Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a64dbd0b4bbc885…

MALICIOUS

PDF

34.7 KB Created: 2020-10-25 18:44:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86e6271bb93598ca3a3a4c04f96308c4 SHA-1: ff7598cfe34c268d0a41ae207137103e4a49ed6e SHA-256: 9a64dbd0b4bbc8859a25be7f5ea03023794dffa4beef4b622e26866f4c13e9da
92 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ggtraff.ru/aws?keyword=teori+behaviorisme+dalam+pembelajaran+pdf'. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of a malicious redirector strongly suggests an intent to lure the user to a harmful site, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 2

  • 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.
  • 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://ggtraff.ru/aws?keyword=teori+behaviorisme+dalam+pembelajaran+pdf
    • https://netaluzubik.weebly.com/uploads/1/3/0/8/130813777/6781803.pdf
    • https://cdn-cms.f-static.net/uploads/4384316/normal_5f8dd246c8a99.pdf
    • https://cdn-cms.f-static.net/uploads/4366388/normal_5f8bd71ee880e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0502/1673/0799/files/77551646458.pdf
    • https://cdn.shopify.com/s/files/1/0497/5008/1690/files/synthesis_and_decomposition_reactions_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0498/0044/6113/files/fox_13_channel_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/electrical_estimation_and_costing.pdf
    • https://cdn.shopify.com/s/files/1/0497/3366/4922/files/duel_at_araluen_weebly.pdf
    • https://uploads.strikinglycdn.com/files/7f9363e5-0b06-4620-be9f-19e3ac063b3c/44628400875.pdf
    • https://uploads.strikinglycdn.com/files/60e23f8d-d949-48ba-bd16-167fb611472c/eat_what_you_watch_free.pdf
    • https://uploads.strikinglycdn.com/files/868b1e5f-3fa1-448c-8bf5-a95d0f5af2e7/jobugisufiwa.pdf
    • https://uploads.strikinglycdn.com/files/dd9e542d-c9e5-46e3-8b9a-589badf1d2f2/civil_engineering_formulas_gillesani.pdf
    • https://uploads.strikinglycdn.com/files/e1ad9546-eb0f-4a26-a7d2-4e55bea003de/50324854053.pdf
    • https://s3.amazonaws.com/susopuzupure/android_studio_tutorialspoint.pdf
    • https://s3.amazonaws.com/kavitokolezub/tiwalanirupovevukive.pdf
    • https://s3.amazonaws.com/henghuili-files2/endodontics_principles_and_practice_free_download.pdf
    • https://s3.amazonaws.com/zetare/bingo_print.pdf
    • https://s3.amazonaws.com/fasanag/pdf_annotator_3_download.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066d4.bin
1f77692d6c95a90e9aa7a85397486a6f3f80c010ee30fd07207c0372e226437e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66D4 5508 bytes

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