Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c52383d04a3a9f6…

MALICIOUS

PDF

46.8 KB Created: 2020-09-06 23:59:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 726431e790fda2cc67644d7c43764018 SHA-1: 10f6ae68b1a145f5891e34982a81253e49175f8d SHA-256: 4c52383d04a3a9f6129784e5a7ff5d15903fc1355573dd292cc9981c5ebb2cd5
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, characteristic of a link farm designed to obscure malicious activity. One of these links, 'https://ttraff.me/wix?keyword=sapna+choudhary+songs++pagalworld', is identified as a known malicious redirector. The document body appears to be obfuscated or corrupted, but the presence of the redirector link is a strong indicator of malicious intent, likely to lead the user to a phishing or malware distribution site.

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.me/wix?keyword=sapna+choudhary+songs++pagalworld
    • https://static.usrfiles.com/ugd/83f04e_309efda0a58b499191097b077d258073.pdf
    • https://static.usrfiles.com/ugd/4bb894_b0d697e37df34764bbd23ec3179a14b2.pdf
    • https://static.usrfiles.com/ugd/111c46_50898371f2f64f09bdaf415547582f2f.pdf
    • https://cdn.shopify.com/s/files/1/0435/2720/9120/files/8774702745.pdf
    • https://cdn.shopify.com/s/files/1/0435/2458/7674/files/xifuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8336/files/tufakovomob.pdf
    • https://cdn.shopify.com/s/files/1/0436/9675/0742/files/rudogolimabonol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/botudurodakokebavexosox.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/kadifiminopor.pdf
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/39731592104.pdf
    • https://cdn.shopify.com/s/files/1/0437/3217/2951/files/73087975055.pdf
    • https://static.usrfiles.com/ugd/866690_5d0e056093f747b19e67f5b02aae4f09.pdf
    • https://static.usrfiles.com/ugd/b8c837_9ac67685347c418a8d01357a5a585f4a.pdf
    • https://static.usrfiles.com/ugd/decf6f_8f29c50b6f694f5387a66ca8beabfa55.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005da8.bin
dce3030609895347f8eb5ae6963eab2741a10e7e39a6bfeba8d503d438c0f0a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA8 5632 bytes
font_01_sfnt_off000070e0.bin
77c45256bf5cfc14c6c4ad72eaf6cfe47418133ba02784a66fcf56ffd1f7988b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E0 14200 bytes
font_02_sfnt_off00009dab.bin
abfb52a4e79035acf7348dd0eae3c32e26b47fc6a9797aab0a4187def821316b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DAB 4408 bytes

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