Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb6420ce8f110d70…

MALICIOUS

PDF

68.7 KB Created: 2020-11-19 00:06:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8d19e09776b0e8b61e4078d136a31486 SHA-1: 1ed915a0c95e25e2a089e05dc77d024a260543ef SHA-256: fb6420ce8f110d70ca53131cb91dc152b2d63b62f492c2c9c3f06c19f46644c0
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://gettraff.ru/123?utm_term=quotes+about+bee In PDF document text
    • https://pogedufofow.weebly.com/uploads/1/3/4/5/134512351/magujuzivaj.pdfIn PDF document text
    • https://fumifopimon.weebly.com/uploads/1/3/4/4/134464078/nasejevumokiruweloj.pdfIn PDF document text
    • https://sogovowezop.weebly.com/uploads/1/3/4/3/134324678/vesakaroxunexuro.pdfIn PDF document text
    • https://balomufe.weebly.com/uploads/1/3/4/5/134594694/vamubekizufiw.pdfIn PDF document text
    • https://domilejoxu.weebly.com/uploads/1/3/4/5/134529458/9841531.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/6661fc52-412d-49dc-b94b-09824664c96b/17501303554.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/simumipepigugo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f3de550-94cc-4dc2-86e3-77d84db65568/nememidudasagu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e93a69b1-14d4-46c9-8085-648e8ea9333b/64665644454.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14b4f3b8-2bb1-46ac-a8e3-e09c20ac9a6b/8736729295.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7070a908-43be-40b0-bc5a-eea4933b5c8a/23758894102.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/gw2_path_of_fire_builds.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_off0000d2c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C2 4752 bytes
SHA-256: 11c3e029f3260a7f3ef5dceb9166b492a470fae1229892b942881428d5ebc50c
font_01_sfnt_off0000e2fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FE 10356 bytes
SHA-256: bd2d71c61a27fa13627810b0168316eea145f7fa8152f5af01685626af25e845