Malicious PDF — malware analysis report

Static analysis result for SHA-256 e213be41fe77b5bc…

MALICIOUS

PDF

88.1 KB Created: 2021-07-02 09:52:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 2bb4f4d991e54e8031e09ab5dc2da19c SHA-1: e95115a9e3ed1166e4930db8d45abba2a89b712c SHA-256: e213be41fe77b5bc28752f4f95df2fc72d5fb020afcd15aba06f68609b870ffe
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document exhibits characteristics of an advance-fee scam, leveraging lures related to lotteries, prizes, or parcel deliveries. While no scripts were explicitly extracted, the presence of numerous URLs pointing to compromised WordPress sites and disposable hosting suggests a mechanism for delivering a secondary payload or phishing content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1609eb0d33cc68---giduzefazokarotupiduvi.pdf In PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/qdkv1fkmrn4r9s4v7u2v9vcf16/wufafovolukenajuli.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/da1691a3079b2664020063c600c7d036/tofapisuxojubemorasiwufax.pdfIn PDF document text
    • http://aldo-ins.com/userfiles/file/47923730634.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081010e2d5c2---tukejakamoguzoror.pdfIn PDF document text
    • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b29d99a5e3---demoronofogudumarawuzon.pdfIn PDF document text
    • https://bistakalikotenetwork.com/userfiles/file/bomeninovepasijun.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3507afa48---golarikanolosibojoju.pdfIn PDF document text
    • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/a5535b9e0248cd5e5f44b7d4536aa6cd/73388722664.pdfIn PDF document text
    • https://mps-india.com/userfiles/files/nujapun.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/zozuvekawa.pdfIn PDF document text
    • https://varbackaforskola.se/ckfinder/userfiles/files/24329051280.pdfIn PDF document text
    • http://sola-brothers.com/userfiles/file/mizeluvex.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb98717834---bivasujibe.pdfIn PDF document text
    • https://airbays.com/userfiles/file/89450204646.pdfIn PDF document text
    • https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/p1i6nolcmng5ahc6jeoeqvs4k6/10203105912.pdfIn PDF document text
    • http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/877ac60005262885930c81c9951e0a36/zukewudaja.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b32db3c1e---woxafumojov.pdfIn PDF document text
    • http://starlightcelebre.org/clients/4/43/43e9139217482d7666ce300faf566241/File/44953640224.pdfIn PDF document text
    • https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/68767af7da6ae56f8a9cac9c0ae211f1/53854461430.pdfIn PDF document text
    • http://matstravel.ru/userfiles/file/35978572172.pdfIn PDF document text
    • http://www.buildingmalawi.com/images/uploaded/documents/16091457736.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607602668a587---puxaxu.pdfIn PDF document text
    • http://www.trafikyaren.com/wp-content/plugins/super-forms/uploads/php/files/nf44pvm17cmobqngf87nbg4vg7/3458866560.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=mustang+electric+suvPDF 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_off0000f6b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6B5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ECC 10444 bytes
SHA-256: 7e644db3787f98fdac214ac8347953521496ed1dfb7e4c861c1b3f9ab12aadef
font_02_sfnt_off000126a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126A2 17116 bytes
SHA-256: 5ccb31fcff4b39df78b71a2964e9c74dcec1acbda853fbf8b33809f6406395c7

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