Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd9c7db7f24ce122…

MALICIOUS

PDF

82.9 KB Created: 2020-08-09 09:37:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2a67a6d5a25dc9ad05f80301728bc29 SHA-1: 39a63dff425b2c5a4dc1b3375b6bdc5000dde8b5 SHA-256: cd9c7db7f24ce122fa7e8f684a27b86def8c1a64dfac964d0700e3228a323f90
150 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate resources, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a phishing or social engineering attack aiming to direct users to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=core+java+programming+questions+and+answers+pdf
    • http://files.coloradocowboycalendar.org/uploads/1/3/0/7/130775940/notupatabuza-baturo-gozonopon-ravino.pdf
    • http://files.thedetailerseye.com/uploads/1/3/1/4/131452935/lewuwixejudo-zebivunafe-xarejejo-muwinufe.pdf
    • http://files.highspeedhealth.com/uploads/1/3/1/3/131398419/xatani.pdf
    • http://files.bordercollieblog.com/uploads/1/3/1/1/131164425/3f90d.pdf
    • http://files.photoforanyoccasion.net/uploads/1/3/1/0/131070485/c9a2c018dcd.pdf
    • http://files.thedetailerseye.com/
    • https://cdn.shopify.com/s/files/1/0433/6022/3387/files/zajaselemem.pdf
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/92495584146.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98629167596.pdf
    • https://cdn.shopify.com/s/files/1/0432/8164/5736/files/60664000053.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ranugebiwuzejivuzuf.pdf
    • https://cdn.shopify.com/s/files/1/0439/6482/5758/files/fulujupeworividiwodub.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/zozumululusikuturojofox.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/18646120224.pdf
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/rekesenidawawivajaf.pdf
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/49711469136.pdf
    • https://cdn.shopify.com/s/files/1/0431/5833/9733/files/77626489681.pdf
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/jufedo.pdf
    • https://cdn.shopify.com/s/files/1/0435/9074/6271/files/sensory_perceptual_issues_in_autism_and_asperger_syndrome.pdf
    • https://cdn.shopify.com/s/files/1/0441/2915/7272/files/aprender_japones_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/1044/8798/files/50973238272.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_off0000f904.bin
9c8c3257d56b22b374c9073d2fdfe0ddec5835634d6821320c29e416d7717894		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF904 5588 bytes
font_01_sfnt_off00010c01.bin
97f759c290e37be82f7c4455f9ec6df6add50fe83b15876436a47131fb94e47f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C01 15988 bytes

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