Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b1d0a67797a0e2d…

MALICIOUS

PDF

54.3 KB Created: 2020-08-29 19:42:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 658358a6672d424f387fc6f3b7ef9bb3 SHA-1: 8290a402c64720dfd434aeddf8bace4229445b1c SHA-256: 9b1d0a67797a0e2df7505f100a74b5b4107c3ee5f860aef96cefc7e5c07639a6
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com', which likely serves as a gateway to further malicious content. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/wix?keyword=c-130+loadmaster+emergency+procedure', reinforcing the malicious intent.

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=c-130+loadmaster+emergency+procedure
    • https://cdn.shopify.com/s/files/1/0430/9227/9463/files/ladenejipabaliwulagati.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/kemuxebinujotulasofituli.pdf
    • https://cdn.shopify.com/s/files/1/0434/4777/9478/files/lativuturagibilubelizuza.pdf
    • https://cdn.shopify.com/s/files/1/0437/7100/3037/files/poxovevad.pdf
    • https://cdn.shopify.com/s/files/1/0440/6640/6550/files/rotimateb.pdf
    • https://static.usrfiles.com/ugd/b8c837_41e8145f2cca49a898bf42a3af490ec6.pdf
    • https://static.usrfiles.com/ugd/b8c837_74d288e799504b99958d9226f29c1549.pdf
    • https://static.usrfiles.com/ugd/b8c837_c501d8fa13944c5da4245ccb5664cdc9.pdf
    • https://cdn.shopify.com/s/files/1/0435/4532/9832/files/i_love_merge.pdf
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/puxafexorelamuvivadido.pdf
    • https://cdn.shopify.com/s/files/1/0434/8982/0838/files/fusionner_2_pages_en_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/6594/1917/files/alaska_y_dinarama_discografia.pdf
    • https://static.usrfiles.com/ugd/97634b_7086e8235443439fbcc6844f85c82309.pdf
    • https://static.usrfiles.com/ugd/b8c837_f4bf6b409ea74fed8cf0887e40321912.pdf
    • https://static.usrfiles.com/ugd/b8c837_ad56bf27fbdd4f50aa7d76d2fb30a763.pdf
    • https://static.usrfiles.com/ugd/b8c837_dfc587d6c35a4f17877ed0369fc95c21.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_off000094c6.bin
08a036efb54a9c2445a9d7c9f84787e9b2d93505771a1c1bd9818f7acbd428c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94C6 5788 bytes
font_01_sfnt_off0000a873.bin
b7726c90c2943c81942b0c2fd0368c787f9cbfa8f26629d1ccbca8fe09e63d3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA873 10304 bytes

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