Malicious PDF — malware analysis report

Static analysis result for SHA-256 22dd626604aa37f2…

MALICIOUS

PDF

42.0 KB Created: 2020-08-30 07:10:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c2d17fb70e6c768c7e199de7d126e14 SHA-1: d01fdbd05d7cc5a9712449ff4f9d1a045baf6c13 SHA-256: 22dd626604aa37f231d63c9f438cd06fa62d151280f166249cec08cac8ddb5cf
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=story+of+your+life+and+others+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are benign but serve to obscure the malicious one. The document body, though heavily obfuscated, contains the malicious URL and a benign-looking title, suggesting a social engineering lure. No scripts were extracted from this sample.

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/wix?keyword=story+of+your+life+and+others+pdf
    • https://static.usrfiles.com/ugd/b8c837_3d4996c4c49c4289a8913bc5ffcd4555.pdf
    • https://static.usrfiles.com/ugd/b8c837_955193f177cb47a8b3e45262bbd0bbda.pdf
    • https://static.usrfiles.com/ugd/06497e_6a0a35b9b02f484a87b848bea2ed0d81.pdf
    • https://cdn.shopify.com/s/files/1/0432/7096/3366/files/fabebez.pdf
    • https://static.usrfiles.com/ugd/b8c837_e8b19e7a49484c258ee85c137f1dec9c.pdf
    • https://static.usrfiles.com/ugd/b8c837_7450f0a71b8442cc90548803a306cbe0.pdf
    • https://cdn.shopify.com/s/files/1/0464/5286/7240/files/86726958209.pdf
    • https://cdn.shopify.com/s/files/1/0439/6479/2990/files/cat_war_mod_apk_revdl.pdf
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/57494175409.pdf
    • https://cdn.shopify.com/s/files/1/0432/7420/7387/files/daxuri.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_off000068b7.bin
6959e68b3f757540a4e29c8103e567e4579d481dddf6d5b0337106746f2b4ca8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68B7 5332 bytes
font_01_sfnt_off00007ad1.bin
8173ee0a6782aac29a3b77dea90051859cb870f94519439c735735810ccbc5ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD1 9600 bytes

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