Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa7a77b9b98ff690…

MALICIOUS

PDF

75.5 KB Created: 2021-02-14 08:25:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4204b8b66bbe6d5a980aaf54b6afe604 SHA-1: 6adb8a570bbb454e68863c76c72bba155a4bde29 SHA-256: fa7a77b9b98ff690a74843b1975219765049cf11eda30c524994425c82a4e382
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/wix?keyword=balloon+defence+5+unblocked PDF link annotation
    • http://modusebipiz.iblogger.org/antiaromatic_compounds.pdfIn PDF document text
    • http://nextauto02.ru/rirukilobom64s5t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391317/normal_5fe253d58dee3.pdfIn PDF document text
    • http://ig-copyrightnotice.com/valatollronh.pdfIn PDF document text
    • http://fruitnaturs.space/keduzuwuwoxakyf56u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365594/normal_600061c159de7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365562/normal_600246bf8c007.pdfIn PDF document text
    • http://submonster.xyz/60627108126qqi7u.pdfIn PDF document text
    • https://lutomired.weebly.com/uploads/1/3/5/3/135316507/dubowalozunido.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403129/normal_6018a322a7e22.pdfIn PDF document text
    • https://xisevulatunetu.weebly.com/uploads/1/3/4/5/134595014/9da9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419818/normal_5ffa14d66df3f.pdfIn PDF document text
    • https://mexasazage.weebly.com/uploads/1/3/4/5/134513067/4334593.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370529/normal_5fd0f781eec88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366993/normal_6016696dcf174.pdfIn PDF document text
    • https://xaredeni.weebly.com/uploads/1/3/1/8/131871979/f146f420033097.pdfIn PDF document text
    • https://dojudetokin.weebly.com/uploads/1/3/4/6/134613144/gagumurinerixite.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380876/normal_6021085f3421b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464082/normal_6027e8fbe8e6d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483361/normal_5ffcfbbf8d9ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502175/normal_6013bfa26bf9b.pdfIn PDF document text
    • http://pezidibega.iblogger.org/doodle_for_google_drawing_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vimiromomekex.epizy.com/hallelujah_lyrics_music_sheet.pdfIn PDF document text
    • http://jipokogave.epizy.com/tilebifagixowuzov.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_off0000ea74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA74 5120 bytes
SHA-256: 19d7387642abc97042c7d3f17d24459825abd15c46dc060ae2b1e518d32f5343
font_01_sfnt_off0000fbff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBFF 10560 bytes
SHA-256: f29a4a63047a7fd68d7eae3850ef99d780ac8c19a27ae019b6628a3955c8c073

Open this report in the interactive analyzer, or submit your own file for analysis.