Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a96301c8fee4f8c…

MALICIOUS

PDF

96.6 KB Created: 2020-12-26 14:28:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 143989b8870dc86eac32ef604bd0349c SHA-1: 4ebdbe2928ecf1d842af4b8ee95c92d11a51ce92 SHA-256: 3a96301c8fee4f8c2fc37cdeb53dc7067b19aee0ce69ed7b2586edef55f1f0f0
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the PDF detection suggest it is designed to exploit users through social engineering, likely as a phishing lure.

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://traffnew.ru/123?utm_term=cel+shaded+animation+films PDF link annotation
    • https://wefapewirevuvik.weebly.com/uploads/1/3/4/6/134667644/wedasu_tanugazapojuz.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/nesubine.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489411/normal_5fb8e1fa04669.pdfIn PDF document text
    • https://ludopugadataz.weebly.com/uploads/1/3/4/7/134709803/sogomomupow-gesizesurabebum-joxisenibonis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383921/normal_5f949645dc13c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382784/normal_5fc87a87c29da.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490752/normal_5fc858f5a1bd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381536/normal_5fc22986ed966.pdfIn 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/cbad82c4-bb6e-4eb2-9819-413629483d23/44437866958.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/bachelor_thesis_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/046f636e-2148-4449-9fc1-6c1a3d7b97a4/maytag_gemini_double_oven_manual.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_off00013f06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F06 4956 bytes
SHA-256: cf2998767723fa408baf7aa1149d577c4ca694e93a96c1512d0f100b4e057a15
font_01_sfnt_off00014fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FB9 11308 bytes
SHA-256: 25acce1c59f6b2cf29bd8adfe9a66a9ed60e06d22e7f416e8c782a9c4d9c799a