Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1acf31a6c006e43…

MALICIOUS

PDF

33.6 KB Created: 2020-11-02 20:20:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b14e5e9b2a8985c8ab3f3d9b286e3f0 SHA-1: 602ff983f72c22ededa1bb779e9ed46a28e8b5b1 SHA-256: f1acf31a6c006e433b3063ae16f8b264aeee58474641459d52a001e3acf513c5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to Weebly-hosted PDF files, indicating a link farm or SEO spam operation. One of the embedded URLs, 'https://gettraff.ru/aws?keyword=words+with+shingle', is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lure users to malicious sites, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://gettraff.ru/aws?keyword=words+with+shingle
    • https://disaxugotusineg.weebly.com/uploads/1/3/1/8/131871710/5096918.pdf
    • https://desaviguwogo.weebly.com/uploads/1/3/1/8/131871994/begovitoz.pdf
    • https://gosasomaf.weebly.com/uploads/1/3/4/3/134370397/vomubexi.pdf
    • https://pezosoxebigaxox.weebly.com/uploads/1/3/4/3/134337327/3009425.pdf
    • https://monotuwisax.weebly.com/uploads/1/3/4/5/134589760/niwelixasi.pdf
    • https://gajokemijibefe.weebly.com/uploads/1/3/4/4/134467094/7170917.pdf
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/0d5dafb7.pdf
    • https://kekerisasil.weebly.com/uploads/1/3/0/7/130775365/16eb3cd9e365.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0499/2191/7086/files/ultimate_intrigue_pathfinder.pdf
    • https://uploads.strikinglycdn.com/files/1b3b003a-d744-4646-97fb-36f62c8fcd2e/45619307572.pdf
    • https://uploads.strikinglycdn.com/files/22afaaa8-d3b1-44df-ade4-31af65fe0ae1/felomogadokazuk.pdf
    • https://cdn.shopify.com/s/files/1/0507/2057/1570/files/unblocked_games_run_3_unblocked.pdf
    • https://cdn.shopify.com/s/files/1/0440/2321/8341/files/beauty_plus_pro_mod_apk_download.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007636.bin
1675c9c17b01484caa25b2bf890288c9cc1e1830e83445200d5161f44ae449a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7636 4980 bytes

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