Malicious PDF — malware analysis report

Static analysis result for SHA-256 367118e815ff04a7…

MALICIOUS

PDF

69.7 KB Created: 2020-11-19 06:10:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 46d8cd041e1b333f23d22a8e4201ca60 SHA-1: e99cbaf5bc324a771e6616580b8a83ef0e743953 SHA-256: 367118e815ff04a7b424afadbc31a251e7bbe66be46a94344f07644cf5da2c20
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a suspicious domain, and the document body, though heavily obfuscated, suggests a lure related to 'IQ test questions'. No scripts were extracted, but the presence of an external URI and the overall detection profile strongly suggest a phishing or malware delivery attempt.

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://traffset.ru/aws?utm_term=iq+test+questions+with+answers+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404753/normal_5fb568f611e43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469860/normal_5fa42731cf1d2.pdfIn PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/sabimugoradoviwunutu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0caf2ab-a538-4e6a-85c7-aaa2d968f5d2/the_guard_kiera_cass_weebly.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/english_dictionary_apk_download_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0bd4386-58f2-4320-9223-0abbacc137ef/law_school_transfer_personal_statement.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/jumixixiwowugitux.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/barsoom_series_complete_collection.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dc09773-3117-4b4a-ad1d-b4afeb7fdcf0/standard_galactic_alphabet_encoder.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/nakikemetunodukadase.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/the_fast_metabolism_diet_download.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/47262489572.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/operational_amplifier_circuits_analysis_and_design.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_off0000d3e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E0 5252 bytes
SHA-256: 03f95a4e6497e4383e39064e1ffcd6c04fee82ccff3f66360c46ebdb43c5ae21
font_01_sfnt_off0000e5cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5CD 10664 bytes
SHA-256: 0d97456bfb6609cfe24141167d89cd2992b3b62a85864ea912734c04d426b2e9

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