Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f6565d99683c508…

MALICIOUS

PDF

99.7 KB Created: 2021-09-09 03:30:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-25
MD5: 11d0aa7dad6ba41da0420bf6d20b270e SHA-1: ac2ec10059951d7b6b7476985633e3fe07fad59e SHA-256: 0f6565d99683c5088bac04eacbeb919305537fecf1322274e157b93c392e2976
126 Risk Score

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 0.9928

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://ghibms.com/userfiles/files/5105690183.pdf In PDF document text
    • http://kozszemle.hu/uploads/files/rowop.pdfIn PDF document text
    • http://ulv-fogger.ru/d/files/zobijomaliwixojinirejiri.pdfIn PDF document text
    • https://khambenhxahoi115.com/images/files/parerovemamebisaduronu.pdfIn PDF document text
    • http://pension-erlkoenig.de/img/editor/file/98912934423.pdfIn PDF document text
    • https://liantoong.com/archive/upload/files/nadokazewatoz.pdfIn PDF document text
    • https://micsys.in/userfiles/file/47997439757.pdfIn PDF document text
    • http://etkenkalip.com/files/67906682884.pdfIn PDF document text
    • http://tt-ural.su/admin/ckfinder/userfiles/files/22234690241.pdfIn PDF document text
    • https://dycmc.com/DATA/upload/files/202109020523159038.pdfIn PDF document text
    • https://braintreeclinics.com/app/webroot/img/files/gukixolugakufidivole.pdfIn PDF document text
    • http://colantuono.it/userfiles/files/titof.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/96220352760.pdfIn PDF document text
    • https://sharedsynergy.com/userfiles/file/40324768439.pdfIn PDF document text
    • http://nfc-lampang.com/user_img/files/fadurakabev.pdfIn PDF document text
    • https://klcmekatronik.com/ckfinder/userfiles/files/44404208871.pdfIn PDF document text
    • http://ecme.site/2015/vat/upload/files/87502132319.pdfIn PDF document text
    • http://szerecsengyogyszertar.hu/editor_up/guxuninamufopuxom.pdfIn PDF document text
    • http://gps-ambroisie.com/ressource/site-image/files/vukevagadokosaniv.pdfIn PDF document text
    • https://encoyun.com/calisma2/files/uploads/25521696790.pdfIn PDF document text
    • http://branonperformance.com/ckfinder/userfiles/files/67514322621.pdfIn PDF document text
    • http://allamericannursing.com/userfiles/file/97015261369.pdfIn PDF document text
    • https://honghow.com/ckfinder/userfiles/files/nasare.pdfIn PDF document text
    • https://5udua.com/contents/files/39623009765.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=pee+nak+2+full+movie+online+eng+subPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011697.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11697 10880 bytes
SHA-256: f4a0741c881f8e83073d472c9e4b7d34d92e56e7f3954c5a53401ff26ebbca4f
font_01_sfnt_off00012fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FCF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000147e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147E1 21940 bytes
SHA-256: af0b78675bc7b4677009895cd1f4b466ea52ed371f3c3369bad39d8194ba73cd

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