Malicious PDF — malware analysis report

Static analysis result for SHA-256 32b97e315144afff…

MALICIOUS

PDF

95.2 KB Created: 2021-03-10 12:52:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 042deebb51479855040ea71cec8a7b62 SHA-1: dfc410eac14d8ed5a8af84b583e454b3277a4fae SHA-256: 32b97e315144afff1b3a643d6f8fa747ef1988f49b852bef42142b4f23334657
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a critical heuristic firing for ClamAV detection. A PDF URI heuristic points to the URL https://ponafet.ru/award?keyword=the+righteous+mind+by+jonathan+haidt+pdf, which is likely the primary lure. Although no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to redirect the user to a malicious site, potentially for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://ponafet.ru/award?keyword=the+righteous+mind+by+jonathan+haidt+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456119/normal_6016b3de5ab78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475212/normal_60029d319f44d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418381/normal_5ff3b0b7cc2fb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390071/normal_5fc5c51306c4e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385014/normal_5fec045b63e22.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486356/normal_5ff2a93b1c71f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453900/normal_6000d16dc1d16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469841/normal_6020392414ff3.pdfIn PDF document text
    • http://vujumitadasedi.22web.org/latex_rubber_sheet_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366014/normal_5fe48a0e21700.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418764/normal_601335ca59ce0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481068/normal_603ca90250a38.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://roromopenofo.epizy.com/bobaxeduwabasojofinid.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/14300541654.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cd284b5-a404-4969-94be-57cd81e1b020/90146294101.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf483d1e-b53f-490c-8e7e-e7af260d964d/micro_turtle_beach_420x_mic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39f2ec8f-1cde-4896-bba5-0726adcf2a13/navy_and_marine_corps_achievement_medal_citation_format.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/80918049345.pdfIn PDF document text
    • http://muxolisakij.epizy.com/2963246108.pdfIn PDF document text
    • http://mapexas.epizy.com/sheets_of_plywood_for_sale_done_deal.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/cannon_fodder_amiga_rom.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/79869042703.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/caste_validity_application_form_maharashtra.pdfIn PDF document text
    • http://vetetipusel.rf.gd/60130139577.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_off000137bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137BC 5692 bytes
SHA-256: 9fe57fbadbeaa4b1f5a1c8d5d2bb90bfb780ac5e443217de92933c928baf99c3
font_01_sfnt_off00014af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AF4 10576 bytes
SHA-256: 5c53d7e4183462e806198760b1fa34b14b07f75bed956ebcf4e7f913827c6f56

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