Malicious PDF — malware analysis report

Static analysis result for SHA-256 30d2ba48865d6057…

MALICIOUS

PDF

84.1 KB Created: 2020-11-10 17:53:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: c922cff24300aad8e557d3855d963c3c SHA-1: df03ef00f0e7ff0bcacff9b17472f6f35b42cb4c SHA-256: 30d2ba48865d605702bdc041373215ae3a031fe06fecb5362f64336f62922777
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafftec.ru/strik?keyword=cars+games+unblocked+77 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388293/normal_5fa621ba4e459.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427528/normal_5f9aeb477c45d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368503/normal_5f878c2c56c19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463010/normal_5fa47f117e9e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374211/normal_5fa323ef736c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402737/normal_5f937a82bbea9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408871/normal_5f9aa08534ab0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370053/normal_5f8a645cf0f15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403679/normal_5f9f62384e855.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://s3.amazonaws.com/tefelaj/letter_of_introduction_army_format.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/ossun_elementary_school_lafayette_la.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/talking_tom_2_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82afbff7-a447-4804-87c6-81a3aa726397/asus_vs247h-p_drivers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5abfa63b-f46f-4655-96f1-3fc11a7a5813/86070424580.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_off0000fee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEE8 5320 bytes
SHA-256: 285d140dc19a28ef07be7172885333ff56d892fadddfd13110d50b4246d7fab3
font_01_sfnt_off000110df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110DF 10860 bytes
SHA-256: 9ab047ce4865c07ea792f06a6051c67b3b0861333f62876645633fea8983ebb1
font_02_sfnt_off00013530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13530 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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