Malicious PDF — malware analysis report

Static analysis result for SHA-256 da8478b5445acd52…

MALICIOUS

PDF

95.2 KB Created: 2021-07-06 22:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f3e65589ee4013c186f2b8fbf067e00a SHA-1: 2a15a361be32f2ed7d717e2f39c8eec16b39b8d8 SHA-256: da8478b5445acd5263b6c07edd239425ea07317f909c3416e9d4fa4f75f3e0d3
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of an advance-fee scam. It functions as a link farm, directing users to various URLs hosted on potentially compromised websites, which likely serve as download locations for further malicious payloads. The document's structure and embedded links suggest an attempt to trick users into downloading and opening malicious content disguised as legitimate files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

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
  • 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.
  • 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.
  • 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://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a55313f3112---timibawekedufanufufa.pdf PDF link annotation
    • http://akinmedical.com/uploads/file/lulifagezenanoton.pdfIn PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/a35a8f4cbe3df395993c126abce1f55c/869143207.pdfIn PDF document text
    • https://roc.mn/uploads/files/28032646431.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/wulofuxef.pdfIn PDF document text
    • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/2qrslgeihbibhnsdqigoc8uc3u/lebujopesuziwogupe.pdfIn PDF document text
    • https://thuaphatlaihanoi.net/uploads/files/98016071663.pdfIn PDF document text
    • http://cesmclassof68cheyennewy.com/clients/82478/File/63804833091.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/8dde9dc4cd3bb811f096b57462d6b20b/fonazetumiju.pdfIn PDF document text
    • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/9t4m02u37l6er6tbap61vomnqd/65461007983.pdfIn PDF document text
    • https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160a37b6fd4a6b---54723562208.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/b54d30715c455366674a1ffd80548c1c/16669917561.pdfIn PDF document text
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160dbe2c552742---18853442472.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d40d6dd87b---52603994993.pdfIn PDF document text
    • https://arendic.cl/files/gijifulixavomufolagepefa.pdfIn PDF document text
    • https://villamishkan.com/310renonew/front/images/files/xiduzonuwufagoguvanu.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d449cb71a8---zofekasusorutetuwijago.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/d61b9496d890c8a7c8cc90610252e1c1/81300616890.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/81lg7ck3m20svdb1fbrg0jrt0p/dulezujuw.pdfIn PDF document text
    • http://location-venise.com/italie_documents/files/rapilibakonu.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb9193cd38---63377872364.pdfIn PDF document text
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/2e8ff62c2cc82fdc43ff2de623bde682/genorunogukegirigoru.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d86e88561---61651755955.pdfIn PDF document text
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/u7g28khvvvm19c00siv6uf1903/39902725823.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=using+textures+in+photoshopPDF 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_off000111b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111B6 10532 bytes
SHA-256: bad708d5fee128c9e59e1e4eaee36b3adc2bd34bf27b97dae2cb144f607ef5db
font_01_sfnt_off000129ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129AC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000141be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141BE 17516 bytes
SHA-256: 9ce8387bdad21831bb4c4326e25ec4c500a27bc7c66d5a912efe4c09b892265d

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