Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbfb2dbafe70f971…

MALICIOUS

PDF

54.4 KB Created: 2020-08-21 12:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11e89762bd0e3d496e52e09f7c1a8aad SHA-1: ae0bc748c51249b4f201c94604f35671de31b8b5 SHA-256: dbfb2dbafe70f97170c51bf940dfde5dc8cb99e1ffda750ab9904f242e5f2834
160 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that, combined with the heuristic firings, strongly suggests an advance-fee scam lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=boska+komedia+dante+alighieri+pdf, which is likely used to redirect the user to further malicious content.

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.cc/pify?keyword=boska+komedia+dante+alighieri+pdf
    • http://files.blackngreenphd.org/uploads/1/3/1/3/131380688/sajijomulele-lafug-dagafevemope.pdf
    • http://files.newlightfotodesign.com/uploads/1/3/0/8/130813111/7154933.pdf
    • http://xofogoje.sheeptales.org/uploads/1/3/1/3/131380739/449ebe.pdf
    • https://cdn.shopify.com/s/files/1/0439/4336/2715/files/annotating_a_book_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/archeology_of_knowledge_michel_foucault.pdf
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/piwutenuloli.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/cantico_di_frate_sole_testo.pdf
    • https://cdn.shopify.com/s/files/1/0436/1119/3501/files/factors_affecting_prenatal_development.pdf
    • https://cdn.shopify.com/s/files/1/0430/6652/3809/files/preeclampsia_and_eclampsia_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/7716/3416/files/dipew.pdf
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/patofokubilis.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/rujunanugusutesitijavep.pdf
    • https://cdn.shopify.com/s/files/1/0430/4342/2359/files/nisopowawikofokexemawop.pdf
    • https://cdn.shopify.com/s/files/1/0437/1424/8857/files/the_cask_of_amontillado.pdf
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/66574991576.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_off000089b1.bin
9214b9617c87f1b6acb2d8517a2637037ac5db4e99902c3feaecf52067bc621a
pdf-font-stream PDF embedded font (sfnt) at offset 0x89B1 5356 bytes
font_01_sfnt_off00009bb5.bin
a8d59450983661bedd3141d6b6cc4334791f8cbaeb86351af58906e23e830aad
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB5 10248 bytes
font_02_sfnt_off0000bea0.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xBEA0 4324 bytes