090980563b0e7f922a5b79 SHA-1: 8258fcb931d9b0b70efa17043bcc191359dca23a SHA-256: 3a1555b3ec5f90aa7f03f7ddfc87d0c799dc49819d339d7913a2e36de5083010
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, masquerading as a lure for movie songs. This heuristic indicates a phishing attempt to redirect users to malicious infrastructure. The document body contains garbled text but includes the malicious URL and references to other PDFs hosted on Shopify, suggesting a link farm for SEO poisoning or traffic generation.

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=chaitrada+chandrama+movie+songs+free
    • http://files.mikespitzmusic.com/uploads/1/3/0/8/130814343/nipedokerediz-kizepeva-bozaxozofaza.pdf
    • http://files.k10research.com/uploads/1/3/0/7/130775493/kalutulazaw.pdf
    • http://fikobi.maindeleternel.org/uploads/1/3/0/7/130738542/576f50f7f3c14.pdf
    • https://cdn.shopify.com/s/files/1/0434/5475/9065/files/wixozoxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/43174890810.pdf
    • https://cdn.shopify.com/s/files/1/0435/4896/7061/files/faiths_of_golarion.pdf
    • https://cdn.shopify.com/s/files/1/0454/6537/0782/files/79576175334.pdf
    • https://cdn.shopify.com/s/files/1/0429/9273/0275/files/63266149782.pdf
    • https://cdn.shopify.com/s/files/1/0434/2916/7270/files/80098519920.pdf
    • https://cdn.shopify.com/s/files/1/0432/8282/5382/files/95950996903.pdf
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/68322153518.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/24635660165.pdf
    • https://cdn.shopify.com/s/files/1/0432/3957/1616/files/vesofirerewaxedif.pdf
    • https://cdn.shopify.com/s/files/1/0430/6518/0314/files/49616752016.pdf
    • https://cdn.shopify.com/s/files/1/0435/4280/6680/files/10473224679.pdf
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/logug.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1919/files/74537381565.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_off000076a1.bin
5a1dc9534bd8403b0f284952e17171d080634e7e4a231d616703edf88940d423		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76A1 5368 bytes
font_01_sfnt_off000088bf.bin
91c252c97cdfed7c4055f5fb903fb49ceeeff468632a6cc7db86ef3990a1de14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88BF 13252 bytes

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