Malicious PDF — malware analysis report

Static analysis result for SHA-256 30d0ef8997437e14…

MALICIOUS

PDF

100.6 KB Created: 2021-07-26 14:16:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 6d4bc7d646dcaeb1b832e6f1a6570638 SHA-1: 3f3d1041efb86e5bd52ca7595ce72faea5c68f7f SHA-256: 30d0ef8997437e14c852892562d0a96fcb17f69c451d8fd4f6a70af564024242
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV also strongly indicated maliciousness. The document body is heavily obfuscated and unreadable, but the presence of numerous external links suggests an attempt to redirect users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a802d41280a---tenuranuxezizebemalij.pdf In PDF document text
    • https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/270d1580b0008004ec2193eeddf39235/walulobutinunete.pdfIn PDF document text
    • https://machnhaduong.com/images/uploads/files/46086810504.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/v2j2mvuat78jpsaoqa69goaq7t/biripofe.pdfIn PDF document text
    • http://bluebirdcanada.com/FileData/ckfinder/files/20210616_C344C9513349E30F.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/2dca387659355a7f985a404c260ec979/52262272876.pdfIn PDF document text
    • http://b-solutions.net/userfiles/file/44644303650.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608765fb08fd3---3737386685.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160bd35005a97a---22975203236.pdfIn PDF document text
    • http://pcccmiennam.com/media/ftp/file/nuloxedonazulalo.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/4tdqtl1mgp45ceov1oiuhhdpm4/zevanufikidox.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/aan52jdk3buduvg0qortrgreb5/jimujesigitidonivodul.pdfIn PDF document text
    • http://allseasonsbanquet.com/clients/868236/File/1867641505.pdfIn PDF document text
    • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/54cf726f90ac87a7c18f151502f1e85d/16796999302.pdfIn PDF document text
    • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/3ee80ba2dfa80d033732d7fd70985e3b/73940523333.pdfIn PDF document text
    • http://diclenakliyat.com/userfiles/file/satasosewufulesi.pdfIn PDF document text
    • http://driscollandgibson.com/images/edit_images/file/28978381338.pdfIn PDF document text
    • http://jogforbigt.com/clients/6/61/61f7a61d17da296148a50ccd59c4a139/File/50456510416.pdfIn PDF document text
    • https://polnische-zaune.de/userfiles/file/patogexazel.pdfIn PDF document text
    • http://bobas24.pl/Upload/file/lafevunatakusipomipim.pdfIn PDF document text
    • https://allmassage.net/upload/file/20210626091330.pdfIn PDF document text
    • http://urparitet.ru/admin/ckfinder/userfiles/files/88159701328.pdfIn PDF document text
    • http://cnokorea.com/userfiles/file/34324178548.pdfIn PDF document text
    • http://xn----otbb6ahq3d.xn--p1ai/ckfinder/userfiles/files/52824589507.pdfIn PDF document text
    • http://coffee33.ru/archive/file/sokosar.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=wow+wotlk+disc+priest+pvp+guidePDF 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_off00012619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12619 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013e2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E2B 17272 bytes
SHA-256: 11a49160b1569ef773a97dadc6c16f58ccbee81b978281f34fb5fa816865e02b
font_02_sfnt_off00016b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16B9D 10760 bytes
SHA-256: ae15de0047d7a38a4573cf81ee5ceb62ba289aefed610da104e5c9bf0fcefa0a

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