Malicious PDF — malware analysis report

Static analysis result for SHA-256 e030f23f49757648…

MALICIOUS

PDF

79.6 KB Created: 2021-03-03 16:17:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 3fbd35ea4c872268f115aabd438cd8b5 SHA-1: 771d57a18bae01918446bc0490276a3c6410806b SHA-256: e030f23f49757648be4acdeaf47730fabfc2be2680a1a737b17cca6822036fad
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is malicious and a phishing attempt. It embeds a URL that, when visited, likely leads to further malicious content or downloads. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.

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://mezovuduw.ru/123?utm_term=ma+learner%2527s+permit+test+locations PDF link annotation
    • http://balegetiwep.mywebcommunity.org/jarupegilapuro.pdfIn PDF document text
    • http://hardcreditcheck.info/sniper_training_school_for_civiliansrehoy.pdfIn PDF document text
    • https://kukedinuril.weebly.com/uploads/1/3/5/3/135326584/b422e164f021.pdfIn PDF document text
    • http://easy-money-cash.space/nordictrack_gx_4.7_r_cyclex9myr.pdfIn PDF document text
    • https://sorafenime.weebly.com/uploads/1/3/4/3/134320910/4918715.pdfIn PDF document text
    • https://patewowuxafopon.weebly.com/uploads/1/3/4/5/134595548/ferosi.pdfIn PDF document text
    • http://kyukty68.xyz/what_is_apples_social_responsibility7iaq7.pdfIn PDF document text
    • http://fisareboveda.getenjoyment.net/golaretedupofaga.pdfIn PDF document text
    • https://mapadubedebo.weebly.com/uploads/1/3/6/0/136095435/vazenexodonenan.pdfIn PDF document text
    • http://ledimpress.biz/52818616515ig483.pdfIn PDF document text
    • http://wozilimesiz.mypressonline.com/children_of_eden_book.pdfIn PDF document text
    • http://teasmall.space/60938852199yxd45.pdfIn PDF document text
    • https://teligodinawam.weebly.com/uploads/1/3/4/4/134457670/9577969.pdfIn PDF document text
    • https://zewabezasakaru.weebly.com/uploads/1/3/4/5/134593707/3dca5.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/another_word_for_conventions_in_writing.pdfIn PDF document text
    • http://satogitexuvo.myartsonline.com/how_to_repair_ge_microwave_door_handle.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/59748153033.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/viguxatar.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/soxubexonefitajutu.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000ee4d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xEE4D 11884 bytes
SHA-256: 25c830c3555af340feb326f2e5d2d14779d235bdc1a76c274b0b441aad74452b
font_00_sfnt_off0000dcf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF0 5120 bytes
SHA-256: 5b54268f899d0e0869011c1bb0417c9da339272718675f9d8a7bee0d7da31c94
font_02_sfnt_off00010ead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EAD 9908 bytes
SHA-256: 13ba1c8627103142dbf74a4053bff9d90a90bdb95dd8749767219d849a6646c4

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