Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a01a06d55c8293…

MALICIOUS

PDF

99.7 KB Created: 2020-08-23 20:53:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00cfb1b360a9d33b8e4722230e03d496 SHA-1: 2ac0b524b072dfd7b845494aa8b5f20c0436d1d1 SHA-256: c0a01a06d55c8293dc2b7402698e127c9f2471da3ec32c161e5115c40896093b
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=us+generalized+system+of+preferences+guidebook, which is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, contains references to the guidebook and the redirector URL, suggesting a social engineering lure.

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.com/pify?keyword=us+generalized+system+of+preferences+guidebook
    • http://vagalenit.docstover.org/uploads/1/3/0/9/130969723/kopubawuxaru.pdf
    • http://gorilam.pyramidindustrial.com/uploads/1/3/2/6/132681464/vajelowexex.pdf
    • http://files.hellapure.com/uploads/1/3/0/8/130873810/bibuwakakeviza.pdf
    • http://files.poplarridgecarmel.com/uploads/1/3/2/6/132695525/junisoxede_wilituzawi_bujagute_zozugixugoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3846/5435/files/best_csgo_config.pdf
    • https://cdn.shopify.com/s/files/1/0433/2103/2859/files/xuvizavofabajak.pdf
    • https://cdn.shopify.com/s/files/1/0434/2182/7239/files/49326251413.pdf
    • https://cdn.shopify.com/s/files/1/0436/1597/7630/files/12452335266.pdf
    • https://cdn.shopify.com/s/files/1/0432/9357/3284/files/8109508091.pdf
    • https://cdn.shopify.com/s/files/1/0430/9975/0560/files/dream_he_loves_you_not.pdf
    • https://cdn.shopify.com/s/files/1/0449/1057/5771/files/trade_barrier_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0436/1384/7714/files/savepafimerafesesokunukif.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1927/files/mobutotuvunojedajifun.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/pavilodobozijit.pdf
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/65332539414.pdf
    • https://cdn.shopify.com/s/files/1/0429/7742/7609/files/77341712849.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_off00014864.bin
c5654ce4da90f618f17c5184f7ab6cafd429cd08395c1b60618e6fbb22058f46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14864 5824 bytes
font_01_sfnt_off00015c24.bin
6c2a3733acb2603f2da47d8a8cc13f1a00f6d53701cdb547defa7257d9d9f8ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15C24 10860 bytes

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