Malicious PDF — malware analysis report

Static analysis result for SHA-256 92ba0c58fae7ceb0…

MALICIOUS

PDF

73.9 KB Created: 2020-08-19 00:43:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b069eb62eaed3dbea73d34ea076899be SHA-1: c908e7a67b2ddc46cf52252615e3a49ef59b76ef SHA-256: 92ba0c58fae7ceb0ad31b5dfeffe66729d9626587b387b94c8b59abb91f3f775
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing for a PDF link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL pointing to 'ttraff.com', which is flagged as malicious. The presence of a PDF link farm further suggests an attempt to distribute malicious content or redirect users to phishing sites. The overall pattern indicates a social engineering lure to drive traffic to malicious sites.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=the+flash+barry+allen+comics
    • http://files.mountainmattressaz.com/uploads/1/3/0/7/130776275/besunigutixo.pdf
    • http://jodaw.joannegervais.net/uploads/1/3/0/8/130813478/2217103.pdf
    • https://cdn.shopify.com/s/files/1/0436/4858/1782/files/febumejadamupomerekevi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/fobalusemugiv.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8383/files/solidworks_sheet_metal_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90685913575.pdf
    • https://cdn.shopify.com/s/files/1/0437/7110/1338/files/44774355235.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/lujuxekafanafategiwozego.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/63125173936.pdf
    • https://cdn.shopify.com/s/files/1/0434/1497/8718/files/53805924602.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/miredolanabaxufege.pdf
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/97290954505.pdf
    • https://cdn.shopify.com/s/files/1/0428/5156/5724/files/72869962102.pdf
    • https://cdn.shopify.com/s/files/1/0430/7809/0901/files/7940986927.pdf
    • https://cdn.shopify.com/s/files/1/0433/5743/8101/files/functional_programming_patterns_in_scala_and_clojure.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_off0000e50a.bin
647825c72d0342bc2dca85792fdd315208c2344ed5c94a4744169b5de4fa90fe
pdf-font-stream PDF embedded font (sfnt) at offset 0xE50A 5312 bytes
font_01_sfnt_off0000f6f0.bin
4596eb6c758aac156aa4a8c0cc3813f0e80e823cef9cca2ee19249f1e55e7888
pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F0 10460 bytes