Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e594657d513eaf0…

MALICIOUS

PDF

32.6 KB Created: 2020-11-01 22:19:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 441f37d6a5fd12d2488f6e6bbdd12898 SHA-1: 7a224ef93bf5702a4d0dd96cb5bb313ccf9e7929 SHA-256: 4e594657d513eaf03b703da91c33ed12aebc1c36ef2fdc5c68c83da6082de75e
92 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://ggtraff.ru/aws?keyword=retrofit+guide+azur+lane, is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the malicious URL suggest an attempt to lure the user to a compromised site, likely as part of a phishing or malware delivery chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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=retrofit+guide+azur+lane
    • https://cdn-cms.f-static.net/uploads/4384304/normal_5f913d461bffd.pdf
    • https://nipefewemaxu.weebly.com/uploads/1/3/4/3/134387654/lugef_sisidusiruzu.pdf
    • https://cdn-cms.f-static.net/uploads/4380699/normal_5f8c271039602.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0501/5643/7665/files/bubizipopowefokupumijaz.pdf
    • https://uploads.strikinglycdn.com/files/1a17b99f-183e-4c0e-8a27-9f4bde92c11c/98275403316.pdf
    • https://cdn.shopify.com/s/files/1/0437/9813/4941/files/michael_oher_wife_net_worth.pdf
    • https://uploads.strikinglycdn.com/files/425f13b6-1445-4753-b829-ae3851b63422/24685694934.pdf
    • https://cdn.shopify.com/s/files/1/0492/2212/3686/files/71015769946.pdf
    • https://uploads.strikinglycdn.com/files/d6b9989f-faee-4f8a-a8d1-bc95b62a6d06/3.00_x_108_m_s_to_mph.pdf
    • https://cdn.shopify.com/s/files/1/0441/3816/8472/files/movoravaluke.pdf
    • https://cdn.shopify.com/s/files/1/0500/0347/6640/files/auto_click_apk_android_6.pdf
    • https://uploads.strikinglycdn.com/files/16582206-5b79-4990-bb43-af95bab723be/payed_vs_paid_attention.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066e4.bin
507c0e1528e8691f588a3d350f1955d473fdb4d86cf563e939097f112fa3c154		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66E4 3308 bytes
font_01_sfnt_off000072a6.bin
d27c439f44edbf70cf5f09d8cb47183a7b4738844b732e365a8280404c3c3a54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72A6 4952 bytes

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