Malicious PDF — malware analysis report

Static analysis result for SHA-256 c246ffa614761931…

MALICIOUS

PDF

89.5 KB Created: 2021-03-05 21:53:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: fe3a62c431e1d0a995d9405099dc7e6a SHA-1: 5972e0be9ed875433519c744bb1cb44d5ad76c98 SHA-256: c246ffa6147619318f7e1c9b32b660185257fc0b2d4d23878fefd1ee3cc2aae7
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were extracted, the presence of malicious URLs suggests the document is designed to lead the user to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://yafferge.ru/wix?keyword=phase+change+diagram+solid+liquid+gas In PDF document text
    • http://wonnaturila.space/70934588880gua5n.pdfIn PDF document text
    • http://tidirakozodawon.getenjoyment.net/how_to_clean_brother_printer_dcp-t500w.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498330/normal_5ff42ea49a4bc.pdfIn PDF document text
    • http://sufulilutidake.mypressonline.com/pretty_little_liars_the_perfectionists.pdfIn PDF document text
    • http://kesisofawa.mygamesonline.org/dejino.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/2017_ram_quad_cab_bed_length.pdfIn PDF document text
    • http://konobemozitu.iblogger.org/33527895536.pdfIn PDF document text
    • http://jinevul.mygamesonline.org/lang_leav_books_list.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375690/normal_60097b931e08a.pdfIn PDF document text
    • http://rovanenafet.getenjoyment.net/learn_how_to_code_with_scratch.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/buwaxupi.pdfIn PDF document text
    • http://tonagruz.ru/37179840866nb1ul.pdfIn PDF document text
    • http://bigmagazin.xyz/zuxegemomuresolol8tgf7.pdfIn PDF document text
    • http://nijaxubazaziw.mypressonline.com/65273032969.pdfIn PDF document text
    • http://stassikorskyi.com/77609879430set7c.pdfIn PDF document text
    • http://widalatipuna.22web.org/26752855855.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/jimugivos/freeze_panes_in_excel_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/24659479478.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/molemi.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/wuvorakox.pdfIn PDF document text
    • http://kimoviranonaf.onlinewebshop.net/rotuzasose.pdfIn PDF document text
    • http://kupikobu.epizy.com/63471383148.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/30807274072.pdfIn PDF document text
    • http://kametazita.rf.gd/savuxerele.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_off00012031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12031 5480 bytes
SHA-256: 9bc57e167b7b5cbf94cc4f2e73a4a22c5b00fd4512458694affe3ebfd59a3db1
font_01_sfnt_off0001329e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1329E 11008 bytes
SHA-256: 5066c2f85cc2b92ab850fc78e34a70f7199a80ebfb7ed8b47616d5c8118aa290

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