Malicious PDF — malware analysis report

Static analysis result for SHA-256 096a00f6e470042d…

MALICIOUS

PDF

82.8 KB Created: 2021-01-09 16:49:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: c83886590ce3447e44099a0ed07c9a6e SHA-1: 23e36a98372ef7b23c1db9b86c91f55ab3ed13bf SHA-256: 096a00f6e470042d004db2b0394e8ecb080a89419bc88f020677f9ee8c4f889d
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for link farms or phishing lures, as indicated by the PDF_SEO_LINK_FARM heuristic. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan. While no scripts were explicitly extracted, the presence of embedded URLs and the overall structure strongly suggest an intent to redirect users to malicious sites, likely as part of a phishing campaign or to download further payloads.

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
  • 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.
  • 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/aws?utm_term=bellini+oven+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485156/normal_5fd96a8325e07.pdfIn PDF document text
    • https://tozafutesaf.weebly.com/uploads/1/3/4/9/134900259/6e5a231acb87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381543/normal_5faaacb000944.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5f8e4de6bf3cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467915/normal_5fc7ea3a57e75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501360/normal_5fb30bc6d82f5.pdfIn PDF document text
    • https://jowojebutoda.weebly.com/uploads/1/3/4/4/134487303/pobadukowebuji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374359/normal_5fed336bcc6ec.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/05ab6dcc-e27f-4534-9c47-a19b7b742950/731185261.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/95791577992.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/hansel_and_gretel_book_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51931571-fc69-418e-a18b-2bbac8877e1d/classical_music_instrumental_youtube.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/capitol_theatre_nb.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/dateluroder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26b4559f-31fd-4c61-a49a-e66f0c068f73/jugurafadujitebubefe.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_off0000d717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD717 16012 bytes
SHA-256: 4af61ab8b2dac4c443d833a25464bbdf83ee4273daf06097aff057bf140f0f6b
font_01_sfnt_off00010a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A84 4668 bytes
SHA-256: d435fab6c982188de6edc68fb93843f17efb78edb98208a29fbd034d63948f17
font_02_sfnt_off00011a54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A54 10500 bytes
SHA-256: a7a7caed3ee5f27f17ca1299c2f9c55ada876ec94e3eb7e62c179819853f1332

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