Malicious PDF — malware analysis report

Static analysis result for SHA-256 f72a5cd5fd7413bd…

MALICIOUS

PDF

40.5 KB Created: 2020-08-02 15:01:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55bbf99b8dd800d759122eb40091cf71 SHA-1: 53a96d1043c3aac032851222cd5f8e6dd294c251 SHA-256: f72a5cd5fd7413bda62fbb897ba7eb0b0260f15c893a3971cfc7218ae81c0f28
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.ru/pify?keyword=how+to+take+apart+an+xbox+360'. Another critical heuristic indicates a PDF link farm, with 'https://cdn.shopify.com/s/files/1/0432/6899/7283/files/wesibelobodin.pdf' being the first identified URL. The document body, though heavily obfuscated, contains references to these URLs, suggesting a social engineering attempt to direct users to malicious infrastructure.

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.ru/pify?keyword=how+to+take+apart+an+xbox+360
    • http://files.ruthveitch.com/uploads/1/3/0/7/130775510/2830746.pdf
    • http://files.activate-movetolearn.com/uploads/1/3/1/4/131438539/6050733.pdf
    • http://files.thelunarmandalacalendar.com/uploads/1/3/1/4/131437806/pekewelu-dukaxej-rezodunuge.pdf
    • http://files.designsbyshelagh.com/uploads/1/3/0/8/130874429/468421.pdf
    • https://cdn.shopify.com/s/files/1/0432/6899/7283/files/wesibelobodin.pdf
    • https://cdn.shopify.com/s/files/1/0431/3710/6087/files/the_art_of_seduction_review.pdf
    • https://cdn.shopify.com/s/files/1/0438/0390/2112/files/discord_profile_gifs.pdf
    • https://cdn.shopify.com/s/files/1/0431/9140/2660/files/keurig_k40_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/dakoxutavofijerabi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2722/4986/files/woocommerce_empty_cart_programmatically.pdf
    • https://cdn.shopify.com/s/files/1/0440/6103/2598/files/65698013417.pdf
    • https://cdn.shopify.com/s/files/1/0435/4631/2863/files/budamakan.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/sosiwum.pdf
    • https://cdn.shopify.com/s/files/1/0433/1172/6750/files/dopizo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4659/1895/files/17698180582.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/31540491572.pdf
    • https://cdn.shopify.com/s/files/1/0430/4958/2743/files/rusejuxepexo.pdf
    • http://upload.wikimedia.org/wikipedia/commons/c/c2/Xbox360_
    • 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_off0000604c.bin
5d97478280d95ec822a4925ea5f2b75c21fedec3df7fc95b1730920a7fc81e42
pdf-font-stream PDF embedded font (sfnt) at offset 0x604C 5388 bytes
font_01_sfnt_off000072bc.bin
e7f644bfa5239d1894c15d58aa7f97efd3e4c1df34d9cc2d3de0db979d6bebbe
pdf-font-stream PDF embedded font (sfnt) at offset 0x72BC 10048 bytes