Malicious PDF — malware analysis report

Static analysis result for SHA-256 e34403a8a7ace6de…

MALICIOUS

PDF

38.6 KB Created: 2020-08-23 02:46:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42438d3a8373aa0acb913b7ada02b555 SHA-1: 19bfe70baa482927cdfb085587af098767853ce0 SHA-256: e34403a8a7ace6de5de57abe61593b159b52946692a8b7ca4608767fa671d535
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=alfa+laval+plate+heat+exchanger+calculation'. This suggests the document is designed to lead users to malicious sites, likely for phishing or to download further malware. The presence of a link farm further supports this 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=alfa+laval+plate+heat+exchanger+calculation
    • http://files.thegoldenpegasus.com/uploads/1/3/0/7/130740589/bedebizumafojew-denifujikadepa.pdf
    • http://files.2ndchancehypnotherapy.com/uploads/1/3/0/7/130739651/nokugowug-dukob.pdf
    • http://rabumudo.turnbullphotographyart.com/uploads/1/3/1/6/131637240/jalezetijixes.pdf
    • http://files.rachelmoretti.com/uploads/1/3/1/0/131070872/sesazigeras.pdf
    • http://files.msubsm.com/uploads/1/3/0/8/130814126/802616.pdf
    • https://cdn.shopify.com/s/files/1/0434/3493/4429/files/66165293020.pdf
    • https://cdn.shopify.com/s/files/1/0437/9423/5553/files/bofiwatoselimazateruvojo.pdf
    • https://cdn.shopify.com/s/files/1/0437/5887/8872/files/65129558019.pdf
    • https://cdn.shopify.com/s/files/1/0439/3828/3678/files/bunasusiralebidosewepog.pdf
    • https://cdn.shopify.com/s/files/1/0433/9492/4700/files/wodida.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/lixoxuvewawemovemonuzojuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41841620016.pdf
    • https://cdn.shopify.com/s/files/1/0434/0000/3747/files/tubasupefagin.pdf
    • https://cdn.shopify.com/s/files/1/0429/8460/3801/files/rational_fasting_challenge_elliott_hulse.pdf
    • https://cdn.shopify.com/s/files/1/0434/5341/5576/files/gesadaromawexifudujobuvo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3377/9611/files/when_do_you_use_binomial_and_cdf.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_off00005a84.bin
e6570568898251a24d8b2e3b1eb85a79c5337af06af8936c720bb015b7c3cfb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A84 5216 bytes
font_01_sfnt_off00006c47.bin
96f594b03046462b1043e7590e01e0a1f93e73c2bbcb59fad6b49d3beffbe8df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C47 9728 bytes

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