Malicious PDF — malware analysis report

Static analysis result for SHA-256 946b407124e8679e…

MALICIOUS

PDF

43.1 KB Created: 2020-09-22 09:25:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 584087619fd5af5a5b85e714108acbc0 SHA-1: 5e644fbeafca2ebd00d6521c6ff2c0f9d4c3a996 SHA-256: 946b407124e8679e8a67714bd75c3a0f6959d14771bbd064ee7119b3d8385849
120 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure to download software, likely a pretext for delivering malware. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, further supporting a malicious distribution scheme.

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=download+wwe+2k17+apk+%252B+data
    • https://4a9cf58a-6f70-46d9-a928-d98f020e434d.filesusr.com/ugd/7182f3_9b20c4b54faf466898a0e0ffe84637fe.pdf?index=true
    • https://13f8be59-9b65-43a6-aa6d-f6a74b7712f3.filesusr.com/ugd/5bb01c_2ee1a19b7d86444db7e70ec7e689548b.pdf?index=true
    • https://8f64aced-5df6-454c-a6bf-ce50ff7a7459.filesusr.com/ugd/6166c9_9d9bfc61562d426cb60a9c3343c4e377.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/xexetel.pdf
    • https://cdn.shopify.com/s/files/1/0427/3651/7286/files/kumuzakituxeporitukeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/gogudozedukinowod.pdf
    • https://cdn.shopify.com/s/files/1/0428/0903/2863/files/99239364255.pdf
    • https://cdn.shopify.com/s/files/1/0483/2880/2468/files/pinoy_tv_replays_abs_cbn.pdf
    • https://cdn.shopify.com/s/files/1/0430/1979/6643/files/chrysler_300_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/4882/8065/files/scalloping_lighting_definition.pdf
    • https://cdn.shopify.com/s/files/1/0433/9829/9813/files/brahman_granth_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/8551/9255/files/86130525425.pdf
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/skidstorm_mod_apk_revdl.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_off00006b0c.bin
37c64492ef7d4634eedc061f35303e38bebbba11bc2283c5119e845ad75e146c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0C 5096 bytes
font_01_sfnt_off00007ca2.bin
fb2cfeb9431f4812a11013053975f410a5c56c116488e674a4e4b23237ccdd5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA2 10192 bytes

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