Malicious PDF — malware analysis report

Static analysis result for SHA-256 56c69820e89a6458…

MALICIOUS

PDF

32.4 KB Created: 2020-08-31 02:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f58a04bcde8edf08123f665a2a9e8d3 SHA-1: 15b8e7bfd2f853610b819ff8e00a92cea97621fd SHA-256: 56c69820e89a6458a717d244d258344c42d1994847fd1358361a061d074e1e74
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, a technique often used to inflate search engine rankings or redirect users to malicious sites. The primary redirector URL, https://ttraff.com/wix?keyword=mtd+10+hp+29+snowblower+manual, is flagged as malicious. While many other links point to benign Shopify domains, the presence of the malicious redirector and the link farm structure strongly suggests a malicious intent to lure users to harmful content.

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=mtd+10+hp+29+snowblower+manual
    • https://cdn.shopify.com/s/files/1/0430/5184/3733/files/48907107434.pdf
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/sajijozogopisarije.pdf
    • https://cdn.shopify.com/s/files/1/0432/3675/3570/files/danmachi_light_novel_volume_11_trans.pdf
    • https://cdn.shopify.com/s/files/1/0432/1633/9111/files/zenefizivajaxowi.pdf
    • https://cdn.shopify.com/s/files/1/0435/4772/1882/files/niwolinuloxiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/7424/1183/files/ziwebulemodufaf.pdf
    • https://static.usrfiles.com/ugd/fe83c3_84b705095a6142d5bcc64fd06e49222e.pdf
    • https://static.usrfiles.com/ugd/f84671_61d976274128443d83a8fec73592a9df.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4ad87bbb5ac45b1b7a6d1efa8027d16.pdf
    • https://static.usrfiles.com/ugd/b8c837_f3b86c16dfe740c0a94601885d5d65a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_aaf9192b759d4957b97fc0fac42a4e34.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_off00003f75.bin
244f4537c9f90863d66d6057b3056c38d2b7f2b157161fcdc586cce77e139b41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F75 5920 bytes
font_01_sfnt_off0000537a.bin
34f5a5d789537d968f10bcd77f5e879f30fa5d00e9980915323aa190a5ee7b7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x537A 9928 bytes

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