Malicious PDF — malware analysis report

Static analysis result for SHA-256 01414cbd7d810092…

MALICIOUS

PDF

74.4 KB Created: 2021-06-29 02:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: 4062b7ceebaad31acee43177a80123cc SHA-1: 85af270f375a396d03affd4f073f45c9a7784a10 SHA-256: 01414cbd7d810092da5ba53b5af12c77cf42496dc1f90dee90c51b32f1aaa59a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs pointing to compromised CMS uploads and disposable hosting, forming a link farm likely intended to redirect users to malicious sites. The PDF structure and embedded content suggest it's part of a phishing campaign, potentially delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://huntic.ru/uplcv?utm_term=out+of+the+way+meaning PDF link annotation
    • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b551b195346---93167665438.pdfIn PDF document text
    • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cb9f613db1b---xoduwofeni.pdfIn PDF document text
    • http://agroanaliz.by/upload/editor/files/22342858171.pdfIn PDF document text
    • http://4reality.cz/userfiles/files/kogaxubalivijuw.pdfIn PDF document text
    • http://alpha-th.com/userfiles/file/wemosogegolimapewi.pdfIn PDF document text
    • https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/c44e03a4b7af2b0fdc49fde0aa2473a0/94866989371.pdfIn PDF document text
    • http://creative-format.com/upload/editor/files/481464033.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077d7cabd969---61621325399.pdfIn PDF document text
    • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbc0097d92---nabexibi.pdfIn PDF document text
    • http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/40200820354.pdfIn PDF document text
    • https://acryl-bg.com/userfiles/file/23946802829.pdfIn PDF document text
    • https://birudongker.com/contents//files/27788656574.pdfIn PDF document text
    • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160722c4fb0208---fazum.pdfIn PDF document text
    • http://bkbflooringusa.com/userfile/abbey/file/70714939703.pdfIn PDF document text
    • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/c3354294be7e1902f02e86070b5c91ae/gosajugibivonof.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c470d9b6dd5---dejirusufupur.pdfIn PDF document text
    • http://marta-galan.com/files/varios/file/dupalolexudog.pdfIn PDF document text
    • http://omonetach.pl/foto/ilustracje/file/kenibonazozesitefol.pdfIn PDF document text
    • http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b641ad363d4---totelo.pdfIn PDF document text
    • http://jonkmp.nl/img/cms/file/wenadogezeni.pdfIn PDF document text
    • http://sierrahighalumni.com/clients/878712/File/nafabemubal.pdfIn PDF document text
    • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6c47825ad---39241529552.pdfIn PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/710b9596ea8cd7a0ba0eacc44b660d8a/74758445776.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba7d79cbc9d---16862545145.pdfIn PDF document text
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a334359358c---27229778273.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_off0000c295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC295 16336 bytes
SHA-256: 25f768dc2f2c194303789a858626cdc0edde2ca38198d10d2bd409e07e006d69
font_01_sfnt_off0000ec2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC2E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10445 10672 bytes
SHA-256: 9ec2de677ea87ff544de0711cc69a1a7e3cda020b1f9aada1e76f7f831c6fa5d

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