Malicious PDF — malware analysis report

Static analysis result for SHA-256 7505d2e2c11d0298…

MALICIOUS

PDF

65.4 KB Created: 2021-02-02 19:53:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 95bd34d3c4839dfb057665a04920943c SHA-1: 6e76a3d7e02e004534489e8907e5a017f6283526 SHA-256: 7505d2e2c11d0298040194a8aee065ae878c5cd4e262e67b4ecef96d1d92fd2a
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, and contains an embedded URI pointing to a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to a 'guide'. The presence of multiple external URLs further supports a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/aws?utm_term=wow+championing+our+cause+guide PDF link annotation
    • http://parhelifrl.space/231610580926ulr9.pdfIn PDF document text
    • https://cdn.sqhk.co/xolovagi/jcieghs/living_room_furniture_layout_with_fireplace.pdfIn PDF document text
    • https://cdn.sqhk.co/gasajolop/Ijiheb3/pafojab.pdfIn PDF document text
    • http://krokoboko3.xyz/merumamenemexom7dluj.pdfIn PDF document text
    • http://bluebadge-support.com/72732067189zt00j.pdfIn PDF document text
    • http://tehnikator.ru/60925626268hxyav.pdfIn PDF document text
    • https://cdn.sqhk.co/pujixefan/chbgd6J/nimebelipefepojuw.pdfIn PDF document text
    • https://cdn.sqhk.co/fagisuxupinu/jbhc2gc/17589320205.pdfIn PDF document text
    • http://help-verification.com/abecedario_con_dibujos_para_imprimir_letra_por_letrayc245.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/xhjDFj3/flappy_bird_flying_face.pdfIn PDF document text
    • https://cdn.sqhk.co/fiziroluj/hdihWHj/jajopafa.pdfIn PDF document text
    • https://cdn.sqhk.co/xakurusuk/iaGdaSb/sword_art_online_mod_minecraft_pe.pdfIn PDF document text
    • https://cdn.sqhk.co/wufevinek/3IBidjh/dry_ice_blasting_brick_paint_removal.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/gavexilatuvitaz/81901518244.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/87582828679.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/ryobi_door_hinge_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/ganesh_aarti_bhajan_song.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/79013095265.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_off0000c190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC190 5560 bytes
SHA-256: b64db7a5b1e3b6d7709638419ab6326e7de610e7b72458f2f152009f69e30943
font_01_sfnt_off0000d463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD463 10740 bytes
SHA-256: 8ccfb85aa3b512ed72e9ad954cf50758ed426742da0ede726aa30c4703d349d8

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