Malicious PDF — malware analysis report

Static analysis result for SHA-256 46d9ec255c9cfe39…

MALICIOUS

PDF

71.9 KB Created: 2021-09-14 01:10:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: e66fb7357a4612383e2b3ba803f3f2db SHA-1: c1dd5611aa5125a3effb8c128551df7c6342dbcd SHA-256: 46d9ec255c9cfe39947594ad4c40c4a429500a0a72dc1c71593088f4f466c30b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8295

Heuristics 5

  • 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
  • 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 https://allytemp.ru/uplcv?utm_term=radiohead+paranoid+android+video PDF link annotation
    • http://miyozenemeryville.com/uploads/files/zowironivovav.pdfIn PDF document text
    • http://inbiosa.eu/static/cfiles/files/nuzubefajigebokajonam.pdfIn PDF document text
    • http://iweldbot.com/ckfinder/pho/files/xasororafogutujepo.pdfIn PDF document text
    • http://mp-journal.com/media/file/89459231520.pdfIn PDF document text
    • http://amdind.com/userfiles/file/5246643144.pdfIn PDF document text
    • http://queensparkview.com/image/upload/File/tarorufuf.pdfIn PDF document text
    • http://brickchamber.com/ckfinder/userfiles/files/88547745118.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161329ac10b2cc---zaduzime.pdfIn PDF document text
    • http://tzsunup.com/upload/33276716309.pdfIn PDF document text
    • http://konferencii.org/web/uploads/assets/file/56973820615.pdfIn PDF document text
    • http://architettoletiziamasciotta.eu/userfiles/files/56419530449.pdfIn PDF document text
    • https://paardenwelzijnscheck.nl/app/webroot/files/ckeditor_files/files/liwetajozesoduw.pdfIn PDF document text
    • https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/i4eul47oqvdl1k97efaii508uo/37388491321.pdfIn PDF document text
    • http://w-w.cn/isee/pfm/cms/uploadfile/fck/file/jujivototumofan.pdfIn PDF document text
    • https://halkapsikoloji.net/userfiles/file/puwiseronif.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/f2a3f7d0163a9b75d7eb26a91472ad75/kijubinujazunuwotikifitu.pdfIn PDF document text
    • http://ceramkgres.ru/userfiles/file/gemozibeva.pdfIn PDF document text
    • http://burelomdo.com/ckfinder/userfiles/files/81505815334.pdfIn PDF document text
    • http://quangphong.vn/uploads/image/files/renunisomaroxokilokodofo.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/2214c96154a7897591faab1207d276ce/fuwozepewisetelomo.pdfIn PDF document text
    • http://royal-pizza.eu/files/file/zorulir.pdfIn PDF document text
    • http://movesearchesuk.com/userfiles/file/vamazagidataxotufiwovo.pdfIn PDF document text
    • http://www.atsamuihaus.com/image/upload/File/52721706998.pdfIn PDF document text
    • http://vasvaripalmuzeum.hu/upload/file/78928540541.pdfIn PDF document text
    • http://qiuyutv.com/userfiles/files/20210901122518.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF225 10288 bytes
SHA-256: 47822ec7400b271dce8d5bf924fcdc06a8567a35b0a445bbc18ca36ddb80625b

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