Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6c0ff8e586b2fdd…

MALICIOUS

PDF

49.8 KB Created: 2020-08-12 09:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8800027d9b034d4d64986542a0d18240 SHA-1: 166f23135d46cc5ea90c3fe7c8f538a0d800fc04 SHA-256: f6c0ff8e586b2fdddd2f6d30d1f90b027c6e53eca7e0c7020a8d2d7635142b17
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=destination+b1+pdf+b%25E1%25BA%25A3n+%25C4%2591%25E1%25BA%25B9p'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the malicious URL and other PDF links, suggesting an attempt to lure the user to malicious content. The presence of multiple PDF links and a redirector indicates a likely phishing or malware distribution attempt.

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=destination+b1+pdf+b%25E1%25BA%25A3n+%25C4%2591%25E1%25BA%25B9p
    • http://files.gelatobooks.com/uploads/1/3/0/7/130740521/taxigigel.pdf
    • http://zidoz.jimdonica.com/uploads/1/3/1/4/131438641/paviwadikozo_mesorapibujogat.pdf
    • http://files.leeacademia.com/uploads/1/3/1/4/131453267/mexiduroxized.pdf
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/23347005983.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62042090741.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/88832104338.pdf
    • https://cdn.shopify.com/s/files/1/0440/7505/7302/files/the_bluegrass_conspiracy.pdf
    • https://cdn.shopify.com/s/files/1/0431/9831/6705/files/enfoque_del_paciente_anemico.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5559/files/39050252613.pdf
    • https://cdn.shopify.com/s/files/1/0427/3415/7991/files/wivenifupojure.pdf
    • https://cdn.shopify.com/s/files/1/0430/5531/7149/files/network_access_control.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tokon.pdf
    • https://cdn.shopify.com/s/files/1/0444/3389/9686/files/biology_campbell_reece_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/1808/3742/files/kividamomegokurovazuro.pdf
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/58843878928.pdf
    • https://cdn.shopify.com/s/files/1/0437/0916/9815/files/materiales_no_metlicos.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bea.bin
36587df0ee50d2c860585b1e802b1ba0b27f35fc424a4be4e13934e52c694777
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEA 5656 bytes
font_01_sfnt_off00007e49.bin
cdd68f9ca3a8f9193b57df05be59f2b469f856b1158f3a899395a5e7058f7c02
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E49 10924 bytes
font_02_sfnt_off0000a290.bin
b9aad3ca9b6aa1c7f0a821f23ffce7a80702b15303e27e25760ff71272be23a9
pdf-font-stream PDF embedded font (sfnt) at offset 0xA290 16220 bytes