Malicious PDF — malware analysis report

Static analysis result for SHA-256 700d8989a34a681a…

MALICIOUS

PDF

85.8 KB Created: 2021-06-29 04:32:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-17
MD5: 3abc3eeaef7cc335fa0f3ab8b0d0508b SHA-1: f8bcb71e5eb23f8b57bb74f344733aae180c07a8 SHA-256: 700d8989a34a681a700e5686b93468cca086558f2c14f152792bf9b59ef43381
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of links, many pointing to websites hosted on compromised CMS platforms. This behavior is characteristic of a link farm designed to distribute malicious content or lead users to phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://tea-ra.com/user_data/upload/save_image/files/tapuji.pdf In PDF document text
    • http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/bf0d7da17b445b1a8506f52ac27f4bfa/85582115899.pdfIn PDF document text
    • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098437425fff---nazumuduvuvoz.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d657699aa9---tubeziwotojiwuluduf.pdfIn PDF document text
    • http://a2itsolutions.com/chop/multimedia/userfiles/file/8096981783.pdfIn PDF document text
    • http://ash-graphy.com/userfiles/file/60708924753.pdfIn PDF document text
    • https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/deef6a8d2d605a6b2f10eaca4f9a1ed0/56509968929.pdfIn PDF document text
    • http://anandamsanyal.com/userfiles/file/5420564679.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b9a5a8a9905---89175650511.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2dbe242727---dinix.pdfIn PDF document text
    • https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/76760a10adfdcd67d4a927fe1d7647bd/83166422861.pdfIn PDF document text
    • https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/f49750cd8ae3b0ae158efacc3aa9aa9c/labovedusirevowufuv.pdfIn PDF document text
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609203e9cd41d---48863992388.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3e8843407---20415038251.pdfIn PDF document text
    • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cacae7da8a7---nibozunebop.pdfIn PDF document text
    • http://www.thaiboat.net/image/upload/File/gitemeribizikofuzatono.pdfIn PDF document text
    • http://ever-pioneer.com/upload/files/22749707722.pdfIn PDF document text
    • https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/19c6c6f9e859ff1cafa7358c41b478fa/41320179749.pdfIn PDF document text
    • http://blessedfamilycovenant.org/clients/c/cb/cb727bc273eb4203dc66fb73741ae5ae/File/sakefiger.pdfIn PDF document text
    • http://rltclassof1970.com/clients/8/8f/8ff9f19c840b982a6efda18ba8bb483c/File/sadaz.pdfIn PDF document text
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/95f79d0861ff01858f0b0b410e733386/85275905723.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=live+cricket+free+streaming+star+sportsPDF 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_off0000eb00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB00 10892 bytes
SHA-256: e4f81a5d14d80cbb32b43ec6aa9514d6dbd23fed3279c8e7faad592007af6b9f
font_01_sfnt_off00010444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10444 17432 bytes
SHA-256: ee24fb491839c4c421157be93296ec4f622b755a8bf5aba057d18041f84e39e6
font_02_sfnt_off00013203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13203 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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