Malicious PDF — malware analysis report

Static analysis result for SHA-256 adb71f501493388a…

MALICIOUS

PDF

41.0 KB Created: 2020-08-22 01:40:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7eb0b106d1f42134d73dc96883e076ba SHA-1: ef1f12720527bc8425d668872f5b445177ae2979 SHA-256: adb71f501493388ae90f5eda1c40ac87777504144814dde28ecd6ebf0b20870e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=abies+pindrow+pdf' which is likely used to redirect the user to a malicious site. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt to distribute malicious content.

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=abies+pindrow+pdf
    • http://dopisum.afmmixer.com/uploads/1/3/0/7/130775052/wivifepatonejij.pdf
    • http://files.onepercentpr.com/uploads/1/3/2/6/132682739/tajosoxelabofu.pdf
    • http://files.midamericaairmuseum.org/uploads/1/3/1/6/131607805/63c050915.pdf
    • http://files.crossfitavon.com/uploads/1/3/1/0/131070313/nizawebifujo-debuliwobifisof-tasosisise-namefopomo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/17908817643.pdf
    • https://cdn.shopify.com/s/files/1/0432/8987/0491/files/arcgis_10._5_installation_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/6055/7974/files/gebejewizupavobavoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/2247/5687/files/pisovugupavutomil.pdf
    • https://cdn.shopify.com/s/files/1/0439/1131/5611/files/2533798892.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/banefidofekadozimodomi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6094/4286/files/accu_chek_performa.pdf
    • https://cdn.shopify.com/s/files/1/0435/9408/8611/files/the_buddhist_bible.pdf
    • https://cdn.shopify.com/s/files/1/0440/0742/4158/files/el_camino_de_la_cabala.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_off000060b5.bin
8daa7d5a80ed462328450dbc6818e45a5f235b4c127d7a6374ea923f31b2e117		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60B5 5012 bytes
font_01_sfnt_off000071d4.bin
44cae1cfab0b806af1ed40399409606e7ac19bd1e0be35bff02a60fb27845a9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71D4 11676 bytes

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