Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1bd8b806ce69c8…

MALICIOUS

PDF

45.1 KB Created: 2020-08-23 00:45:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90688fc6fda2bc7187273b3c17713083 SHA-1: 201d0a35601f49bc3d36627d6ce3499f57ff8f67 SHA-256: 2e1bd8b806ce69c832d8f8f04836e30d70ee0c4792239049e51ba72c888bba33
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used to create link farms for SEO manipulation or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body, though heavily obfuscated, contains a reference to the same malicious URL, reinforcing the malicious intent.

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=kubernetes+service+yaml+template
    • http://nakulare.brandito.net/uploads/1/3/0/7/130776008/c0512094658.pdf
    • http://files.leoslionsden.com/uploads/1/3/0/9/130969129/3304792.pdf
    • http://dujuke.arrowsmithchurch.com/uploads/1/3/2/7/132740480/1968ef76c5d0.pdf
    • https://cdn.shopify.com/s/files/1/0428/4986/1791/files/apicultura_moderna.pdf
    • https://cdn.shopify.com/s/files/1/0429/0750/0711/files/bein_sports_apk_for_android_tv.pdf
    • https://cdn.shopify.com/s/files/1/0431/4434/7799/files/jitexizewedilukil.pdf
    • https://cdn.shopify.com/s/files/1/0429/2447/4531/files/kumazibotajagewet.pdf
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/nevagonukuvenaminajeb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xovigaza.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/53688475384.pdf
    • https://cdn.shopify.com/s/files/1/0435/5771/6127/files/85460174158.pdf
    • https://cdn.shopify.com/s/files/1/0431/4592/0669/files/google_umgekehrte_bildersuche_android.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/
    • https://cdn.shopify.com/s/files/1/0431/4434/7799/files/jitexizewedi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073ad.bin
7ad74427db4c30089c977a4164c15ccb681471eb3e990944745969b1b5a378eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73AD 5352 bytes
font_01_sfnt_off000085d6.bin
3840dfa2888f705e4bba02a9319bb5b48c063e10fde8e6350493d64140f6d857		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85D6 9888 bytes

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