Malicious PDF — malware analysis report

Static analysis result for SHA-256 d578c418a158a98f…

MALICIOUS

PDF

80.2 KB Created: 2021-02-20 14:22:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 0d125908924b23d1d9668130adee36a4 SHA-1: 4e0a69b46ce1a5bd9ed8d886453bf257eae25789 SHA-256: d578c418a158a98f17b39f5be20001c4f9bf07cb4755eefad77b6b09a0414009
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. ClamAV also detected this file as a phishing trojan. The embedded URL likely leads to a phishing or malware distribution site, attempting to trick the user into downloading a payload or submitting credentials.

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=wow+how+to+win+friends+and+influence+enemies+reddit PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448719/normal_60039903c58ac.pdfIn PDF document text
    • http://interbank.link/carmageddon_2_windows_7jkqc6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467043/normal_6015c88ccf4f4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463005/normal_6005579d1ae8f.pdfIn PDF document text
    • http://poverkavoda.website/levas6hmus.pdfIn PDF document text
    • http://masajsalonunuz.com/53793808873d0ak2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403417/normal_602a3fd89ca89.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jefesati.rf.gd/72830234146.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/download_aplikasi_murottal_alquran_30_juz_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/wewiro/55534095567.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/26483621282.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/aruba_ap_103_configuration_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/gitebobajevagupoxutovega.pdfIn PDF document text
    • http://zebigibozudival.epizy.com/before_anna_todd_book.pdfIn PDF document text
    • http://jipowefata.epizy.com/toy_story_4_english_audio.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_off0000fcbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBB 5368 bytes
SHA-256: bfc0dda38e3b62fb6d0b3bd5204cd87d60a72103e2a07e4fba28c82571335996
font_01_sfnt_off00010ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE6 10616 bytes
SHA-256: be260910d8ea105ca66ff75468465536c66b06da398f8204ece9e0eecfeb44f2

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