Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfff06b2b4c889ed…

MALICIOUS

PDF

100.7 KB Created: 2021-03-19 18:15:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 674aa81bc5622e7bf05fe623b9aee3ab SHA-1: 9014831d6762b5cbcb259e549e8978b194aa4e12 SHA-256: bfff06b2b4c889ed2fd1aeafdece10d8091d134c7d544985bf020fb4df0bb792
104 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with heuristics indicating the presence of external URIs and urgency lures. The document body, though partially corrupted, suggests a 'red light camera fine' theme, a common phishing pretext. The embedded URL `https://soxebez.ru/wix?keyword=sample+letter+red+light+camera+fine` is the primary indicator of a malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/wix?keyword=sample+letter+red+light+camera+fine
    • http://lerimofo.mywebcommunity.org/tabisanunoladunod.pdf
    • http://baxusajatos.sportsontheweb.net/cocubes_aptitude_questions.pdf
    • http://nokasosozigof.mypressonline.com/musical_scripts.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://6d5fec37-5936-4ae8-8938-03a86e982f09.filesusr.com/ugd/d4da64_be584d3c2cf34c65b85f49205253dcbd.pdf?index=true
    • https://f516a5e5-1936-4b34-b436-a929b3a34b8d.filesusr.com/ugd/774001_272bb0ef918d41b3ae77ad4b4ce8b93e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6d175248-1d4c-40a1-ad12-938f7b826b30/serway_principles_of_physics_5th_edition_solution.pdf
    • https://6c71f620-b6e5-46cc-9e58-526c5f0a7a41.filesusr.com/ugd/1c90dc_f0ee08632ba4426192326a9e4a6d84f2.pdf?index=true
    • https://s3.amazonaws.com/belapawerezuju/vishnu_sahasranamam_telugu_download.pdf
    • https://c8d0f166-86fd-441b-8df5-aa5e6c6c7644.filesusr.com/ugd/f4b3af_2637f1889d4b418282e6ceaac97bf13d.pdf?index=true
    • http://jaminuzifibe.onlinewebshop.net/bupefowimosadibe.pdf
    • https://uploads.strikinglycdn.com/files/1f98c8e6-ceab-4ca9-ada4-642559470168/how_to_clean_safety_first_cool_mist_humidifier.pdf
    • https://uploads.strikinglycdn.com/files/d2f64231-b00d-4687-9777-c438bf0f26cc/2018_lexus_rx_350_for_sale_near_me.pdf
    • https://uploads.strikinglycdn.com/files/74c3fe45-f7e0-44b5-94b7-8faef43be710/wall_street_journal_review.pdf
    • https://uploads.strikinglycdn.com/files/2193356d-ea64-4f2b-bb7e-f1231de1ff59/does_top_secret_clearance_look_at_medical_records.pdf
    • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_b2ef87d22ad44f2e837a64165fc0fab3.pdf?index=true
    • https://a513df27-8ea1-49e5-9b48-af726a3c99b5.filesusr.com/ugd/c567c1_c34d2517aa0f4d99b255ba37f89420c1.pdf?index=true
    • https://1a447ccf-a6a5-490c-ad31-399ae8169532.filesusr.com/ugd/cf5184_16e002d6c68b4b77a9a598ff879c1bd7.pdf?index=true
    • https://fad58b31-c538-4d3f-828d-7998eec853b9.filesusr.com/ugd/7e6083_48f85d324e2a4ece87176ae58a3eee25.pdf?index=true
    • https://s3.amazonaws.com/jotogorurekuro/1250630821.pdf
    • https://uploads.strikinglycdn.com/files/92e04fa9-cc7e-43f1-ae78-323ead8159db/intex_sand_filter_manual_sf80110-2.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001431d.bin
b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1431D 2828 bytes
font_01_sfnt_off00014d18.bin
e7e6e3c1ab7791e18ad0aba7f5001e35e3e75fd040e5f70fea8d5603d89e48cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14D18 5496 bytes
font_02_sfnt_off00015f9c.bin
17834f06156ebc8a8c2373141e8043140177df9e34eec5ffcce4aaf14ee20601		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15F9C 10608 bytes

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