Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fec0cabb7d15a8e…

MALICIOUS

PDF

68.4 KB Created: 2021-01-03 14:16:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2ff81075181a05862c1d3079cd47ebd1 SHA-1: 2443dca48e4668d574ee235f6855dd49dfd3e3e0 SHA-256: 1fec0cabb7d15a8ea93815e8dfd31dc8526d62b8cc366b8a369aa85b6484493f
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://trafficel.ru/aws?utm_term=ice+beauty+game PDF link annotation
    • https://cdn.sqhk.co/zusisoko/ebhchcA/reserimolulenivebodenag.pdfIn PDF document text
    • https://cdn.sqhk.co/poxufape/SkoX10X/girl_dancing_ballet_music_video.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376879/normal_5f91a86d3bc91.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378382/normal_5fe035a3b46c7.pdfIn PDF document text
    • https://cdn.sqhk.co/fedovusig/ghZozjc/nyan_cat_lost_in_space_download.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/sugosubexez/zedirivuv.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/ancient_egypt_map_activity.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/nimiro.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/nitofela.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/chal_chal_ve_tu_bandeya_song.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_off0000cdce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDCE 4992 bytes
SHA-256: a106abc60d4667e0f26b967315eab0a7cb25c4f7195c71786f11d1ad40447339
font_01_sfnt_off0000decd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECD 11252 bytes
SHA-256: 8040e267ba9c2c5beca5a2c95f6ec5b43c16e256876d489b30146350abf568bc

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