Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ac669377a65c8e…

MALICIOUS

PDF

193.9 KB Created: 2020-11-11 02:00:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: bda9110b14e50b2ddabba9ea300f53a7 SHA-1: 76e031c984f30e51aa190172da1ec946a8e3c6e3 SHA-256: e9ac669377a65c8e43503671623e753977d4bdd5dec9a9987b23e13a783e4fef
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 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://cctraff.ru/123?keyword=ddo+leveling+guide+2020 In PDF document text
    • https://rulomegujenuguv.weebly.com/uploads/1/3/4/3/134329868/melabitalilelaf_fesevilofobaxax.pdfIn PDF document text
    • https://sapakokejepudig.weebly.com/uploads/1/3/4/4/134457578/boloj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465694/normal_5fa3e99c221b2.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/xoxiditag_tebeg_rawoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5f95fa31740e9.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/zetituri/85387723311.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b82da446-b341-4705-84b2-9480caac12d8/sonny_3_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/watch_ufc_online_free_live.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/google_easter_eggs.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/53420856937.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/manual_lymphatic_drainage_therapy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1169a78b-c151-429c-ba15-d763be441546/32869091218.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_off0002c240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C240 4844 bytes
SHA-256: e407bac73e0e55d5b2f44e35a988f4beb16dec69acacb8c0e3fe171c03c08e63
font_01_sfnt_off0002d2e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2E5 11584 bytes
SHA-256: 4028f7edbb2e71e6d1949b3bf074faed339696310610bbc7e84d6b7c35d161eb