Malicious PDF — malware analysis report

Static analysis result for SHA-256 69b441e99a8d55dd…

MALICIOUS

PDF

75.6 KB Created: 2021-09-18 01:48:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 084bc0925a3388490d184e5d1d69802f SHA-1: 8d49fc0c22e10c1e5036ae33641868b222625842 SHA-256: 69b441e99a8d55dd4d53a23630888b892469a83006f9f34d9aa11159e9d191c1
156 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting, likely serving as a distribution point for phishing or malware. The presence of multiple external URIs and link farm heuristics strongly suggests this is a lure document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://catamma.ru/uplcv?utm_term=queen+of+south+123movies PDF link annotation
    • https://petribax.com/userfiles/file/11361911206.pdfIn PDF document text
    • https://transturist.ba/ckeditor/ckfinder/files/files/melomometiru.pdfIn PDF document text
    • http://dgjst.com/upfile/file/20165266994.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/75c4e4d14bde890479ac59caa4130fcb/87273509102.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/72533844e3b3451ff9e7b09167054cbe/melojot.pdfIn PDF document text
    • http://seyrimerdin.com/userfiles/file/nulijilawa.pdfIn PDF document text
    • http://jrpst.pl/userfiles/file/47021263475.pdfIn PDF document text
    • https://magerp.org/upload/files/tajepufidudajuvajixa.pdfIn PDF document text
    • https://dursunguney.com/userfiles/files/wagolej.pdfIn PDF document text
    • https://irantruck.ir/data/file/nufenubexufuvu.pdfIn PDF document text
    • http://svaz-podnikani.cz/files/file/82247870112.pdfIn PDF document text
    • http://zit-tech.com/userfiles/files/8449809213.pdfIn PDF document text
    • http://studiomuraca.eu/userfiles/files/74523287716.pdfIn PDF document text
    • https://karpataljaturizmus.hu/upload/43827291791.pdfIn PDF document text
    • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/8892e633facb802d9a6b4e1680d22c7e/88895415285.pdfIn PDF document text
    • https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/bafemi.pdfIn PDF document text
    • https://stalbeckers.nl/userfiles/image/file/19260210137.pdfIn PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130a2668fd86---nomawedinakimapuwuva.pdfIn PDF document text
    • http://cantinachitarra.it/userfiles/file/3940142212.pdfIn PDF document text
    • https://fetogram.ir/images/upload/files/marakipeximijewokamozo.pdfIn PDF document text
    • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/7a8gggvjvtl172cqqlc3puguqi/maxeme.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16141187938147---bobunifakovolawu.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/3088abfa10c36df3a643c0fe82cd96b6/2206255363.pdfIn PDF document text
    • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16138cd11f2ef3---82565965310.pdfIn PDF document text
    • http://innotack.com/userfiles/files/96420481179.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_off0000c426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC426 16920 bytes
SHA-256: 6ab054f7fc1d42b1a07b99c886b8985b322a5e5f2d9b29b36103398886da628c
font_01_sfnt_off0000efda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFDA 10740 bytes
SHA-256: 42094e7860e34ea489df285b7c86fb13e89ef2749b08ce9ae0872b5e8a356126
font_02_sfnt_off000108a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108A7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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