Malicious PDF — malware analysis report

Static analysis result for SHA-256 9299f9db4e5a8fd5…

MALICIOUS

PDF

44.2 KB Created: 2020-10-30 18:41:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22ffa0f596b828168614a8452d9f9705 SHA-1: 80bb9987f8a22ed7a24bf5323f8c259d5fa16da5 SHA-256: 9299f9db4e5a8fd57e7a95710a2426bd652851f046d1920d9d5e9ff4e25ac37b
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/123?keyword=via+ferrata+wv+accident'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same malicious URL, indicating its likely purpose is to lure the user to a malicious site.

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/123?keyword=via+ferrata+wv+accident
    • https://cdn-cms.f-static.net/uploads/4376599/normal_5f8a7c7aa84a1.pdf
    • https://cdn-cms.f-static.net/uploads/4365545/normal_5f8704be73d2b.pdf
    • https://cdn-cms.f-static.net/uploads/4366327/normal_5f87d5decdb9e.pdf
    • https://cdn-cms.f-static.net/uploads/4403557/normal_5f912a4974220.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/8262/6710/files/wijumorawowoxivemexe.pdf
    • https://s3.amazonaws.com/dazutun/57605486685.pdf
    • https://cdn.shopify.com/s/files/1/0500/8962/3723/files/absceso_periodontal_tratamiento_antibiotico.pdf
    • https://cdn.shopify.com/s/files/1/0266/8632/4908/files/demixaradinizedimetuzefem.pdf
    • https://uploads.strikinglycdn.com/files/434637a5-413d-46ac-b06c-9dbd80631e4a/jobelurogulabanawikul.pdf
    • https://cdn.shopify.com/s/files/1/0486/4219/5624/files/order_of_operations_with_exponents_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0464/1210/3848/files/farberware_air_fryer_toaster_oven_instruction_manual.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070c2.bin
f5052c4f218bb5319337ec7e3c3e9ce0b21a0e5441ee5d0d758ed645a8773886		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70C2 4920 bytes
font_01_sfnt_off000081af.bin
dadaad3fec9c6da40419863cc87e7cd0d8735dee6c889bf4ee2571799833ffe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81AF 10240 bytes

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