Malicious PDF — malware analysis report

Static analysis result for SHA-256 1238342210e48e04…

MALICIOUS

PDF

84.6 KB Created: 2021-03-19 21:44:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 33f87ee7ef8d9aaf24bca792b35c27bd SHA-1: 7eaee08e37b0a6f8413f1cf4c9266803a5f17cca SHA-256: 1238342210e48e045f8c907df0ab0041ba942a6ee4bc65ea4ab411ed4c7c2cd8
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, specifically as a phishing trojan. It contains numerous embedded URLs, with 'https://zajinet.ru/wix?keyword=iml+compensation+plan+2020' being the most prominent, suggesting a lure to a malicious website. The document body, though heavily obfuscated, contains text related to 'Iml compensation plan 2020', reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://zajinet.ru/wix?keyword=iml+compensation+plan+2020
    • https://cdn.sqhk.co/bikegola/jXK28EG/92718747047.pdf
    • https://cdn.sqhk.co/ponajadu/iXhe0aL/mubanelesidu.pdf
    • https://cdn.sqhk.co/sejujona/FhfpstP/67813740564.pdf
    • http://fulitip.iblogger.org/9903805739.pdf
    • http://pilevisuzo.iblogger.org/wordpress_redirects_to_homepage.pdf
    • http://nekuwagibajese.getenjoyment.net/43538127695.pdf
    • http://tubovubunuf.iblogger.org/shadowrun_returns_decker_guide.pdf
    • http://ririzobe.medianewsonline.com/79574404981.pdf
    • http://sujolisake.medianewsonline.com/cognitive_behavior_therapy_judith_beck.pdf
    • http://miromawetibikew.mywebcommunity.org/carnival_of_venice_paganini.pdf
    • http://dosaxixapaxa.medianewsonline.com/carbylamine_reaction_mechanism.pdf
    • https://cdn.sqhk.co/winogolelog/fogiS1b/leadership_management_skills_training.pdf
    • https://cdn.sqhk.co/vakolitakap/7hjfgjc/zizadizarimifizisim.pdf
    • http://gexopidikimo.mygamesonline.org/muvirewurasisifoxuxilore.pdf
    • http://lidekuzadapuvi.22web.org/letter_of_introduction_for_job_template.pdf
    • https://cdn.sqhk.co/sevafeluba/jaWZgcR/bubble_gum_simulator_rainbow_dogcat.pdf
    • http://vemasujananexu.22web.org/conjunctions_worksheets_for_grade_5.pdf
    • http://lamaded.mywebcommunity.org/91460810065.pdf
    • http://juzufezike.mygamesonline.org/abide_with_me_matt_maher_chords.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rigevigikeso.rf.gd/what_are_some_entry_level_supply_chain_jobs.pdf
    • http://pemuwosefewe.epizy.com/water_pollution_articles.pdf
    • http://walefusariwe.epizy.com/how_do_you_change_the_4_blades_on_a_honda_lawn_mower.pdf
    • http://naximeb.rf.gd/ragazirekanefemibelezuta.pdf
    • http://zitadufafasid.onlinewebshop.net/world_map_with_oceans_and_continents_labeled.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_off00010a8e.bin
974f671f833b289e79326f1a9aa33fdced6b5c91912dfb91860a0e803a3c03d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8E 5196 bytes
font_01_sfnt_off00011c29.bin
ea833ccdf744b11cf5a34b1664f0755e9bd21a62555f871e66b4174b61aa5ff0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C29 11600 bytes

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