Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b1783dd4a8b6be9…

MALICIOUS

PDF

43.4 KB Created: 2020-09-09 05:49:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62429578a6e7efa7c89530734725592d SHA-1: dfe061e92dce96876929d4f549c553cf944ed34d SHA-256: 9b1783dd4a8b6be91bfb9b64aba760e78fae130135a4326a9f520732932de787
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'creative personal branding' and includes the malicious URL, suggesting a lure to a phishing or scam site. The presence of numerous shopify links appears to be an attempt to blend in with legitimate 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.me/wix?keyword=creative+personal+branding+j%25C3%25BCrgen+salenbacher+pdf
    • https://cdn.shopify.com/s/files/1/0457/7165/3286/files/escape_room_level_209_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/9276/2017/files/7691594306.pdf
    • https://cdn.shopify.com/s/files/1/0439/9942/8766/files/lanarux.pdf
    • https://cdn.shopify.com/s/files/1/0432/7142/2115/files/33470050298.pdf
    • https://cdn.shopify.com/s/files/1/0432/6293/5200/files/66783054043.pdf
    • https://static.usrfiles.com/ugd/b7306e_1ac28fe71e9641f39a46e85a5fa3a0e0.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/anemia_pathology.pdf
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/65417283396.pdf
    • https://cdn.shopify.com/s/files/1/0433/7506/7297/files/18212809195.pdf
    • https://static.usrfiles.com/ugd/d6b5da_5ad3a9181d8343deab3be589d846671c.pdf
    • https://static.usrfiles.com/ugd/b8c837_ac9ceaa05ab84ae288e72d61d4a35605.pdf
    • https://static.usrfiles.com/ugd/60933b_d35f50e5ccd14c80adbc8a5509a0285f.pdf
    • https://static.usrfiles.com/ugd/837d34_2fa7b469ad95440aa706e0aad43e03ec.pdf
    • https://static.usrfiles.com/ugd/cc03df_0337f5f2b6494b4d8da8bdc22df3372b.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_off000066a4.bin
6bbfe167083c8230fbb73100fdbed46f9a50cf1d77706f7b5b8e6b29f407f35c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66A4 5716 bytes
font_01_sfnt_off000079dc.bin
20f7fc7d83b6fb3b9d8dd44de3059c5e0493dfc824659e47edda63ccfbacb2a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79DC 11096 bytes

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