Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bb8f73effe0f4d7…

MALICIOUS

PDF

40.7 KB Created: 2020-09-11 03:48:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c5f5cfb445410253f57f6573bbba845 SHA-1: c9b772fd801a7083be0260667ac1b1c4a2e41011 SHA-256: 8bb8f73effe0f4d7d59f315c9dc2102a44d31cad166ee68a88b8aea6d32740c0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. One of the primary links redirects to a known malicious infrastructure at 'ttraff.me'. The document body, though heavily obfuscated, contains references to the same URLs, reinforcing the malicious intent. No scripts were extracted from this sample.

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/wix?keyword=jupiter+merlin+growth+factsheet
    • http://minixoj.sevdasfitnesstherapy.com/uploads/1/3/1/3/131378950/6e8097cf4f0685.pdf
    • http://kotebeza.metzteaching.net/uploads/1/3/2/7/132710575/9115122.pdf
    • http://pikiz.eliasmiller.us/uploads/1/3/1/3/131379179/5601911.pdf
    • http://files.blindinggray.com/uploads/1/3/0/8/130814387/4992408.pdf
    • http://gubufuw.reculturesg.com/uploads/1/3/1/3/131380600/xatigedafimaxe-pujirera-nulusu-zaxabo.pdf
    • http://files.hudsonvalleygoldsmith.com/uploads/1/3/0/7/130775784/dunukijumatavog.pdf
    • http://nazogigid.mxsnot.com/uploads/1/3/2/6/132681144/karipijalabavelamen.pdf
    • http://zalagi.alabamafanaticon.org/uploads/1/3/2/8/132815002/3402915.pdf
    • http://files.trilliumwildedibles.com/uploads/1/3/1/8/131871499/ranimiguzilovo.pdf
    • http://files.easecuritypatrol.com/uploads/1/3/1/3/131382134/f5668287194d.pdf
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/62539695870.pdf
    • https://cdn.shopify.com/s/files/1/0438/2733/1232/files/bamedovoxivuxomufezov.pdf
    • https://static.usrfiles.com/ugd/8bc2a6_55f4e6bb77df40459d4699da1de370fa.pdf
    • https://static.usrfiles.com/ugd/a2e20a_f856d521acfc4630b3480fbf8cae7aa2.pdf
    • https://static.usrfiles.com/ugd/5c9621_3bb16ed6d5be4474adcfb05f09a94bc3.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_off00005fde.bin
7c6712255ed4006c2c61186c338cbb166338cc25ec9e98d93634bf47bf95e8f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDE 5508 bytes
font_01_sfnt_off00007285.bin
e5c4b588e755c30061842a66253bf1ee7e4aeb7225bb0c07bf0998488942e5c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7285 10560 bytes

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