Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0b0d50ae8c6680…

MALICIOUS

PDF

87.5 KB Created: 2021-05-19 06:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: c234f4706ad6adb4f34705dfb7a348cd SHA-1: eb9c0f08f52f5f9cec0ce8e745f03b56bec2c893 SHA-256: 2d0b0d50ae8c6680c8a94558e7f42b9564318ca3c54eec9f5c861adbd7cdabad
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The document body, though heavily obfuscated, suggests a lure related to game mechanics, likely intended to trick users into visiting the malicious URL. No scripts were extracted, but the presence of external URIs and the ML classifier's high confidence indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://lozipotod.ru/strik?utm_term=does+link+summoning+count+as+special+summoning PDF link annotation
    • http://mogitumo.iblogger.org/regular_plural_nouns_list.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377933/normal_5fed1053de757.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393503/normal_605c8a9c2c8b0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462065/normal_5fc9f60d23eaa.pdfIn PDF document text
    • https://ludugekokokak.weebly.com/uploads/1/3/5/3/135313409/jexafiguf_rebosuwa_regufif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407070/normal_6013593d01258.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/a5671c2e.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/lulelepese/56179996315.pdfIn PDF document text
    • http://zosajirigo.rf.gd/gexiwijupivev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb109f37-11a8-4d46-aa9d-58256b551cf0/82220735538.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/uk_address_format_with_country.pdfIn PDF document text
    • http://dufapojemuju.epizy.com/iwai_confidant_guide_persona_5.pdfIn PDF document text
    • http://rulukufijozijud.rf.gd/jubexun.pdfIn PDF document text
    • http://lajixowamimexo.epizy.com/16445883231.pdfIn PDF document text
    • http://powuruzi.epizy.com/tivuzedumozofivorudidivo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7671a82c-3214-4a9f-ba44-d6c7301f5423/5368602769.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/sabijotevaxexak.pdfIn PDF document text
    • http://zinezalidoratov.rf.gd/inverse_trig_functions_word_problems_worksheet.pdfIn PDF document text
    • http://titetirif.epizy.com/11079784009.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/84860130494.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea528f81-271d-4c15-a525-6179fa99a942/wumoveredidowixapa.pdfIn PDF document text
    • http://derefoxawuziten.rf.gd/68416230148.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/faded_piano_sheet_easy_letters.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_off0001170b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1170B 5220 bytes
SHA-256: b583c05f83a8e1fdcdadfce053d6f33259500debe2c336e673ca16524ab2d5b8
font_01_sfnt_off000128d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128D0 11488 bytes
SHA-256: b3089399cc176315f721bcc231c8f3ef8cc8263a6c359385f2875922dda4ae4f

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