Malicious PDF — malware analysis report

Static analysis result for SHA-256 b19a93e1f6181a20…

MALICIOUS

PDF

399.1 KB Created: 2020-10-29 18:55:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 3f908e96da8c9e8f16065d869a5836ad SHA-1: 7bdf5441a8a862256f6f385eae5db7aefb8e4b8e SHA-256: b19a93e1f6181a20a7b6311365e8ca50639710562992d52ec853d0533aa9f26b
102 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The 'SE_URGENCY_LURE' heuristic further supports the phishing pretext. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://gettraff.ru/strik?keyword=complete+ranger%2527s+handbook+pdf In PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/4591805.pdfIn PDF document text
    • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/xidulugetewejik.pdfIn PDF document text
    • https://kemumapuvepuvi.weebly.com/uploads/1/3/4/3/134311950/6364236.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374024/normal_5f90d00591c4a.pdfIn PDF document text
    • https://moxoviwepikiwu.weebly.com/uploads/1/3/2/8/132814726/be7f7a662cf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2256/3520/files/72075702091.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b4f28bc-011f-4b85-8f23-6f102e33807b/miss_in_kiss_anime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2351/3778/files/linen_cocktail_napkins_on_a_roll.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9347/5742/files/wurasitumiposas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5043/4211/files/98777173185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/3737/4656/files/complete_sentences_worksheets_2nd_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04987bf0-f553-4cdb-a95a-41611d039eba/kaxopuguwejusibagawipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db56ca81-2842-42ba-81b8-c68d21ae62fb/xuligowokuzazopedak.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005f206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F206 5600 bytes
SHA-256: b2b0c05d6536493d85530be65ab429c7b7a3dc05039bb323a34101de78034a52
font_01_sfnt_off000604df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604DF 11408 bytes
SHA-256: a500d20d1ac06c66216ca218ee060a115fb8e0acc3c88f45da5cb1ccabf2c80e

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