Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e5c277c3789eff1…

MALICIOUS

PDF

40.0 KB Created: 2020-08-30 08:51:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d83c1f643387608c1fdde864d1467a6 SHA-1: 0a98f3c18b29efac5d1a456862fc9ac0bbf0e41a SHA-256: 3e5c277c3789eff1b434461d610584cae6395c5449f55c38e3de36ac4de6706b
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=competitive+analysis+template+ppt'. This URL is presented within the document body, suggesting a social engineering lure to trick the user into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious destination. 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.cc/wix?keyword=competitive+analysis+template+ppt
    • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/rominoxotavarovavawenu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6119/files/dragon_combat_overhaul.pdf
    • https://cdn.shopify.com/s/files/1/0438/9978/1288/files/1034944990.pdf
    • https://cdn.shopify.com/s/files/1/0431/1980/4582/files/bebepumawofixa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/kimasarozoguwetufagibu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1959/2099/files/18295636688.pdf
    • https://cdn.shopify.com/s/files/1/0432/9573/5976/files/14534993015.pdf
    • https://static.usrfiles.com/ugd/b8c837_9103ccc0c81647c68040e4b2ae5c9f27.pdf
    • https://static.usrfiles.com/ugd/bfbc46_40a8f8838ba9482caee59a1963ed634d.pdf
    • https://static.usrfiles.com/ugd/b8c837_778fabad083c45bcac7329df819bf7d4.pdf
    • https://static.usrfiles.com/ugd/b8c837_1f2e5d2036c146418585a26300aef531.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_off00005fad.bin
22fe32512923f619951096c0e5626321c9f31f1f6009dfa5965284e192237d70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAD 4936 bytes
font_01_sfnt_off0000706c.bin
0757c8cc39a5c031219f788b391362ef01e6bbea75437f3edefee654bafa909b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x706C 10260 bytes

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