Malicious PDF — malware analysis report

Static analysis result for SHA-256 93d2c546512505aa…

MALICIOUS

PDF

46.9 KB Created: 2020-08-20 03:53:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b671a770174b190f6b1f27c5cc745b4 SHA-1: 3e4764dfe69fa9302c60d19b496557d4315fabe3 SHA-256: 93d2c546512505aa07dbbd5f22faa67b20a2bdbc5b12915b1868fa99d9835ac3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a heuristic firing indicating it is a malicious redirector link, specifically pointing to a URL designed to lure users with a 'Sodexo application form' keyword. It also contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or redirection strategy. The primary malicious IOC is the ttraff.com URL, which is likely used to redirect the user to a further malicious destination.

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=sodexo+application+form
    • http://files.alininspirations.com/uploads/1/3/1/4/131453645/dacebe4e.pdf
    • http://bijoguse.bigbadbearband.com/uploads/1/3/0/9/130969747/gegavok-kigikumabadinif-viwusete-lavuvufawofavu.pdf
    • http://zubuv.thedropuk.co.uk/uploads/1/3/0/8/130873851/ruxuzadoxur_mavod_digojazemif.pdf
    • http://vemim.teamacorntriathlonclub.org/uploads/1/3/1/4/131453870/sebosa_zibumox.pdf
    • http://files.slocountymassage.com/uploads/1/3/2/6/132695388/9904169.pdf
    • https://cdn.shopify.com/s/files/1/0438/9981/4056/files/dojumomikozadafolej.pdf
    • https://cdn.shopify.com/s/files/1/0431/1053/1233/files/xabef.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/arrival_of_the_birds_instrumental.pdf
    • https://cdn.shopify.com/s/files/1/0428/6208/4262/files/harvester_drinks_menu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0740/9308/files/algebra_and_trigonometry_with_analytic_geometry_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0436/2010/6404/files/nespresso_essenza_mini_solo_capsule_machine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/fupelep.pdf
    • https://cdn.shopify.com/s/files/1/0433/7513/2821/files/fexuf.pdf
    • https://cdn.shopify.com/s/files/1/0448/8429/5847/files/toyota_diagnostic_trouble_codes_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0441/2178/4472/files/kemab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdf
    • https://cdn.shopify.com/s/files/1/0432/0470/6464/files/tiditopupogawu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3445/0840/files/50285417248.pdf
    • https://cdn.shopify.com/s/files/1/0437/8384/8097/files/56466184153.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_off00007857.bin
321755949bd7baad66ec092d8b82b4d17b25a72a7eef28f41716586463f13aa4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7857 5292 bytes
font_01_sfnt_off00008a44.bin
b2fadaf4c4fec5a7422e8f971033198ff9ee845225cdff03c2912f3aa6f7c122
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A44 10632 bytes