Malicious PDF — malware analysis report

Static analysis result for SHA-256 a08073b60888a7d6…

MALICIOUS

PDF

49.3 KB Created: 2020-08-30 14:33:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96cc7e9f2c1340e0bff14a953767808c SHA-1: a1a7e96aeb80531869835054fd76b4857f7ce82f SHA-256: a08073b60888a7d64689f05f8f421455cce1952da6aed923d9e4513056b9b388
150 Risk Score

Malware Insights

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

The PDF contains a link to 'ttraff.com' which is flagged as a malicious redirector. The document body and heuristics indicate a lure for a 'service tool v3400 free download'. The PDF also contains a link farm with multiple external PDF links, suggesting an attempt to manipulate search engine results or distribute content widely. The ML classifier strongly indicates maliciousness.

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.com/wix?keyword=service+tool+v3400+free+download
    • https://static.usrfiles.com/ugd/b8c837_97576efa759d4dea8604a39c453731cc.pdf
    • https://static.usrfiles.com/ugd/b8c837_766294f9829343e69533363d1e0b2827.pdf
    • https://static.usrfiles.com/ugd/26481d_7eeb67b013524b23a45abcbeafb63991.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/ben_10_games_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0429/8738/9087/files/el_saber_proscrito_alice_miller.pdf
    • https://cdn.shopify.com/s/files/1/0439/2235/8427/files/latest_hip_hop_album_zip.pdf
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/fifowepaburuwevatineke.pdf
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/bunebudenefuzene.pdf
    • https://static.usrfiles.com/ugd/b0b521_95c01d0a3cf1450eafba5429a1f56259.pdf
    • https://static.usrfiles.com/ugd/cc10e7_d1e918fd83734d668e762a4add27f0bb.pdf
    • https://static.usrfiles.com/ugd/65b209_57b293aaf51545c486b13c8400ea0cec.pdf
    • https://static.usrfiles.com/ugd/0f1814_13507277e3734c6cb6b54d9fd47b6faf.pdf
    • https://static.usrfiles.com/ugd/cc03df_a6c0f4e532cb417db8d17a9c46d6b7a8.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007559.bin
f96e82a95dd0e39ae2af2fc8b52bc7957ba171125c789f16c39bfd3279b6ba81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7559 5272 bytes
font_01_sfnt_off0000875f.bin
a571d7a4103257b649318bebcebebf16ca20d35a972a51d2cf07b75fba22fb72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x875F 10112 bytes
font_02_sfnt_off0000aa12.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA12 4324 bytes

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