Malicious PDF — malware analysis report

Static analysis result for SHA-256 443310db2fdd71ca…

MALICIOUS

PDF

42.1 KB Created: 2020-08-31 21:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be3fa0e007ff599a580cef55e72bb211 SHA-1: 5b185139fa329275ab0c7709314c14374282b814 SHA-256: 443310db2fdd71cafa3a86126a36cadafc370348c0d21fc672720fd0ce47b929
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of embedded links, indicative of a link farm. The primary malicious URL identified is 'https://ttraff.link/wix?keyword=bible+genesis+to+revelation'. While no scripts were extracted, the sheer volume of links and the ML classification suggest a high likelihood of this PDF being used for malicious redirection, potentially leading to phishing or malware downloads.

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.link/wix?keyword=bible+genesis+to+revelation
    • https://static.usrfiles.com/ugd/b8c837_f1fe89458b6846199cd81dd7432a4906.pdf
    • https://static.usrfiles.com/ugd/e745be_c90973c07045458e9cd8a14dc6663350.pdf
    • https://static.usrfiles.com/ugd/b8c837_00d44119059045af8d821055747431c7.pdf
    • https://static.usrfiles.com/ugd/1decf9_004907adb70a4651b7c8fc42a4b18717.pdf
    • https://static.usrfiles.com/ugd/b8c837_55bf3f6d318a4a059be0e1e5e90bd68c.pdf
    • https://static.usrfiles.com/ugd/45fd81_1b1df5efcd144c29bcf64e5a79927826.pdf
    • https://static.usrfiles.com/ugd/b8c837_2b092887eafa442484de6f598e3e6a7b.pdf
    • https://static.usrfiles.com/ugd/704566_0f6dccaa2f7a4734bb9d5b2311556efe.pdf
    • https://static.usrfiles.com/ugd/b8c837_3b85c4984ff244058e65dd367f31e851.pdf
    • https://static.usrfiles.com/ugd/8b4172_512ae3c8c9e349e493e0ec78a56cbbda.pdf
    • https://static.usrfiles.com/ugd/7baf93_c59732619cab4d558d5f9ca3342cca9c.pdf
    • https://cdn.shopify.com/s/files/1/0440/9432/4888/files/15269756469.pdf
    • https://cdn.shopify.com/s/files/1/0440/0542/5310/files/backup_android_apps_apk.pdf
    • https://cdn.shopify.com/s/files/1/0431/6705/6023/files/what_is_atlantic_slave_trade.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_off000066b4.bin
8d724235916e9cdfc95c65be42d9d37385f2bbc19b8f5f813cb57b49d734f172		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66B4 5100 bytes
font_01_sfnt_off00007826.bin
ed457ca8bdf01cf990e9cf8b121efb6fa1a814aa1f46b3e9ef4f9bcb11ba0fc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7826 10464 bytes

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