Malicious PDF — malware analysis report

Static analysis result for SHA-256 253350902209de68…

MALICIOUS

PDF

81.1 KB Created: 2021-03-22 09:52:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 282029d048788ff7510e77a83a11b236 SHA-1: d7e31f976b5e1cfb0533affd685373ab39bbe9dd SHA-256: 253350902209de68cb6b14acd0b92f30ccf6c58a0413481dcbd8b59ad38ef107
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body's obfuscated nature and the presence of multiple unknown URLs suggest an attempt to disguise the malicious intent and deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://golowaki.ru/123?utm_term=auto+tune+8+native
    • http://liolika-rsya.ru/12714025590b9keu.pdf
    • http://natur-green.fun/cheat_codes_for_gta_5bothk.pdf
    • http://fishing-rods2.club/welategudumufudapukiba9gxfz.pdf
    • http://prizinsta365.site/whatsapp_status_love_video_pagalworlde0gm5.pdf
    • https://cdn-cms.f-static.net/uploads/4485578/normal_60192f6ab4892.pdf
    • http://hookup668.site/temozusonqabvj.pdf
    • https://static.s123-cdn-static.com/uploads/4380691/normal_5ff57c6c23c59.pdf
    • http://fasoxuxesatilu.sportsontheweb.net/access_control_policy.pdf
    • http://leporabev.mywebcommunity.org/vampire_predator_bible.pdf
    • http://wemorewabadeluz.mygamesonline.org/84804896918.pdf
    • http://wijasagasipode.getenjoyment.net/tenodimuwavagowiguzu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://52a1af19-6946-4c37-aba6-ab00a30e4874.filesusr.com/ugd/5dc3ca_f296aa8438504860a5cc507a74305376.pdf?index=true
    • http://xefujifivifizu.epizy.com/she_let_go_guided_meditation.pdf
    • http://nofifejagarenut.epizy.com/kalilezuduxu.pdf
    • http://boraxijud.epizy.com/odia_new_song_bestwap.pdf
    • https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_c7eccbd385d34f30b4e9429d2893c95d.pdf?index=true
    • http://fusizizugunu.epizy.com/31069340999.pdf
    • https://944bcc21-9f45-42c2-9889-8cf837fa5d1c.filesusr.com/ugd/50f869_085df5c90dca4198bcca6712c7bcc589.pdf?index=true
    • http://menaronutex.epizy.com/nobuzojasatixiwewajo.pdf
    • https://694dae7a-2033-4a59-8b06-91ff4eec0774.filesusr.com/ugd/e1d58f_ebcf00e977874b6aad5acefe440dc601.pdf?index=true
    • https://80172413-d145-4b71-b7cf-4a007d76ad29.filesusr.com/ugd/cacfd7_717c2b204c2549ecb2e68709b0e2e7de.pdf?index=true
    • 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
    • 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_off0000ec48.bin
19d98b9351b68e9e247e9a4625ef190b2d7501317502c45f117fc598795df74c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC48 4616 bytes
font_01_sfnt_off0000fc18.bin
b31a81b984a176347cecfed312c51198b613b05711330f3045e3e60ddbac17f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC18 11188 bytes
font_02_sfnt_off00012297.bin
2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12297 16060 bytes

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