Malicious PDF — malware analysis report

Static analysis result for SHA-256 f62c88d53b58d415…

MALICIOUS

PDF

80.4 KB Created: 2021-03-12 03:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: a3457ef700579b6c627cd81b47dde454 SHA-1: 949f52d79f6a422b6d9edcf57d2cde5ac38633b0 SHA-256: f62c88d53b58d4153d80f4e8bb054ba1ae889a19c4d86d9cfba33ea3c0effc72
96 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 a high risk score. It contains an embedded URL pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a product manual.

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/strik?utm_term=nostalgia+electrics+rkp630+retro+series+kettle+popcorn+maker+manual PDF link annotation
    • http://idealslimitaly-official.site/kewowokafutibut0a5e.pdfIn PDF document text
    • http://lazerepil.site/jukudajobefosipop9a8s4.pdfIn PDF document text
    • http://basvuruizleme.online/kixotopjhx9p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405644/normal_5fdbfa8b1dee6.pdfIn PDF document text
    • http://freefire-gifts.com/vudozarikaga8dyqe.pdfIn PDF document text
    • http://aires.fun/cinderella_pantomime_script_for_schools3es3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446773/normal_6039ea9cd6d10.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://julivaradisakit.rf.gd/boston_matrix_template_word.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ee6f559-434d-4824-a65b-061d9a090090/28397368936.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/calendar_week_2018_template.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/bajuwejufiwefafifufuvipa.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/gaxekumesezabi.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/58334281386.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/zenujupijubixaba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfa35832-80f5-4c7d-adb6-2b3c2270bd19/kevojufexizolizosu.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/44964193485.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32ea1e56-9ba6-4f36-9b5f-dd671d24747c/daxifologedopiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c228e58-6dd4-4ade-8cb2-b0a2c272c4c6/lafogasezazevi.pdfIn PDF document text
    • http://sikitoda.rf.gd/best_stock_android_phones_under_30000.pdfIn PDF document text
    • http://sudonek.epizy.com/87214100474.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE249 5748 bytes
SHA-256: dcbb457b4fe6d06f82d8e07448b976aaae1b93ae27357f3e3a4d7acdc345619f
font_01_sfnt_off0000f5cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5CD 11592 bytes
SHA-256: 49e1bb588335f9bfce796d6720fae5ca199aafd8b8cb89422e70c6f50ceb083d
font_02_sfnt_off00011c48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C48 16132 bytes
SHA-256: 4f6d6443d667672870c38ce4e1d364e29e61a0df6fd2d8217a47270b9fff04c9

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