Malicious PDF — malware analysis report

Static analysis result for SHA-256 58be05c7f39cde1c…

MALICIOUS

PDF

120.3 KB Created: 2020-08-24 03:08:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa2d9a070d0cb5a4bc9dd1329b9d2ebf SHA-1: 987ea63bea82f66e3a82f7474d9fe6b77467ce79 SHA-256: 58be05c7f39cde1c069df64361521acaeba71c63b7300081ce623c257f84413e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a heuristic indicating it's a lure for an advance-fee scam, presenting itself as 'Corporate social responsibility reporting guidelines'. It embeds a link that redirects to 'https://ttraff.com/pify?keyword=corporate+social+responsibility+reporting+guidelines', which is flagged as a malicious redirector. The document also contains a large number of external PDF links, many hosted on cdn.shopify.com, suggesting a link farm for SEO manipulation or to obscure the final malicious destination.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=corporate+social+responsibility+reporting+guidelines
    • http://files.courtneymakesvideo.com/uploads/1/3/2/6/132695571/1856173.pdf
    • http://files.kurdtardt.com/uploads/1/3/1/4/131482950/4d3606c77d6994.pdf
    • http://xedizapu.chaleffandrogers.com/uploads/1/3/0/8/130874359/269414.pdf
    • https://cdn.shopify.com/s/files/1/0432/9334/3912/files/creepy_carrots_guided_reading_level.pdf
    • https://cdn.shopify.com/s/files/1/0434/0740/9308/files/16393966819.pdf
    • https://cdn.shopify.com/s/files/1/0429/0481/3721/files/aplikasi_whatsapp_untuk_blackberry_bold_9780.pdf
    • https://cdn.shopify.com/s/files/1/0431/7039/8368/files/pathologie_de_l_articulation_temporo_mandibulaire.pdf
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/nelegu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2160/6820/files/business_goals_and_objectives_examples.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/43193157268.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_off000199a2.bin
2e0d89e67083c206215e1129edc4525849b0c6415bbccfd3ec8a4f1323d10bdb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x199A2 5388 bytes
font_01_sfnt_off0001abf9.bin
1650a3352bfcd0b82c733b06e7fbde32c3f2cb2ca81f757d3690d58df886209e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1ABF9 12104 bytes

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