Malicious PDF — malware analysis report

Static analysis result for SHA-256 c330308a9d7629c0…

MALICIOUS

PDF

85.6 KB Created: 2021-03-26 02:53:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 78d71703a4a38931e1d8c8271c2ab74b SHA-1: 7df605ae183cd06ae3c5e98b3c6e5225436952f9 SHA-256: c330308a9d7629c06d92d22d9072bdf5dcda1afb2fbf3d01836391e1c660e830
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous embedded URLs, with one prominent URL leading to a domain associated with a potential scam or phishing attempt. The document body, though partially corrupted, contains text related to a 'Wahl beard trimmer power supply', suggesting a lure to a fake product page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/strik?utm_term=wahl+beard+trimmer+power+supply PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4497695/normal_60006688272cd.pdfIn PDF document text
    • https://sovuzozasofebod.weebly.com/uploads/1/3/4/3/134343281/jibukomifati_mifipi_gikeg.pdfIn PDF document text
    • https://zubisixoligifi.weebly.com/uploads/1/3/4/4/134479514/nozavikev-texunadiluki-tamebap.pdfIn PDF document text
    • https://kuwovuvonix.weebly.com/uploads/1/3/5/9/135971109/depiwumuvizu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418399/normal_6044dc74cbaac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465949/normal_6001cdd821045.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497372/normal_602105d548a3b.pdfIn PDF document text
    • http://tulumiv.medianewsonline.com/luxitebakomawubafipogulog.pdfIn PDF document text
    • http://zisezamerares.mygamesonline.org/avgas_msds.pdfIn PDF document text
    • http://sodowetan.mywebcommunity.org/inglourious_basterds_script.pdfIn PDF document text
    • https://www.alzashop.com/hair-beard-trimmers/wahl/18850388-v638In 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/6ccb6818-943a-4095-a6dc-04a2316dff6b/soboruwodizag.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/jefexexojeg.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/pumizotazusubed.pdfIn PDF document text
    • http://rovizomaguwex.atwebpages.com/25443634436.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9f844ce-2a89-47c1-89e9-2d19db763aad/lenuzuke.pdfIn PDF document text
    • https://c4e42e93-254c-4ba8-b495-737f84002742.filesusr.com/ugd/ddb60a_57e447561da6487f967d0ccd264c3b10.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/0039618f-914e-4802-9922-f05645a132fa/tuvolozilarotip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17722cda-6f45-4bbc-b04d-39ea6e615b44/links_awakening_turtle_rock_gameboy.pdfIn PDF document text
    • https://770ad53b-b55e-4e58-b1eb-3709f41304f7.filesusr.com/ugd/98e298_5da7cefcd3af4c4f820fd3c68e855abf.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fovezewi/2600472049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffb8644e-ed9f-4edb-9f1e-e8e0d523a83e/wojelava.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_off00011134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11134 5544 bytes
SHA-256: d00ed5a531dc6f67c6de573e9d2d5ef8c95791b00959db912a89a5e2e69334df
font_01_sfnt_off000123f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123F3 11144 bytes
SHA-256: 230f1ebf4721b5d4f7c42c0fd7d4d67f049e1c955c2a71d5062cde3719d58457

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