Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc8e236c35b60571…

MALICIOUS

PDF

38.1 KB Created: 2020-09-08 22:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 890ab07ac29e6d23a9952412c2de244c SHA-1: d118f223ab7f7f037b5ee0727665cf086055d258 SHA-256: fc8e236c35b60571dff475966a52032b15236e9cda1b366efc4069226f8142bb
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of these links, 'https://ttraff.link/pify?keyword=heart+sounds+and+murmurs+audio+free', is identified as a malicious redirector. The presence of a link farm and a malicious redirector suggests an attempt to lure users to malicious content, likely for phishing or malware distribution.

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.link/pify?keyword=heart+sounds+and+murmurs+audio+free
    • https://static.usrfiles.com/ugd/a13bc2_a8c12ebc9e9647099593308daa3f05d2.pdf
    • https://static.usrfiles.com/ugd/c4ccc4_6e3130ee0f344cd0bf0e3a2382519c9d.pdf
    • https://static.usrfiles.com/ugd/bfd78a_b55bee26d96e4adfa7df500b325ae809.pdf
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/55516293810.pdf
    • https://cdn.shopify.com/s/files/1/0431/7786/9476/files/house_of_night_betrayed.pdf
    • https://cdn.shopify.com/s/files/1/0441/2401/2696/files/15126904514.pdf
    • https://cdn.shopify.com/s/files/1/0437/4583/7208/files/honda_cbr_600_rr_2020_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/4755/0119/files/tata_durashine_sheets_weight.pdf
    • https://static.usrfiles.com/ugd/1b7c00_797ebf62a3be48b4a0b870feaf3b7f1d.pdf
    • https://static.usrfiles.com/ugd/062c90_b733e5b9cbdb47fdb7db6f3e94461a91.pdf
    • https://static.usrfiles.com/ugd/c75f60_d3838d9e3f4e4d0a8d65b4cab4db718f.pdf
    • https://static.usrfiles.com/ugd/9fc8c3_473e6f382cfc45d1b5e0152a7b2358aa.pdf
    • https://cdn.shopify.com/s/files/1/0431/3396/0341/files/alcoholismo_y_drogadiccion_causas_y_consecuencias.pdf
    • https://cdn.shopify.com/s/files/1/0460/7174/2628/files/isis_template_joomla.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/taylor_swift_22_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/66791506296.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_off0000581a.bin
4f1623ab8a6356a2eedf77857725dc70ef6cb4ffddf846d606a2445b8801f9bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x581A 4984 bytes
font_01_sfnt_off000068f1.bin
db3ca6a81f3fbb3b61bd77b3b84a32fe1169efdd7702a3784040e8c4ef56dd70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68F1 10136 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.