Malicious PDF — malware analysis report

Static analysis result for SHA-256 a827b47201a14596…

MALICIOUS

PDF

111.5 KB Created: 2020-08-04 23:42:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a34aa7e0d3ed7422ae595d7e9fd97a0 SHA-1: 4896b65030eeb08ec3674c29f195cb54f974410e SHA-256: a827b47201a14596e62a32ad0ecc458d20f31404ddb25617e05bfdb165d9c151
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates an attempt to direct the user to a malicious site. Additionally, a PDF SEO link farm heuristic was triggered, suggesting the PDF is part of a larger scheme to generate traffic or distribute malicious content. The embedded URL in the document body confirms the presence of a link intended for user interaction.

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=facilities+and+equipment+of+arnis+pdf
    • http://files.sellingwithwilsonanthony.com/uploads/1/3/1/3/131381078/7235265ec5245.pdf
    • http://files.countyparkfriends.org/uploads/1/3/0/8/130814279/zobisulit_selitiga_sojinotavom.pdf
    • http://files.yackamoorundielandcaregroup.com/uploads/1/3/0/7/130738576/f55136849ebb37.pdf
    • http://files.sandracowan.com/uploads/1/3/1/6/131606687/nolufuzatujivebaj.pdf
    • http://files.terrellga.com/uploads/1/3/1/4/131453636/c5f987c9449c6.pdf
    • https://cdn.shopify.com/s/files/1/0436/9163/8934/files/watch_superbad_123movies.pdf
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/6135258942.pdf
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/pudem.pdf
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/82389598139.pdf
    • https://cdn.shopify.com/s/files/1/0439/1324/8923/files/79631511732.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.pdf
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/novup.pdf
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/49676699704.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/applied_linguistics_books.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/33057380376.pdf
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/pugaduw.pdf
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/vizobudaj.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_off00016208.bin
3ab51ffb718637d5a0fb49134aab3eb03facfbf39d9f0745b85efca6129c5b79
pdf-font-stream PDF embedded font (sfnt) at offset 0x16208 5384 bytes
font_01_sfnt_off0001743e.bin
8703f5aeef85f21570500efbe69124f76d556eb24f7fe3fe678e0cd2349ed7dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x1743E 10572 bytes
font_02_sfnt_off0001988d.bin
1a6b78d8a87bbd0a835fcdf72f4180e90659478caf3b6b072715ca472a97d8c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x1988D 16772 bytes