Malicious PDF — malware analysis report

Static analysis result for SHA-256 c008be449e6192f1…

MALICIOUS

PDF

40.3 KB Created: 2020-08-31 08:37:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7329b9fab9df66e6992c838ca96dac59 SHA-1: f39c73067ba58dfe4dc083b7be2dbe6fbca665a4 SHA-256: c008be449e6192f188fdafc478347e833f22071f8c7786301382e9d4b8e56647
140 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, including one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'human sexuality'. The presence of a link farm heuristic further indicates an attempt to distribute malicious content or traffic. The primary attack pattern involves luring users to malicious sites via embedded links.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/wix?keyword=human+sexuality%253A+diversity+in+cont
    • https://static.usrfiles.com/ugd/b77b08_0bb01f4e01b54880bf914715b79ff874.pdf
    • https://static.usrfiles.com/ugd/078c79_796c20ccaf914786905826deb50d9a98.pdf
    • https://static.usrfiles.com/ugd/b9801a_90d42a4146c84f86938516b182c07b8c.pdf
    • https://static.usrfiles.com/ugd/e4a001_23c7395f4932422b9b091db179dadb6a.pdf
    • https://static.usrfiles.com/ugd/b8c837_b3fad244073e45028d9f892bbbcd1a2a.pdf
    • https://static.usrfiles.com/ugd/97634b_a036f4254c39436b83d33c30532a9f4d.pdf
    • https://cdn.shopify.com/s/files/1/0440/5772/3030/files/discord_markdown_links.pdf
    • https://cdn.shopify.com/s/files/1/0462/7539/5744/files/godetobotaropo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5129/4628/files/nakijiporanewakijogisup.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5351/files/giruxonedixunotum.pdf
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/92177582847.pdf
    • https://cdn.shopify.com/s/files/1/0433/7496/8997/files/chasing_liberty_parents_guide.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/
    • https://cdn.shopify.com/s/files/1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f40.bin
2894fe2078006e2525e55aa0ba97ec9278ba788907bfc35feab2040cea4a0c13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F40 5324 bytes
font_01_sfnt_off0000713f.bin
144fdeaa4f97ad4fe4fd78b813494e2df648cc63f5e76535f8eab0ba9f453e33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x713F 10168 bytes

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