Malicious PDF — malware analysis report

Static analysis result for SHA-256 3002e0216f8c0c3a…

MALICIOUS

PDF

84.5 KB Created: 2021-09-16 22:16:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 939d9e744cee650396bc8af18fd90267 SHA-1: bde77c490efee266cfe8a137c230df4469a4b773 SHA-256: 3002e0216f8c0c3a1b25512b800a463582ebebba89c28dca414878f8b046ea3e
174 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or trojan delivery mechanism. It contains numerous external links, many pointing to disposable hosting, and includes a heuristic indicating it instructs users to disable security software. The presence of embedded URLs and the overall structure suggest an attempt to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://nomylo.ru/uplcv?utm_term=animal+revolt+battle+simulator+download+apk PDF link annotation
    • https://faktxeber.com/resimler/files/gaguwo.pdfIn PDF document text
    • https://shivajigrihnirman.com/singhania/downloads/file/supulekikutokebozokir.pdfIn PDF document text
    • http://magnumprint.ru/upload/files/xaputogonusuri.pdfIn PDF document text
    • http://smelawservice.com/file_media/file_image/file/7444992067.pdfIn PDF document text
    • https://cylinder96.ru/admin/ckfinder/userfiles/files/zovof.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/65935391307.pdfIn PDF document text
    • http://alcantara.cz/data/file/dilezegobemajo.pdfIn PDF document text
    • http://lovesushiscv.com/uploads/files/tokazat.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/90932855275.pdfIn PDF document text
    • https://vmwarts.com/ecovic/file/17479753937.pdfIn PDF document text
    • https://smobiil.eu/userfiles/files/77543699578.pdfIn PDF document text
    • http://talleresjpg.es/img/file/topulisojuparidowifid.pdfIn PDF document text
    • http://klick-tipp.at/ckfinder/userfiles/publics/files/nujamedoloju.pdfIn PDF document text
    • https://needlugs.com/userfiles/files/fonazek.pdfIn PDF document text
    • http://grupposcorcia.it/userfiles/files/336234035.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/k5ikvh1ugbvr7quibtpd7pk3h4/21420818134.pdfIn PDF document text
    • http://csp.hu/editor_up/30323372793.pdfIn PDF document text
    • http://abwcoliseum.com/uploads/files/84106459462.pdfIn PDF document text
    • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/9f78a40bc50ffd0101d8cb9bff0cd183/sodazawereze.pdfIn PDF document text
    • http://ok-poland.com/userfiles/file/sexebapimorikawu.pdfIn PDF document text
    • https://navliecky.net/userfiles/file/45639147973.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_off0000e4d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D8 11020 bytes
SHA-256: c5cb5cb54e5d1b58b3572a5373d1ae3e39b665aabe63e17a08feb2aabf85edf0
font_01_sfnt_off0000fe45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE45 17724 bytes
SHA-256: 9e4fff0363d80eb102945714882b8e7dffc3c586cd937c1fc175fd0fcbe8d114
font_02_sfnt_off00012c17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C17 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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