Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c1ce16b5d2f1eee…

MALICIOUS

PDF

74.5 KB Created: 2021-02-22 02:30:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: a03c2693cdb62926096a72ada04e9002 SHA-1: 55b50d94bf27b52705a397de199d9ec1c8b1ddd0 SHA-256: 2c1ce16b5d2f1eeea685fb7ac38b3703d49f263678cd36f55384799beeec739e
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The embedded URL `https://leonvi.ru/wix?keyword=continental+divide+ride+advrider` suggests a phishing attempt to redirect the user to a malicious site. While no scripts were explicitly extracted, the presence of embedded URLs and the overall malicious classification indicate a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://leonvi.ru/wix?keyword=continental+divide+ride+advrider PDF link annotation
    • https://vusuranozaxo.weebly.com/uploads/1/3/4/0/134012668/13cea846e8349.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502188/normal_5fecc6c3393d2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407781/normal_5ff9721795ec8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424996/normal_60245d48c4eeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447096/normal_5fffd4c6ce4fa.pdfIn PDF document text
    • https://xilowodasu.weebly.com/uploads/1/3/4/7/134742848/vasejasazuwi_kebaviwepisek_nuvosanotig.pdfIn PDF document text
    • https://jasujoru.weebly.com/uploads/1/3/1/4/131483343/4bcf39b30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393506/normal_602c3c91e29d2.pdfIn PDF document text
    • http://ponezivugatub.22web.org/tudinitojazuluso.pdfIn PDF document text
    • https://vekerarefatada.weebly.com/uploads/1/3/4/8/134868636/8122997.pdfIn PDF document text
    • https://wukajimodowel.weebly.com/uploads/1/3/0/8/130874313/kadovid.pdfIn PDF document text
    • https://rofovotojoroko.weebly.com/uploads/1/3/4/8/134878837/6345043.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405907/normal_6007748a6e7e3.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/vabemavuputenif/chronicles_of_crime_app_android.pdfIn PDF document text
    • http://lowazuxakosilal.epizy.com/amagami_ss_psp_game_english.pdfIn PDF document text
    • http://dunipuxok.rf.gd/cursive_writing_worksheets_abc.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/2713764771.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/85689398007.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_off0000e273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE273 4608 bytes
SHA-256: 6c2cd21862d91dd9aecaa9a75fb9b4ac9a0000feefc576a429f42f8aefd43e70
font_01_sfnt_off0000f22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22A 13412 bytes
SHA-256: 7db27c86abc0d023e5cde4b59e39b7590a1eae9d3b4fe75c3ac13ef2d443edec

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