Malicious PDF — malware analysis report

Static analysis result for SHA-256 45a4bb391a1b3768…

MALICIOUS

PDF

66.3 KB Created: 2021-01-08 16:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 592644217645e103625b1ca66342dcab SHA-1: 67b90bb3cbe7841d7d675f56e0f66d33b354a5e0 SHA-256: 45a4bb391a1b37684e76a6d21c1b84609e9d34a8bac8ffcfca93314b2d78d2cf
154 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 'ggtraff.ru'. ML classification and ClamAV also flagged this file as malicious. The embedded URL is likely intended to lure the user into clicking and visiting a site that could host phishing content or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/aws?utm_term=android+auto+icona+whatsapp In PDF document text
    • https://cdn-cms.f-static.net/uploads/4454056/normal_5fa1c8b995087.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378599/normal_5f8a48c773945.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411498/normal_5fd939530e3a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375077/normal_5f90d1b53edbc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/627d4dbf-f17f-470d-8494-d2c89f808418/citra_emulator_download.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/amulets_and_talismans_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0c3e379-ce66-4973-b0fb-9007f255f546/devezovazo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d427d41-63a3-4855-bda2-4fe5e9cb650e/neuroscience_for_dummies_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/580de945-7aff-4fa4-939c-5528a224cf24/26145439588.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/betway_android_app_india.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/36947683929.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/kafiwuxegebipex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55fd0e47-706a-422a-9dd7-99c259bfd9d4/the_originals_books.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/pupugidonopagut.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_off0000c5fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5FD 5212 bytes
SHA-256: 71d8ce8c52f9c2f30aa2189094573b25756127be79823c1e62c7774f482068f4
font_01_sfnt_off0000d7c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C2 11324 bytes
SHA-256: 00a6556156e711f3a1101345879eb3e6bde6709b7a161d0ba4e89a3453e6c707

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