Malicious PDF — malware analysis report

Static analysis result for SHA-256 30bb2aa875f67def…

MALICIOUS

PDF

46.3 KB Created: 2020-09-11 08:15:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57f3a4ece68e31fabf6662a17c586b66 SHA-1: 23bbfddb5249d1f475515079db67eec9ce26909e SHA-256: 30bb2aa875f67def902eba80d5c68d0204a84fb327c2ba6123eccd0ea03ebe09
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.me/wix?keyword=plague+inc+evolved+strategy+guide'. The document body, though heavily obfuscated, appears to contain text related to 'Plague Inc' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF also exhibits characteristics of a link farm, with numerous external links, one of which is the primary malicious redirector.

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=plague+inc+evolved+strategy+guide
    • https://static.usrfiles.com/ugd/529385_e55757fe105c4b5db7747192fdca821d.pdf
    • https://static.usrfiles.com/ugd/3ed902_acb5246383f543bcbfb499083a80aea5.pdf
    • https://static.usrfiles.com/ugd/7e84b7_5f7bee4c90814cd5baf1d0327a9bcc26.pdf
    • https://cdn.shopify.com/s/files/1/0435/5584/8355/files/nidivusutiwejokubep.pdf
    • https://static.usrfiles.com/ugd/217b8a_76076630424b4caf937f52995c32028c.pdf
    • https://static.usrfiles.com/ugd/02631b_b727a0b372f54106b477fd5f62e7b5bf.pdf
    • https://static.usrfiles.com/ugd/e49726_8bba836decf7417e89f6952233a0ce77.pdf
    • https://cdn.shopify.com/s/files/1/0434/2674/2421/files/xigiwikudupik.pdf
    • https://cdn.shopify.com/s/files/1/0433/9938/1159/files/conjunctions_identification_exercise.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_off00006994.bin
d286c3f87ac298b73874c1e4c813b040d97e504dc022286d0bc02136c8e09359		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6994 5152 bytes
font_01_sfnt_off00007b2c.bin
73e143a3d4a9d51eca6b2291a0df71042401d4c86b26fb1e0cc6bb0599ef4638		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2C 10316 bytes
font_02_sfnt_off00009e67.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E67 4324 bytes

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