Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db7931b1f237f34…

MALICIOUS

PDF

35.3 KB Created: 2020-09-03 05:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae3c84ca098d7f59f5969f18c1f7e340 SHA-1: f6d8e8467b28c84349d5e3c8d04e788d4d81812c SHA-256: 2db7931b1f237f34522e07ddb4197cc7a562c984191add3e7c44949b5329f3c8
150 Risk Score

Malware Insights

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

This PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to benign Shopify domains, but the primary link is to a suspicious domain designed to redirect the user. No scripts were extracted, but the presence of a malicious redirector URL suggests an attempt to lead the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=esl+wh+questions+worksheet+pdf
    • https://static.usrfiles.com/ugd/3b5dd9_5648027e5c8c436b97bf4526b23a8cd0.pdf
    • https://static.usrfiles.com/ugd/b7082a_e08515835b64439995d4594969a0508c.pdf
    • https://static.usrfiles.com/ugd/764aaa_5e99372f26aa4f9e95b15408fff29792.pdf
    • https://cdn.shopify.com/s/files/1/0437/4206/8897/files/54700257853.pdf
    • https://cdn.shopify.com/s/files/1/0439/5194/7931/files/60079257084.pdf
    • https://static.usrfiles.com/ugd/fa32a6_41439ce4b382429aa7b8ed10ed7ffac5.pdf
    • https://static.usrfiles.com/ugd/d4c4cf_393894b6acd2441a8efc7ae1e9494681.pdf
    • https://static.usrfiles.com/ugd/b8c837_ef332902125d44f09dab24f6d572cbe8.pdf
    • https://cdn.shopify.com/s/files/1/0459/7140/7015/files/o_principe_do_egito_filme_completo_e.pdf
    • https://cdn.shopify.com/s/files/1/0430/9552/3485/files/befatawigizidawutizukibos.pdf
    • https://cdn.shopify.com/s/files/1/0429/5986/3959/files/ropatilibuf.pdf
    • https://cdn.shopify.com/s/files/1/0434/8251/3561/files/tuwepiluvudogomefiroxira.pdf
    • https://cdn.shopify.com/s/files/1/0431/1737/9745/files/episode_guide_game_of_thrones_tv._com.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_off00004c74.bin
fd2616d68214ea8aad44616f3e148bfae68e3ec6d2a627843598a879a20a2e7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C74 5160 bytes
font_01_sfnt_off00005e0c.bin
eb9a1c030054dd8b88796b76f7e35506006f14b69d8d41e6834cdc2dc37682a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0C 10480 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.