Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce03edf8e6bd211f…

MALICIOUS

PDF

71.3 KB Created: 2020-11-25 00:06:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 02e4efdb669304462c894e48068c05ad SHA-1: 9684ad8136cc3318debfd607fa220b158587b8ff SHA-256: ce03edf8e6bd211f34c9641e1eaaf09fc30d694440dc1a67798d192f4c76fc16
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous links to external websites, with at least one identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'Jpmorgan equity research reports'. The presence of multiple PDF links and the ClamAV detection strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffmen.ru/aws?utm_term=jp+morgan+equity+research+reports In PDF document text
    • https://fisizupesaxog.weebly.com/uploads/1/3/1/6/131636899/futevifulukipuva.pdfIn PDF document text
    • https://wavamabixalovag.weebly.com/uploads/1/3/4/5/134525364/41d3e.pdfIn PDF document text
    • https://xotogulil.weebly.com/uploads/1/3/4/6/134655180/8741803.pdfIn PDF document text
    • https://zowupenejanelaw.weebly.com/uploads/1/3/4/3/134397621/larelu-kobukek-jufasuwasubus.pdfIn PDF document text
    • https://rutobugexamaxip.weebly.com/uploads/1/3/4/5/134508198/ripuzoperagifi.pdfIn PDF document text
    • https://kowabimope.weebly.com/uploads/1/3/4/3/134359524/xaguborupinobaxil.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/b53e6326-1924-4f07-9a6b-a529ea15db8a/komef.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/3004838132.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/44271926853.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06928fcc-6a50-4995-ad7e-466be33408af/77211241773.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93465dff-c9b3-4d0f-b5f8-5769c69a7d33/kunedet.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/gabriola_bold_font.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/xenekusoselajonajeritoraj.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB44 5412 bytes
SHA-256: 70eddd432afd6935d9680dcbada79c9d70ef0b4394b4b55518ed5be7dd0f98f2
font_01_sfnt_off0000dd80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD80 10968 bytes
SHA-256: 384a569aa51250ed06f95014b62ccfa614434725081a3331e9f861485a916652
font_02_sfnt_off00010286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10286 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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