Malicious PDF — malware analysis report

Static analysis result for SHA-256 e188e2fad2cf4830…

MALICIOUS

PDF

42.6 KB Created: 2020-11-01 02:01:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 35cb8dffcf5dc28bb9472e89f926b4ce SHA-1: 646e8d34aebd35c3bf71f43821318a5653965fa6 SHA-256: e188e2fad2cf48300af864635f2c03513799d929e8003bb38e8b14938ac815da
102 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains text referencing 'Crossfire 2.0 manual patch' and the malicious URL, suggesting a lure to download potentially malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://cctraff.ru/wb?keyword=crossfire%202.0%20manual%20patch%20august%202018 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369659/normal_5f892b06b9306.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/erico_cadweld_molds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2374/4674/files/xasilizamifogi.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/60018201544.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/planet_centauri_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1948bcb3-18ae-41de-9313-cf60ddb7f093/11229555193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/2509/3554/files/prescott_unified_school_district_facebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee8e29cf-81c6-4317-8ae1-bfdd39c18860/vixavegokolitizavajot.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/84989633737.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e74d91de-a3ad-44e3-aec8-46829982524b/vebavewix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ef53286-aaac-4784-86e5-5eb1313766de/65886880031.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/573_area_code_map.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/dolby_digital_apk_for_nokia_6.1_plus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65b8f3b3-17a2-4431-8eca-e35175cc0cfc/wusaxewelola.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_off000063f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F2 5888 bytes
SHA-256: 9c78e490bdeaf366ee63081cad4e9c2de9fb9257b1c463023ac3565bfdf717c2
font_01_sfnt_off000077d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D9 11232 bytes
SHA-256: e7272142c94f2db5c39285251a8e29a04d2c3b41856491b528a23f1127f5c0ed

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