Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e91e006526edab8…

MALICIOUS

PDF

44.0 KB Created: 2020-08-06 15:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b934803c87643e77375f840d9fe50d5 SHA-1: a09e0563986f25322e4bf3d51ee5948ab1096c61 SHA-256: 8e91e006526edab8437400f4592cf3a3600f24170995ad6d6fb78fd1549c9d8b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains a malicious redirector link and a large number of external PDF links, suggesting a link farm or redirection tactic. The document body also contains instructions that lure the user into copying and pasting content into a command-line interface, which is a common technique for executing malicious payloads. The primary malicious URL identified is https://ttraff.ru/pify?keyword=art+and+arcana+d+d+pdf.

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=art+and+arcana+d+d+pdf
    • http://files.razortattoos.com/uploads/1/3/1/4/131437246/wikuvusowagutovaji.pdf
    • http://files.thespeechspacedc.com/uploads/1/3/2/8/132814791/dupurovo_rasakud.pdf
    • http://files.achslinkcrew.com/uploads/1/3/1/3/131382032/5611395.pdf
    • https://cdn.shopify.com/s/files/1/0429/8070/4405/files/48587736437.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/xafimadafefuxofomebepek.pdf
    • https://cdn.shopify.com/s/files/1/0436/0981/7251/files/arterial_hypertension_articles.pdf
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/1620908393.pdf
    • https://cdn.shopify.com/s/files/1/0430/6593/3985/files/copy_file_terminal_mac.pdf
    • https://cdn.shopify.com/s/files/1/0432/8469/3160/files/tinuzasavedubizixe.pdf
    • https://cdn.shopify.com/s/files/1/0437/5989/4689/files/dozudinirilarot.pdf
    • https://cdn.shopify.com/s/files/1/0437/8257/0136/files/meliw.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9277/files/jopani.pdf
    • https://cdn.shopify.com/s/files/1/0438/8729/6680/files/southwest_media_college.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_off00006bac.bin
9b8e69aabcaa9f49a794dbb4ff46440ad61a199c3957c30fb66393b1fe002f3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAC 4928 bytes
font_01_sfnt_off00007c86.bin
1f30c26e583c3050a0b24ad1b361328d9ee8986ccfb0aae069c3b959f5900190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C86 10944 bytes

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