Malicious PDF — malware analysis report

Static analysis result for SHA-256 8520c72e1e54f571…

MALICIOUS

PDF

48.1 KB Created: 2020-09-09 00:23:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e3b086ce8014bfe379cc1246e808af3 SHA-1: b88a8898b99827a24fb3c98017641bf469417e25 SHA-256: 8520c72e1e54f571e2765ed28469a08cdd85e66b5a5a672538f66bc304991815
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, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, however, leads to a known malicious redirector at ttraff.me. This suggests the document is designed to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

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/pify?keyword=body+language+pdf+arabic
    • https://cdn.shopify.com/s/files/1/0431/4575/6833/files/gevona.pdf
    • https://cdn.shopify.com/s/files/1/0432/1558/5448/files/lekupilugimowogoxemadu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4017/7314/files/luluruganixipuzulegajimux.pdf
    • https://static.usrfiles.com/ugd/7f929b_1d61428459c44d4490ae6ff9999a55e4.pdf
    • https://static.usrfiles.com/ugd/2a2e94_32c68ad5d9734675964680243b100354.pdf
    • https://static.usrfiles.com/ugd/185c00_a4d3e12a24604a339213b6c120dea328.pdf
    • https://static.usrfiles.com/ugd/b47706_1544d769a9d84ee397cd8f1e6e502dfb.pdf
    • https://cdn.shopify.com/s/files/1/0464/2891/3816/files/65845140902.pdf
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/similarities_between_probability_and_nonprobability_sampling.pdf
    • https://cdn.shopify.com/s/files/1/0432/3737/6157/files/5123479866.pdf
    • https://cdn.shopify.com/s/files/1/0465/3308/3294/files/business_action_plan_template_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9395/files/pemodakar.pdf
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/lujuzizemetokasifamoso.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
stream_005_off0000940b.bin
ae559f91fabddf01f4ed36073244b0105912fae56ed47d68ab3ff34d80440131		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x940B 19728 bytes
font_00_sfnt_off00005efb.bin
0ff86b26ebb5cf143e58d54003183666d8e7c9f64365d92873208f38b594d208		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFB 5436 bytes
font_01_sfnt_off00007199.bin
8e0527cd3ee8b449586d54ea7ce5621faad0e6315316e9632a68f253824e4bcb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7199 10012 bytes

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