Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1afb0ac48cd04f…

MALICIOUS

PDF

43.7 KB Created: 2020-09-21 02:44:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67f1bc4d9ecae19f3e84debbb325a504 SHA-1: 8abe3d7d33475f99334575a242b6238c03257346 SHA-256: fd1afb0ac48cd04f4cab6eea79db698f44f0bcca687a9bcb27acd0af23a2d428
160 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to 'ttraff.club', suggesting a phishing or malware distribution lure. The document body, though garbled, contains the target URL and mentions a library, indicating a social engineering pretext. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document may also instruct users to interact with the command line, potentially to download or execute further payloads.

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.club/wix?keyword=sheridan+mall+public+library
    • http://zibesuwis.sonserae.com/uploads/1/3/1/8/131857758/99f70eb6.pdf
    • http://winas.recraftandrelic.com/uploads/1/3/0/7/130776255/vilumuzoke_topifejefuguve.pdf
    • http://zefivemax.rripmusic.com/uploads/1/3/0/7/130739415/5589798.pdf
    • https://f5679e81-dd95-4caa-ac08-004a71663b5f.filesusr.com/ugd/b7ed05_6d59cd43ea8b467b91f1aa4a1eb0740d.pdf?index=true
    • https://a4bc4f3c-aebc-436b-b185-cb193979bd54.filesusr.com/ugd/8e9e2f_3ffdbfa851c141989816cfc0c614938d.pdf?index=true
    • https://e1ae7539-25fb-4f1f-87ce-ee8a1b2f236a.filesusr.com/ugd/c57cae_89021125a03b4dd0aed458cd789177d5.pdf?index=true
    • https://12270b92-9f8d-4a1a-9a80-0a2ddffaec63.filesusr.com/ugd/1b7c00_a3d49b3ca40b40ad888a0286b7922629.pdf?index=true
    • https://59f4e777-948e-4ec9-9a67-dcfdb350eb3d.filesusr.com/ugd/98e2de_e520ee83b06443cca0dfbe57d523eef1.pdf?index=true
    • https://931ccd46-d89b-4cda-9e9e-0b696dac7abd.filesusr.com/ugd/ecd213_46e8854175184491888bcac8fecb94a3.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/craftsman_weedwacker_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/8531/4715/files/fikugite.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_off000060c9.bin
255f9a041a18ff5156be5d78481cb15338f80e13558e5dc8f69a6ce065ec4671		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60C9 5480 bytes
font_01_sfnt_off00007340.bin
6c14391824adecd3998ff9ec5f63c859c274dd1455e7b084a21eab1f78e9cbb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7340 15308 bytes

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