Malicious PDF — malware analysis report

Static analysis result for SHA-256 4642c49f2b3d3920…

MALICIOUS

PDF

95.0 KB Created: 2021-06-27 15:41:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 08c1fe607766fad7838ab51043bc8813 SHA-1: 8f1b79e48456b5792466395e06f633d3f07799e0 SHA-256: 4642c49f2b3d39206f2c147dc15cc5ec80937da91c64e8d7b4f7bb73fb41661f
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, and heuristics indicate it is a callback phishing lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to trick the user into interacting with malicious content or services. The presence of multiple unknown URLs indicates potential payload hosting or redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://southtours.com/wp-content/plugins/super-forms/uploads/php/files/3lgnhb3hm5jtngug2p307f11kf/vepuzudadomotunix.pdf
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609726b506bb7---69829047574.pdf
    • https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/84c250123e41fb9d49e1acbf85060680/bupuz.pdf
    • https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606ea0f7d51e3---gepelarad.pdf
    • http://heureka-cz.eu/files/xawovobeni.pdf
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/cf11d0513aeb713a7bcd833d72fc9bea/vubigejipul.pdf
    • http://brainbond.ro/userfiles/file/94081721901.pdf
    • http://thebellingerfamily.com/clients/0/05/05034faaa501c69409a7459485cba135/File/37081687244.pdf
    • http://aiswaryamatrimonials.com/fck_uploads/file/62259056085.pdf
    • http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609e1108a4647---52795320332.pdf
    • https://deepex.hu/hirek/files/54219664426.pdf
    • https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/fedaa13d178804d37c12ee11bcf90039/laderowo.pdf
    • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/60fded784ae5671a0efd833ea664a9f5/dagulasur.pdf
    • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/5dd5850d7800fc2f46b7e2ea7247a92b/jotixosupolitugu.pdf
    • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160ae7b378d4e8---mavepanebo.pdf
    • http://cdseoulps.com/uploadfile/fckeditor/file/kunalesodekulefolitulivel.pdf
    • http://softwarefactory.nl/images/file/56123626982.pdf
    • http://gruppocinofilomarsalese.com/userfiles/files/zanakinabifexefumufa.pdf
    • https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608cdc8ac0469---39613067283.pdf
    • http://podlahypilat.cz/admin/file/fakujilikozima.pdf
    • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/2a8e12b0065595cf8a2a07e3fa9272fc/wufej.pdf
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/69852f1bcdfa4c0eb0cfa830a6637356/somilenareziwezodi.pdf
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c027e57b0cc---nepekapi.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=acls+questions+and+answers+pdf+free+download
    • 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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010eb6.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EB6 16792 bytes
font_01_sfnt_off000126cd.bin
d1e156edf117df4dc3049f6cae125933bd8bb4eefeb87caf72d680a3ad900f04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126CD 10924 bytes
font_02_sfnt_off00014022.bin
218530d4575cf2632857973aee180671630dfee2085e4496606327a2dec8cde3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14022 17600 bytes

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