Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ca902949f21165…

MALICIOUS

PDF

88.5 KB Created: 2021-03-16 05:18:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74088e55a630ba8444000d684d2d256d SHA-1: cf31e2f5ed9af1c9296617b27ab5bc83e4076a76 SHA-256: 02ca902949f211650b485e57cbfe315065802a1dc3ad7108d2812b50c0c239e9
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading cracked software. The presence of a 'download button' heuristic further supports the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://nipisod.ru/123?utm_term=autodesk+2014+crack+file
    • http://kakerusejom.iblogger.org/the_biology_of_belief_book.pdf
    • http://minozodatatinad.22web.org/husqvarna_hu775h_spark_plug_gap.pdf
    • http://geteniruxoxure.22web.org/ampicilina_sulbactam_en_el_embarazo.pdf
    • http://fortuneo.best/assistir_filme_highlander_dubladoywmk6.pdf
    • http://opencabinets.xyz/world_history_books_for_high_school_students4fjzy.pdf
    • http://derewopenila.22web.org/15697065247.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zobawukesilebaf.epizy.com/noguxubojelomababafi.pdf
    • https://uploads.strikinglycdn.com/files/cdd4bf10-1262-43ff-9e16-96228193a45c/48118171368.pdf
    • https://uploads.strikinglycdn.com/files/f37e8758-ffe2-4576-a164-f9be1e684c88/bikotolabanekedimix.pdf
    • http://wawapudatubu.epizy.com/winter_wonderland_sheet_music_key_of_c.pdf
    • http://bezopebadutaz.rf.gd/voxujano.pdf
    • https://s3.amazonaws.com/negonanopix/lapuser.pdf
    • https://uploads.strikinglycdn.com/files/851c55d2-746a-4ac4-b933-1f2a4ab863a3/how_to_build_your_own_trampoline_park.pdf
    • http://zusirana.rf.gd/babivudup.pdf
    • https://uploads.strikinglycdn.com/files/0cea39c5-b291-42b0-af08-b8b880a41ed5/leroli.pdf
    • http://xekubot.epizy.com/how_much_is_the_minimum_child_support_in_michigan.pdf
    • https://s3.amazonaws.com/gagagakigibapo/mystery_dungeon_sky_starter_guide.pdf
    • 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_off00011b21.bin
00e8a0b623e090906a50c30b7cfb7969257a8f6cc38d9aa9ebc436727476b10b
pdf-font-stream PDF embedded font (sfnt) at offset 0x11B21 5484 bytes
font_01_sfnt_off00012de6.bin
22d6ba0130c1b4dde419ed042941e722e668ec33f6e4b72659e262b044de822f
pdf-font-stream PDF embedded font (sfnt) at offset 0x12DE6 11440 bytes