Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2de829004d5813b…

MALICIOUS

PDF

73.4 KB Created: 2021-03-25 14:26:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bd31bc0a154ffb04a51010e68b5ba66 SHA-1: 72b3741ab06c5baecd1254ad230562a16652cc27 SHA-256: c2de829004d5813b8dc967c59467ee990ae29d93ff049d8f7ac4a98febef23a2
104 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that advertises a hack for 'lords mobile apk hack gems', indicating a lure to a malicious site. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI point towards a phishing or malware distribution attempt.

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://druttle.ru/wix?keyword=lords+mobile+apk+hack+gems
    • http://kofefolo.22web.org/wildlands_predator_guide.pdf
    • http://nuxirofa.iblogger.org/78563889628.pdf
    • http://legendnat.space/rivusaminubovehxs.pdf
    • http://1cats.space/the_forever_war_book_reviewl8m20.pdf
    • http://pimavegi.22web.org/spring_framework_documentation.pdf
    • http://classicalnaturally.com/494189072799azxf.pdf
    • http://lakuvekavepoka.iblogger.org/15444029860.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pesetufavo/adobe_photoshop_elements_2020__premiere_elements_2020_canada.pdf
    • http://poxemibusap.epizy.com/35043717766.pdf
    • https://uploads.strikinglycdn.com/files/37d33400-ac85-4a26-ac23-3cee19f86541/fm_22-102.pdf
    • https://uploads.strikinglycdn.com/files/d83883de-ae42-4f22-8d9d-04b868961b32/37155105569.pdf
    • http://mujewuliruj.epizy.com/65080852339.pdf
    • http://losaxoxajav.epizy.com/anatomy_and_physiology_chapter_18_study_guide.pdf
    • https://s3.amazonaws.com/nodetuxapabara/sojerugotuselifutejilo.pdf
    • https://uploads.strikinglycdn.com/files/7f77c53f-8069-4e86-8139-294cdd9b4416/538806237.pdf
    • https://s3.amazonaws.com/putelekireza/android_games_for_windows_10.pdf
    • https://s3.amazonaws.com/baritexovopa/o_neill_forebay_striper_fishing_report.pdf
    • http://gagelenobom.epizy.com/moldable_plastic_sheets_for_crafts.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_off0000e0de.bin
cf5ae83eb82215d3b6395e56c38798d6ef24cb65bc2f78f1a21bcc3f53e29d8b
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DE 5632 bytes
font_01_sfnt_off0000f3d4.bin
dcf3eb301cb6b0631d4219061a5d9a150433f117f4265facc04cfe32b9c47c4f
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D4 10380 bytes