Malicious PDF — malware analysis report

Static analysis result for SHA-256 357274f8ae176fbf…

MALICIOUS

PDF

34.0 KB Created: 2020-08-16 22:46:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d9b044132a71b7a3d37d864132474453 SHA-1: 7149c67d88510887a3059c3f3065a37fee78ccf7 SHA-256: 357274f8ae176fbf5ffeeff36c3fe3548ef7b2fdd84da804adec7a6a97e0eb8a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.003 Windows Command Shell T1204.002 Malicious Link

The PDF contains a malicious redirector link and a large number of SEO-optimized links hosted on Shopify, suggesting a link farm or phishing attempt. The document body also contains instructions to copy and paste content into a command-line interface, which is a common lure for executing malicious commands. The primary malicious URL identified is https://ttraff.ru/pify?keyword=eclipse+luna+ubuntu.

Heuristics 4

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=eclipse+luna+ubuntu
    • http://files.chocolatiermatisse.com/uploads/1/3/1/3/131381518/zupiposomotupupane.pdf
    • https://cdn.shopify.com/s/files/1/0432/9052/5849/files/liwolivireregogolel.pdf
    • https://cdn.shopify.com/s/files/1/0436/3167/3502/files/wiweviwedujudorabe.pdf
    • https://cdn.shopify.com/s/files/1/0430/4375/0049/files/tegobijifalisonezatenuno.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/gepapavemoxakuvabemutoju.pdf
    • https://cdn.shopify.com/s/files/1/0437/1329/8581/files/rofeliporofozanazivos.pdf
    • https://cdn.shopify.com/s/files/1/0430/0079/1191/files/autoplay_menu_builder_templates.pdf
    • https://cdn.shopify.com/s/files/1/0430/9277/0977/files/zitutemevasagaliza.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_off00004810.bin
01a0fb729caa3b1fa5433fab128a18d24ea3a837c97e10acd19ec9efe82b22d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4810 4928 bytes
font_01_sfnt_off000058db.bin
22cf221da113c51c4707893c8b943888feeea58e77bd9c46af72c05f8d83e948		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58DB 10260 bytes

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