Malicious PDF — malware analysis report

Static analysis result for SHA-256 076dc8144581ca45…

MALICIOUS

PDF

93.7 KB Created: 2021-09-14 11:05:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 97b95ad871a18157384ac336abf97fac SHA-1: 0108aaf8cfadb0f1fcad430a37d79149046b5c02 SHA-256: 076dc8144581ca45025b2823f2d5b625167c29b9fe8b1bb40ce139bc9a606896
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with malicious document delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

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 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://encino.ilovepokebar.com/uploads/files/bokokinijibitegemejuma.pdf
    • http://szermgrt.hu/uploads/ckfinder/userfiles/files/jedewisumuwuvukonogejar.pdf
    • https://teamcode.net/upload/files/36207628207.pdf
    • https://eatorhours.org/e-bussiness/fckimages/file/wowulogolevalogozituvab.pdf
    • https://bhiringisamsankalimandir.org/userfiles/file/30597404322.pdf
    • https://toscanafantastica.com/userfiles/file/dibovizefimaluvobixado.pdf
    • http://www.deewanalarab.com/up_imgs/vixaladawudiduvetiziza.pdf
    • https://eklyps.net/images/file/75345118077.pdf
    • http://marketypik.pl/zdjecia/fck/file/73431920749.pdf
    • https://siam-royal-view.ru/data/files/nejidodiz.pdf
    • http://bainihu.com/upfiles/editor/files/16132391948.pdf
    • https://soenen-pneus.com/upload/file/banekusorot.pdf
    • https://2winit.com/Files/files/meposefuteje.pdf
    • https://hotnews.md/upload/userfiles/files/divemevokul.pdf
    • http://kbautotech.com/board/datafiles/imagefile/jutofinelotepowabaso.pdf
    • https://tavio.ru/files/file/sezofakibugul.pdf
    • http://wellogo.in/userfiles/file///30642619339.pdf
    • http://feminella.ro/upload/fck/93819198891.pdf
    • https://fertilizergranulatorprice.com/d/files/51898901806.pdf
    • http://infracsap.hu/files/file/damun.pdf
    • https://satellietgroep.nl/userfiles/files/gavitonokaf.pdf
    • http://incomingmakedonia.com/files/files/31478363772.pdf
    • http://vector-mebel.ru/uploads/files/28375040160.pdf
    • https://casadko.fr/userfiles/file/74352953141.pdf
    • http://technestudio.eu/userfiles/files/41123543845.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=smiling+face+with+tear+emoji+keyboard
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e49f.bin
de15f69120d641661fda390f3e9ae040a4d2da49fc9c09246b028202447d6a39		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE49F 21736 bytes
font_01_sfnt_off00011e0b.bin
5cd8a120e106fc2d4fc1855603a636a3ce922decfb1b4d98f17a4a5450337c58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E0B 16344 bytes
font_02_sfnt_off00013404.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13404 16792 bytes
font_03_sfnt_off00014c1b.bin
c6079b54f7a13d8f66378618113d7e098d40c75a88e6bae46af95da2aaae9c5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14C1B 11392 bytes

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