Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e59694013a148b…

MALICIOUS

PDF

74.7 KB Created: 2021-09-06 07:09:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 0f1eb880af44680a0e2b1e415b7b0ed8 SHA-1: fb69c0634cebc26fd25e737d15e2872aea34128a SHA-256: e0e59694013a148bc3e772e0161d981e2f5d4db016d39ff87e12413c19fd71f0
184 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and multiple external URIs. The presence of embedded JavaScript suggests an attempt to execute malicious code, likely to download additional payloads or redirect the user. The URLs point to potentially compromised WordPress sites and an IP address, indicating a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ccf27ebfacb---rujeto.pdf In PDF document text
    • https://ytdrive.com/CKEdit/upload/files/12624814321.pdfIn PDF document text
    • http://kamnitikamini.si/upload/files/dikinovivanane.pdfIn PDF document text
    • http://zwickerfoto.hu/_user/file/12951505192.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160c979221137e---gazewenowovuwu.pdfPDF link annotation
    • http://zehanbiopharma.com/upload/files/9573396229.pdfIn PDF document text
    • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160a97f6a1771d---moruzufasaluri.pdfIn PDF document text
    • https://bankkartya.hu/js/ckfinder/userfiles/files/78405990815.pdfIn PDF document text
    • http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa0cdcce69---61041013834.pdfIn PDF document text
    • https://attack.lt/images/files/gelalikos.pdfIn PDF document text
    • https://toyotaautobody.com/ckfinder/userfiles/files/likuje.pdfIn PDF document text
    • http://thanuyentea.com/ckfinder/userfiles/files/weposetutizavomi.pdfIn PDF document text
    • http://hutbephottaihaiphong24h.com/upload/files/movidilina.pdfIn PDF document text
    • http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/16126e73c8fead---setiwaxuzigir.pdfIn PDF document text
    • https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/tumit.pdfIn PDF document text
    • http://textingrights.com/userfiles/files/71131464722.pdfIn PDF document text
    • https://feldmann-spedition.de/pics/userfiles/file/70438305596.pdfIn PDF document text
    • https://veterinarycarefoundation.org/userfiles/file/panamifiwiguworofidogaxa.pdfIn PDF document text
    • https://service-panev.com/userfiles/97915994977.pdfIn PDF document text
    • https://butyfarm.mm520.net/userfiles/files/45933848535.pdfIn PDF document text
    • http://colafranceschi.it/userfiles/files/vepivexebutuxekugifodi.pdfIn PDF document text
    • http://cuacuontoanthang.com/media/file/laviriderapi.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b11e3c36f42---70132979035.pdfIn PDF document text
    • https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/3d4v5d9q8aeebfh0o9m2dfgp1m/48286589872.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=nielit+ccc+study+material+pdf+downloadPDF 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_off0000bb0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB0B 18356 bytes
SHA-256: 0871e5a4db039f35944e017aa5683858f1de315013c6be4d614d5d1b26cb9c96
font_01_sfnt_off0000eb4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10361 11060 bytes
SHA-256: db8b8970d91496cdf6650d239bef856f2f6e8e82cf0b07a4c67e3eb43ba53b5f

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