Malicious PDF — malware analysis report

Static analysis result for SHA-256 246369e559a097d2…

MALICIOUS

PDF

56.4 KB Created: 2020-07-24 20:17:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72b758557ae1a960c54cfde848e3bc44 SHA-1: b4c30f90799a1bcbac16beecac853e3dbb016437 SHA-256: 246369e559a097d2240f20b32ad50049e4f8af3cf17488de764edb13be9c87f2
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a critical heuristic firing indicating a malicious redirector link. The primary malicious URL identified is ttraff.com, which is used in conjunction with a job description lure. The document body, though heavily obfuscated, contains references to 'job description restaurant manager template' and 'wkhtmltopdf', suggesting a social engineering pretext.

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/pify?keyword=job+description+restaurant+manager+template
    • http://files.drtonicamacho.com/uploads/1/3/0/9/130969131/dc12e64d3f55ee2.pdf
    • http://files.msdioriosapclassroom.com/uploads/1/3/1/6/131637402/tenaxalibuk.pdf
    • http://files.hansvercauteren.com/uploads/1/3/0/8/130813558/jofizorazolapiz.pdf
    • http://files.mattysonmarie.com/uploads/1/3/0/7/130775795/kugopubogeke_paledagejomurik_nuxexafemefeg.pdf
    • http://files.mattysonmarie.com/uploads/
    • https://cdn.shopify.com/s/files/1/0430/7556/7770/files/84587006183.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/letobugivojofifegadijap.pdf
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/kuruvane.pdf
    • https://cdn.shopify.com/s/files/1/0429/7333/1609/files/80597166327.pdf
    • https://cdn.shopify.com/s/files/1/0437/4088/9240/files/28621248607.pdf
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/numapezo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/gobimulutojen.pdf
    • https://cdn.shopify.com/s/files/1/0437/9554/6273/files/19194008812.pdf
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/48589687630.pdf
    • https://cdn.shopify.com/s/files/1/0432/2312/2084/files/52947374701.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2116/files/27055971958.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_off000089a7.bin
6ff9e30aba8001b91d49e60110b665f5329101499414cf9e1959fabeac41d90d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89A7 5404 bytes
font_01_sfnt_off00009bdd.bin
91251485fb2ebf5fdb2e4029990ff750e796c64715aed5913b18308007a6d5a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BDD 10124 bytes
font_02_sfnt_off0000beaf.bin
8f6ddafd3b0ce2004b9503adf603897a58143e210ca714e8dcfcba1b249cf112		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBEAF 16080 bytes

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