Malicious PDF — malware analysis report

Static analysis result for SHA-256 801f8bdbef1185b9…

MALICIOUS

PDF

83.9 KB Created: 2021-09-14 01:46:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 97faac13f130c4bb51580d454b4a6865 SHA-1: 03836441a0d74709ffae4927ac75fe4330e74528 SHA-256: 801f8bdbef1185b9f01892d86b5693b6fc02b7cab3fce6eb2eee78b777007f3a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by ML classifiers and ClamAV as malicious. It contains numerous external links, many pointing to compromised websites or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the overall structure indicate it's likely a lure to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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 https://drafthe.ru/uplcv?utm_term=android+kernel+update+tool PDF link annotation
    • http://yarpb.ru/pic/userfile/xupoledotewagosuge.pdfIn PDF document text
    • http://quincy.pl/ckfinder/userfiles/files/saxixujadapexuketaxova.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613890f7521b7---xisadikijerumufulibasuwe.pdfIn PDF document text
    • http://kbautotech.com/board/datafiles/imagefile/63716129576.pdfIn PDF document text
    • http://galantemontagnana.it/ckfinder/userfiles/files/kabedebixarete.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1753da1e5---64091036018.pdfIn PDF document text
    • http://pizzeria-millemiglia.de/app/webroot/img/editor/file/volusudinupuvetupir.pdfIn PDF document text
    • http://www.oiseaubleu-promo.fr/userfiles/file/46859690009.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/70771589719.pdfIn PDF document text
    • https://stallion-international.com/userfiles/file/xasalunu.pdfIn PDF document text
    • http://jiji.pgo.tw/pic/uploads/files/vonata.pdfIn PDF document text
    • https://thisissati.com/userfiles/files/moretobagudemarezavexebop.pdfIn PDF document text
    • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd2fd22567---14685977062.pdfIn PDF document text
    • https://beta.nhatthiengroup.com/files/uploaded/files/51301634560.pdfIn PDF document text
    • http://showpalmedical.com/userfiles/ginukaguxovujikulifepe.pdfIn PDF document text
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/ed094faadaeb34b3eeb4fde59f0f1348/13650452309.pdfIn PDF document text
    • http://avandcie-automation.fr/ckfinder/userfiles/files/14778685454.pdfIn PDF document text
    • http://mexvp.com/ckfinder/userfiles/files/24580874192.pdfIn PDF document text
    • http://mecaniquekd.ca/upload/file/dalogagivisotikidasig.pdfIn PDF document text
    • http://innotec-industrie.be/userfiles/file/32972027345.pdfIn PDF document text
    • https://kasihpaham.com/contents/files/ladabebuvukawotelisasina.pdfIn PDF document text
    • http://kadh.kr/bobod/upload/file/logotiropu.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c648e83fa---zodududepafogolijeduf.pdfIn PDF document text
    • http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb56315885---43705460063.pdfIn PDF document text
    • 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_off0000e08f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08F 19508 bytes
SHA-256: dfd3c34447be492cb5ec7d6475f541de145cf6c95b34b6d4ffc1d416a602fc20
font_01_sfnt_off0001132f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1132F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012b46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B46 10388 bytes
SHA-256: 78c271b19f937491dd5a4f447777f8137bc751db176aa616bbf9050e39e32dbf

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