Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f4888ed8add4f8c…

MALICIOUS

PDF

67.0 KB Created: 2020-11-25 00:06:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: e73b7a3770dea14df2865c146d60a681 SHA-1: 5275f66340069dda7f0fd88e66787b25ddbb7f72 SHA-256: 6f4888ed8add4f8ca17dc29a1a37a9efd4a5d0f56cf99ff196908f6f02bf7076
154 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating a phishing attempt. The embedded document body text, though partially corrupted, suggests a lure related to 'Pcr performance chip revamp installation instructions'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to a phishing or malware distribution site.

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://cctraff.ru/aws?utm_term=pcr+performance+chip+revamp+installation+instructions In PDF document text
    • https://buvudipugumop.weebly.com/uploads/1/3/4/8/134876529/luxitiludi-lesap-depurizuv-zomepiforot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463565/normal_5faba364ca6de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374847/normal_5f891ca83b884.pdfIn PDF document text
    • https://pekubitox.weebly.com/uploads/1/3/4/4/134477952/2a19bcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391327/normal_5fb5bd40d0c65.pdfIn PDF document text
    • https://lusekovipe.weebly.com/uploads/1/3/4/2/134234723/nijemufe_lawezovana.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412762/normal_5fa01dfdebaf6.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/30e41f2a-e7a9-42d9-8adc-790702527bf0/78588659210.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/spanish_to_english_dictionary_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/washing_machine_lint_traps_bulk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1be0d623-71b1-4520-b614-5b42de5d3bd9/troy_bilt_weed_trimmer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/juralugipifenonow.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/85709031464.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f82c4a84-f075-4810-82fe-82b7186ecf90/97976403618.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/susotafanediredesonije.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_off0000c935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC935 5316 bytes
SHA-256: fd518b312b348ef01b19b494033b215b3053dc3f6c6ae1ed58548eead36b2e54
font_01_sfnt_off0000db26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB26 10456 bytes
SHA-256: d745ec5b01852529f22834e37d0a8568be387e364e0771ad58c49c7e2f61f887

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