Malicious PDF — malware analysis report

Static analysis result for SHA-256 b07fb0a82431c34c…

MALICIOUS

PDF

77.5 KB Created: 2021-03-07 05:57:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4bad282bb5ebc76276f8348398fb849d SHA-1: 9f374e8cb1ca7348c8cc905f229d8c3005eb2172 SHA-256: b07fb0a82431c34cacd23167d4b414825e2787f87c7fb04ceb939e5837462c35
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://pelibifir.ru/strik?utm_term=how+to+money+cheat+on+farming+simulator+2019 PDF link annotation
    • https://cdn.sqhk.co/mutexeze/VU4OOhr/bikini_body_fitness_plan.pdfIn PDF document text
    • http://kawafopi.mygamesonline.org/convert_mp3_to_midi_online.pdfIn PDF document text
    • https://cdn.sqhk.co/bovefonot/gegjgcg/2547493673.pdfIn PDF document text
    • http://zifepebatidiwig.22web.org/dexosu.pdfIn PDF document text
    • http://zekaxezixil.medianewsonline.com/tableau_tutorial_for_beginners_step_by_step_youtube.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/14635234893.pdfIn PDF document text
    • http://salea.site/16914301426sjlh0.pdfIn PDF document text
    • http://korixoludofuguk.scienceontheweb.net/can_i_use_canon_240_ink_instead_of_245.pdfIn PDF document text
    • http://fastpeysistem.online/57895890854kf0li.pdfIn PDF document text
    • http://xivatididoxu.22web.org/joining_report_letter_samples.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kubafezin/computer_systems_a_programmers_perspective_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/old_man_with_coffee_meme_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/868a8005-e67b-442d-bec2-cfe30a51bfa2/41946100713.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62045d85-5fa9-4aa9-a607-4880346d63d2/how_to_draw_electrical_symbols.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/76738102793.pdfIn PDF document text
    • http://semisoriguregix.epizy.com/fezopejumoda.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/antennas_direct_clearstream_4_manual.pdfIn PDF document text
    • http://junixaz.epizy.com/risk_assessment_and_contingency_plan_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5da6d181-6f5c-4aac-8d4a-c6526bc0af02/how_did_the_hitler_rise_to_power.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b757bf6-3bcd-492b-ab2f-c35fb1636e5b/feworavibuf.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE57 5932 bytes
SHA-256: 9a9e9f631fab4c59905fcf88da97bc9e0a6cda29f4c7374602bc620a14bde3c7
font_01_sfnt_off0001027c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1027C 11108 bytes
SHA-256: d6f289d044e8c5d3e15abb60f9b62dda6383d1425911efb44d09159172e5bf19

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