Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1b02d5d8c2ef26…

MALICIOUS

PDF

74.8 KB Created: 2021-04-28 08:34:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d4ec3088d771061f72463931a8af1cc9 SHA-1: 5b8923f3400c3e75c2eae00eeb1bae1341bb9a66 SHA-256: 2b1b02d5d8c2ef26a192bb4eae39105dfc2ca806936fee4aba8df0fede861dca
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI that points to a URL, suggesting a phishing or scam lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used for initial access via social engineering tactics. The document body, though heavily obfuscated, appears to reference a guide, reinforcing the lure aspect.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/h835oh34jijtsijv6qlg8h2dqs/67879087969.pdf
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca907136be---puxewiwebulofev.pdf
    • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/h8nmc6h3uvui0fesbkhvtsrgbi/61045090680.pdf
    • https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/42gik3s4hda9ephit91vvr7mh3/xujufurobadivowotad.pdf
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4d74eb1e8---53241803976.pdf
    • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/d3a4668a05fc2ee52eb89ef6ed0a02b4/41178711181.pdf
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/aec105b8d50cdfd7be041958f4ddc6eb/jaribur.pdf
    • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/4c49899db97fe1e5a9dc262db5d40c64/denowuto.pdf
    • https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/3f82c8ca6b3ea1223bd94f10dcaa3f1d/32660011849.pdf
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/d92j2pj7f6kakmvsa64tqvu6us/pomeko.pdf
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160710163a6148---vadabanak.pdf
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082c325209aa---rekuvofunonujinorapeloram.pdf
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086ff6dd2ff8---57475343719.pdf
    • https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f39181b9e3---40413526775.pdf
    • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/203d2c09b8da2302a96e5e3ad5eb5eb4/zaxuf.pdf
    • https://www.propertyadvisersaustralia.com/wp-content/plugins/super-forms/uploads/php/files/ab57c3419bb723b04e17721b08d03dfd/didujedegiw.pdf
    • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/3af7ac08f2e4e513c056047097205c55/49197213087.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=anarchy+online+metaphysicist+guide+2019
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e555.bin
495457897f7cf2067a266e8c296028537dd10260b1e53bb89b4471fc756fefc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE555 6060 bytes
font_01_sfnt_off0000f9d8.bin
bc7ad0c35f9128606ffbd62d4099017bf90be52381b8c9b44bce5c4581299b4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D8 10716 bytes

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