Malicious PDF — malware analysis report

Static analysis result for SHA-256 205176d8f5f60352…

MALICIOUS

PDF

40.7 KB Created: 2020-08-29 18:12:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 992aebafa57564a85b98becbdc7b474f SHA-1: c7e1b680bfe1a15cd63582127c0ad68c4216f8c6 SHA-256: 205176d8f5f603528e725d0a238f4eb0ba56e2f5fe6399bc411ce3a6c50cfcb3
150 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link that is disguised as a download for 'Minecraft force op download 1.12.2'. This link points to 'https://ttraff.cc/wix?keyword=minecraft+force+op+download+1.12.2', which is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. The presence of a large number of external PDF links further suggests a link farm or SEO poisoning tactic to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=minecraft+force+op+download+1.12.2
    • https://cdn.shopify.com/s/files/1/0433/3128/9256/files/rotalasevogufuzagizaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/7763/9075/files/rukereseduzulidunite.pdf
    • https://cdn.shopify.com/s/files/1/0460/6820/3675/files/ielts_speaking_questions_and_answers_2019.pdf
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/fugobesi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4947/4453/files/25562124131.pdf
    • https://static.usrfiles.com/ugd/b8c837_05932b156a5f43b7a7132baeec57ff01.pdf
    • https://static.usrfiles.com/ugd/b8c837_abebc3777b5b4a4f8867a1f155e4821f.pdf
    • https://static.usrfiles.com/ugd/b91566_e9ba2c45ffa64981943b78a259de182e.pdf
    • https://cdn.shopify.com/s/files/1/0440/5549/4806/files/doodle_god_christmas_tree_puzzle_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/3731/0626/files/68061986627.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_off00006128.bin
31ef529c64815fbed1a15510d91de03c256a5556cca89fee48a8172578e16aa9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6128 5284 bytes
font_01_sfnt_off0000734c.bin
f8d5c18c9e2ae6e4cfcf7f39465d645827541b929ef3dcddf3ea328f62563e3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x734C 10196 bytes

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