Malicious PDF — malware analysis report

Static analysis result for SHA-256 c260f602d6177a98…

MALICIOUS

PDF

50.7 KB Created: 2020-08-10 13:06:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a7d625d65bbce06f6c026f89a37f371 SHA-1: ea5ff6984e0a3c27c2828818aa7a3fdc800f7a46 SHA-256: c260f602d6177a988093f88e5d4c52705770446e2f54e29987a98ba0ab8da9e3
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=frases+comunes+en+ingles+pdf', which is also flagged as malicious. The presence of multiple links, including those pointing to potentially compromised Shopify domains, suggests a link farm or phishing attempt designed to redirect users to malicious content.

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=frases+comunes+en+ingles+pdf
    • http://files.contetimothyportfolio.com/uploads/1/3/1/4/131438464/ed6c4.pdf
    • http://files.shcni.com/uploads/1/3/1/8/131856391/2165705.pdf
    • http://vugavidov.missinginamericaproductions.net/uploads/1/3/0/9/130969060/2a11143abc7f1.pdf
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/vefelutazopobufidepe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/fopizutexigatifelitejo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/75172002374.pdf
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/jawbone_icon_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3029/0327/files/96017044780.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/gezukijuxadumupedero.pdf
    • https://cdn.shopify.com/s/files/1/0440/3937/2965/files/infecciones_causadas_por_bacterias_anaerobias.pdf
    • https://cdn.shopify.com/s/files/1/0430/8326/8263/files/japejisaxafifetetimelivid.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sujaxitedidubabupopivup.pdf
    • https://cdn.shopify.com/s/files/1/0446/2179/1395/files/spoken_english_course_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2155/7147/files/statistical_process_control_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sividejujim.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006154.bin
46d4ba80d911f8d2f46c6bd3d930bb9ecd62d09b6ad668bffec61c150a69cd53
pdf-font-stream PDF embedded font (sfnt) at offset 0x6154 5432 bytes
font_01_sfnt_off000073a8.bin
9dc6a836f8e00bac9f79f503d7a731b85480a92c5140448548983eb4e29e3e9e
pdf-font-stream PDF embedded font (sfnt) at offset 0x73A8 2740 bytes
font_02_sfnt_off00007f7a.bin
101568611c65ceb526295c1743dd90213d87d07ea542ff6bc39f576bfb8f4e5c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7A 11076 bytes
font_03_sfnt_off0000a3be.bin
b1034e4393bc08f65e549c3e77f845161d46db669b29a37ed6b570a8ff51c270
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3BE 16920 bytes