Malicious PDF — malware analysis report

Static analysis result for SHA-256 becfb314e840e988…

MALICIOUS

PDF

43.4 KB Created: 2020-08-23 07:18:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40c165686bbf219c701c36a208f920ec SHA-1: 27f4a989b2b3d58ec422ac3b64e2ea147fce7e25 SHA-256: becfb314e840e9885792efcfc2e3a81aa9452fc9c2924f4841b1054b9133f55b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=fortnite+save+the+world+v+bucks+guide`. This URL is presented within the document body, disguised as a guide to obtaining Fortnite V-bucks. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is designed to lure users into clicking, likely leading to further malicious content or exploits.

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=fortnite+save+the+world+v+bucks+guide
    • http://wemanobew.upstagenydanceacademy.com/uploads/1/3/0/9/130969525/lapubodujexu-pejitug-vanutizoju.pdf
    • http://files.perryyoungblood.com/uploads/1/3/2/6/132695805/jobeselesiro.pdf
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/28936502114.pdf
    • https://cdn.shopify.com/s/files/1/0435/6728/4387/files/westminster_shorter_catechism_with_scripture_proofs.pdf
    • https://cdn.shopify.com/s/files/1/0431/6132/1621/files/creer_preterite_conjugation.pdf
    • https://cdn.shopify.com/s/files/1/0432/4491/2808/files/9090147344.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdf
    • https://cdn.shopify.com/s/files/1/0432/6824/3614/files/konasawemikilefetuwetif.pdf
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/narutixutarafejenomafu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3761/3461/files/97139674579.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2761/files/virexunaverutodafigi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/giterenodaj.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_off00006c1f.bin
ad22cb8dd55eef969f5b5f1e470ee21dda9c22df6b5454e667a8faeec885449e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1F 5512 bytes
font_01_sfnt_off00007eed.bin
1a49cacfd233b1b38b65061a50741a7655d09f4584eada06bf81c84351e8c4ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EED 9828 bytes

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