Malicious PDF — malware analysis report

Static analysis result for SHA-256 244228028679dc06…

MALICIOUS

PDF

42.4 KB Created: 2020-08-30 14:15:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c658c2fd35bab538a07c2b60e65a4cd SHA-1: 14cd3e2d0db976c9ea8c9b633e12280d0d02c3a3 SHA-256: 244228028679dc06fd1075cc28a344109cc436d7bbc1bcad11aed0a5d82dcbdd
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL. The presence of a link farm further suggests a malicious intent to drive traffic to potentially harmful sites.

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.cc/wix?keyword=between+two+worlds+questline
    • https://static.usrfiles.com/ugd/f459ea_327c32dccfba413f8e8d6a9eb37b765a.pdf
    • https://static.usrfiles.com/ugd/b8c837_1bb2aa7339834f3a8358bd9568f5b3e9.pdf
    • https://static.usrfiles.com/ugd/4d6844_9c479bc83ffb4e8ca77e7eb02877bc08.pdf
    • https://static.usrfiles.com/ugd/93c935_785ecf2e55d94b6bbd0f02d7223e0c08.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/10th_class_biology_textbook_english_medium.pdf
    • https://cdn.shopify.com/s/files/1/0430/1481/5901/files/vobujevezaso.pdf
    • https://cdn.shopify.com/s/files/1/0433/2165/5464/files/dnd_5e_tiefling_subraces.pdf
    • https://cdn.shopify.com/s/files/1/0436/4419/0880/files/cyber_bullying_journal_articles.pdf
    • https://cdn.shopify.com/s/files/1/0430/0954/0257/files/vaparixarexarafukugigu.pdf
    • https://cdn.shopify.com/s/files/1/0462/1248/1177/files/65635464656.pdf
    • https://cdn.shopify.com/s/files/1/0432/3655/6962/files/51554913728.pdf
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/amazfit_bip_english_manual.pdf
    • https://static.usrfiles.com/ugd/b8c837_623c16f8a7a44d1eaae6d3bf95a21b91.pdf
    • https://static.usrfiles.com/ugd/71fd01_4b2503d48a6349cab06f33909ff514c2.pdf
    • https://static.usrfiles.com/ugd/b8c837_c2fb51372f29401490b51c546366477a.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_off0000688a.bin
74e24d4e8e09b4d34f10aa3a1dacd9f97f92990136c72e4f4a64b8ad9c8c347d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x688A 4876 bytes
font_01_sfnt_off0000793d.bin
6030561f1950a5b1099bbf71ef52e30424017b0191000368525e7e048d0000fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x793D 10424 bytes

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