Malicious PDF — malware analysis report

Static analysis result for SHA-256 d36c3a148c809ad0…

MALICIOUS

PDF

80.6 KB Created: 2021-01-21 17:41:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: ec033600978b9711b28f50f164885270 SHA-1: ba3e5a8e54221e182e59a02b2a27e4f919f35e16 SHA-256: d36c3a148c809ad05a879ecaa68ba45d82833832db73d33df9f9a4de7ff7fcfa
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL pointing to a suspicious domain, likely intended to host or redirect to malicious content. The document body, though heavily obfuscated, suggests a lure related to 'Karma sutra diagrams pdf in hindi', aiming to trick users into downloading the malicious file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/123?utm_term=karma+sutra+diagrams+pdf+in+hindi PDF link annotation
    • https://cdn.sqhk.co/ninivaxibab/h2jiVje/pulabuxakof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446944/normal_5f9f3caac336e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465015/normal_5fca07b8b316e.pdfIn PDF document text
    • https://site-1176492.mozfiles.com/files/1176492/chrome_setup_file_free.pdfIn PDF document text
    • https://site-1244917.mozfiles.com/files/1244917/cengage_integral_calculus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368752/normal_5fd7b294bdab2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459624/normal_5ffd8633b401d.pdfIn PDF document text
    • https://site-1251700.mozfiles.com/files/1251700/jupejopolu.pdfIn PDF document text
    • https://cdn.sqhk.co/tufuboloruj/hQFhjgc/petroleum_engineering_program_florida.pdfIn PDF document text
    • https://cdn.sqhk.co/lodikorep/Rgf1OUd/bubble_fish_lamp_dunelm.pdfIn PDF document text
    • https://site-1172175.mozfiles.com/files/1172175/vewigoponotaxejejujojogem.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/jenisozazewubo/agriculture_algerie.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/camera_360_terbaik_untuk_android.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/nazar_battu_hd_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/rewezubawabuxilerono.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/luwekikawiro.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/rte_admission_form.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/42248349623.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/42548788523.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_off0000fcd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD6 5392 bytes
SHA-256: ead69396cf559a7e559b710078d79dc9e3c7d01b1be63d3ac3cf5b6ba1367d8f
font_01_sfnt_off00010f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F0B 11564 bytes
SHA-256: a56217e798ad680f02713e57818360ea97c6326663c61b271c7304058850eef6

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