Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e2189e4cda4405e…

MALICIOUS

PDF

85.7 KB Created: 2021-09-07 21:46:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 726a94a2d438f7b7ac30608e81f1e94d SHA-1: 3f184472fb0a98f924d637aef0c91143d1279e94 SHA-256: 0e2189e4cda4405e379527881536c25fe877d8271f9c4a85a969db08179ac98f
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It utilizes SEO poisoning and link farm techniques to distribute malicious content, likely disguised as a cookbook. The presence of numerous URLs pointing to compromised CMS uploads and disposable hosting indicates a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://police8coop.com/UserFiles/file/50806977795.pdf In PDF document text
    • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e44dcd7f839---17827312068.pdfIn PDF document text
    • http://premo.at/userfiles/file/54188272138.pdfIn PDF document text
    • http://poliinc.com/upload/files/65205471285.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/d00e57590aa568162b842d0b4c267d93/5176898255.pdfIn PDF document text
    • http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e860fbed5f---79995660053.pdfIn PDF document text
    • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a904af421---2943075130.pdfIn PDF document text
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160851b61d4c2e---97226951670.pdfIn PDF document text
    • http://maility.pl/_ADRESuserfiles/file/zufavurimigugamujusix.pdfIn PDF document text
    • https://ckd-otto.com/contents//files/74958681430.pdfIn PDF document text
    • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/866166d73c4c963e01a2b2eaa2e3867b/mirezodugizufovibi.pdfIn PDF document text
    • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/befjod8aa54heiga5c3uboag6p/18113709469.pdfIn PDF document text
    • http://ahlhy.com/uploads/file/081155143834.pdfIn PDF document text
    • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/6bbc5182d5382e4aad366a67b58882c2/50886526555.pdfIn PDF document text
    • http://rkmaster.ru/uploads/files/xurawugavot.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611af09ecce0c---22991405590.pdfIn PDF document text
    • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/1609bde2db3041---972436516.pdfIn PDF document text
    • http://goldartline.ua/userfiles/file/movavegifikuvatuno.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8a43a8df7---69308467056.pdfIn PDF document text
    • http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/16088ce7fdd59b---27364152684.pdfIn PDF document text
    • http://marta-galan.com/files/varios/file/9731120560.pdfIn PDF document text
    • https://benqmusicworkshop.com/fupload/file/82360729437.pdfIn PDF document text
    • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/qlh96hp6p5q2o0bi1j1q9u2m18/veludiwirumefoluzijetovoz.pdfIn PDF document text
    • https://kisikana.hr/userfiles/file/23223842693.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=faster+way+to+fat+loss+cookbook+pdfPDF 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_off0000e73f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ff51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF51 18748 bytes
SHA-256: 4bace043a0a74b3f0f0e9d6f28702c08f19b293a80cf201ef41f9af839759ef0
font_02_sfnt_off00013012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13012 10828 bytes
SHA-256: 9e78c5127f5ef3a79a8e8d94e9f250be2641b2ad6ce7bbf8a7f4f88f32e9a4a2

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