Malicious PDF — malware analysis report

Static analysis result for SHA-256 565f2fb9ea66c6f0…

MALICIOUS

PDF

42.2 KB Created: 2020-08-23 00:08:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 780968582304d898c6de5727ec8798b0 SHA-1: ab9bba874b1a2be7202519d74b0bd7384a8a8ba2 SHA-256: 565f2fb9ea66c6f02a0bd80681735497d972d5c4925b4bf7b697e19b7105246c
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, masquerading as a sleep meditation script, with the primary goal of redirecting users to malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identifies a link to ttraff.com, which is known for malicious redirection. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=guided+sleep+meditation+script, reinforcing the lure. The presence of numerous other links, identified by PDF_SEO_LINK_FARM, suggests a link farm or SEO poisoning tactic to distribute the malicious PDF.

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=guided+sleep+meditation+script
    • http://files.rsvpvolunteercaregivers.org/uploads/1/3/2/6/132681824/navate.pdf
    • http://kugivivog.ritecookware.com/uploads/1/3/1/4/131453960/f43badd.pdf
    • http://files.diasystem.se/uploads/1/3/0/7/130739227/6c7f4d16155.pdf
    • http://murux.ractproductions.com/uploads/1/3/2/6/132682883/faf998267.pdf
    • https://cdn.shopify.com/s/files/1/0436/5837/9417/files/angle_of_elevation_and_depression_questions.pdf
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/falukib.pdf
    • https://cdn.shopify.com/s/files/1/0434/0203/5352/files/94553006486.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/jamolakilititez.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/legepikub.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/sunuxu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4502/7993/files/lajifu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4406/8773/files/32354189477.pdf
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/graphic_design_services.pdf
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/wovuxorulom.pdf
    • https://cdn.shopify.com/s/files/1/0432/9655/5168/files/xbox_360_controller_driver_windows_10.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_off000067a0.bin
b05a360f081ba175ee6c6060a67a5e6929334afe9f4d1d8139fddaac75db3e6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67A0 5252 bytes
font_01_sfnt_off0000795c.bin
c721f773697ee958844416e8ea14c6bc062f9bb5749f65388ccc2fef851be4b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x795C 10076 bytes

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