Malicious PDF — malware analysis report

Static analysis result for SHA-256 7afc700ef0b4d2a4…

MALICIOUS

PDF

82.1 KB Created: 2021-09-09 09:23:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 02531f39ec79decca6f2c612eb8e78c8 SHA-1: 78731e5eb72e4f606dd67c67b70abbc72f75dd12 SHA-256: 7afc700ef0b4d2a443c5441975fbd47f864ba5488ab7ba7e8ded2c1c7d307980
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to disposable hosting or are part of a link farm, indicating a malicious intent to redirect users. The ClamAV detection and ML classifier strongly suggest malicious content. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing or malware distribution lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 http://2ds-creations.fr/userfiles/file/57823045520.pdf In PDF document text
    • http://abovomedia.hu/_user/file/81402414971.pdfIn PDF document text
    • https://cubic.is/userfiles/file/najirizekuvoxofitedesosow.pdfIn PDF document text
    • https://agriplan-rs.com/dados/ckfinder/files/89601211831.pdfIn PDF document text
    • https://sabagdasarov.ru/upload/file/wuvijaz.pdfIn PDF document text
    • https://cjsc.se/ckfinder/userfiles/files/44199577119.pdfIn PDF document text
    • https://peoplesmodelinternational.com/ckfinder/userfiles/files/laxupabasep.pdfIn PDF document text
    • https://limberhurstgallery.com/imageuploads/file/nojuwelagajagetifom.pdfIn PDF document text
    • https://bouveau-consulting.com/userfiles/file/96113278613.pdfIn PDF document text
    • https://hoalavender.net/upload/files/junolaxipasafomabar.pdfIn PDF document text
    • https://pgprojekt.pl/Upload/file/zakoxomiligum.pdfIn PDF document text
    • http://weddingdove.tw/uploads/files/202109091354278408.pdfIn PDF document text
    • http://vietdubai.com/userfiles/file/43358028596.pdfIn PDF document text
    • http://melabo.com/upload/files/gokelukesobogura.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16135d74c4ac2a---23567639316.pdfIn PDF document text
    • http://molenat-energies.fr/molenat.com/images/editor/file/lumotupojolejogomusiforul.pdfIn PDF document text
    • http://chi-kara.net/Upload/files/79817763099.pdfIn PDF document text
    • http://esistore.de/userfiles/file/visidamowapenujurobesolix.pdfIn PDF document text
    • https://coevent.ru/upload/files/woginiwumosimomimagog.pdfIn PDF document text
    • http://longarmquiltingacadamy.com/fckeditor/userfiles/file/63026295508.pdfIn PDF document text
    • https://tebra.si/userfiles/file/89141778274.pdfIn PDF document text
    • http://indecomavo.pl/userimg/inc/83993927169.pdfIn PDF document text
    • http://hrzservices.com/uploadfiles/file/31360834757.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=kumkum+bhagya+22+february+2021+full+episodePDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B1 11472 bytes
SHA-256: 6625abd3a45aa661a462d5144554ade22e5780687bd3712a6a29bc60a20b10a5
font_01_sfnt_off0000f16f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF16F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10981 18612 bytes
SHA-256: f874983cee6cf4c124197b4f2b023eddd58085de799b8dd305fd5a56fe2024d2

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