Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a6ad77c17c39d94…

MALICIOUS

PDF

42.5 KB Created: 2020-09-23 09:03:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 032042ef107f04b1c54776a16c92125a SHA-1: d258f44282320954d9050174b2c1e13b92cab045 SHA-256: 8a6ad77c17c39d942787581e9fdb61a8583df38d8790628faabedff62179a8e7
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/pify?keyword=ram+1500+seat+covers+2018'. This indicates an attempt to direct the user to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL and references to 'Ram 1500 seat covers 2018', suggesting a lure. The presence of numerous other links to Shopify PDFs, while individually benign, contributes to a link farm pattern, potentially for SEO manipulation or to mask the malicious redirector.

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.me/pify?keyword=ram+1500+seat+covers+2018
    • https://cdn.shopify.com/s/files/1/0437/5596/2522/files/craftsman_lt1000_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1282/4993/files/59519294884.pdf
    • https://cdn.shopify.com/s/files/1/0432/6427/8686/files/argent_illimit_cities_skylines.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3077/files/pigazukapodipevipigunukuz.pdf
    • https://cdn.shopify.com/s/files/1/0440/4399/3238/files/lord_of_the_flies_study_guide_and_discussion_questions_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/6510/5814/files/norton_anthology_of_short_fiction_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdf
    • https://cdn.shopify.com/s/files/1/0436/2413/6864/files/ravasolawogagozefarevas.pdf
    • https://cdn.shopify.com/s/files/1/0433/4393/7690/files/building_a_pc_full_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/3688/4642/files/68479746440.pdf
    • https://cdn.shopify.com/s/files/1/0435/4329/8207/files/tubemate_apk_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0458/0048/9126/files/additional_information_form_inz_1200.pdf
    • https://5ccd54f4-a376-42bb-a345-55c49006b0a3.filesusr.com/ugd/3bbd68_7ac954f39442472bbfa8d28caabbc349.pdf?index=true
    • https://6831d711-0e79-4b88-8209-6a1b8020c088.filesusr.com/ugd/97634b_bd8d09ade0a64fce845f7ede2cfc1e90.pdf?index=true
    • https://c984e8bd-a979-4522-b64f-94611d377030.filesusr.com/ugd/e78b77_8533c0e10ce94f2f9b26b95600350736.pdf?index=true
    • https://0d797a3b-3eb9-438f-b3b9-c8dbba7d3dec.filesusr.com/ugd/af0aa9_15fb478bff544b1fbef5fc22d3318d38.pdf?index=true
    • 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_off00005402.bin
a2329c090af7c371782afe1bf2a47d29c6ff9ff3c59a5a4c5a39f9ad3c8b31e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5402 5256 bytes
font_01_sfnt_off000065e5.bin
563a4e62cbae8f65e249900e4f674d30547bb414ee8dbe5002600df0b38b3d82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65E5 13000 bytes
font_02_sfnt_off00008f0c.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F0C 4324 bytes

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