PDF malware analysis — malicious · 6f82d1590f1f5a8a

MALICIOUS

PDF

68.1 KB Created: 2021-02-22 05:02:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: 14ec4f6ab7b3c4a98496f9d6acb60f28 SHA-1: 7efb6c94d3151304d2f58f1b134e96c564f0ab82 SHA-256: 6f82d1590f1f5a8a04e778104ad4ecc940355ff932dcc3475e00eb4953d1f8f6

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to search queries, further supporting a phishing attack vector.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wb?keyword=what%20is%20the%20definition%20of%20culture%20social%20studies PDF link annotation
- http://yourcy.com/exhibition_stall_design_portfolioluzht.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4491723/normal_5fed72765edaf.pdfIn PDF document text
- https://zabaparadasikid.weebly.com/uploads/1/3/4/3/134317604/5c2be.pdfIn PDF document text
- https://cdn.sqhk.co/reriwoduriju/ZBLpgdb/wolf_hunterz_reaction.pdfIn PDF document text
- https://cdn.sqhk.co/kutupejotige/idjhZ61/49542418831.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/jolituzoji/top_10_pc_antivirus.pdfIn PDF document text
- https://s3.amazonaws.com/jadere/free_modern_minimalist_powerpoint_template.pdfIn PDF document text
- https://s3.amazonaws.com/fenatagazise/aravind_swamy_tha_songs_indian.pdfIn PDF document text
- https://s3.amazonaws.com/vukumesoj/badrinath_video_songs_free_3gp_mp4.pdfIn PDF document text
- https://s3.amazonaws.com/fomaralunex/mineral_hemoglobin_formation.pdfIn PDF document text
- https://s3.amazonaws.com/muvarelo/59165368195.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ceb7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCEB7	5124 bytes
SHA-256: `76f97dbebbc8e0c3240867c02e712cc6d79791653f26dfe907773d1cab678f28`
`font_01_sfnt_off0000e02a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE02A	10328 bytes
SHA-256: `a8cfb891f590cb40ff35ab557f46a20655b5c044a5c0e254676d51d8e0f29636`

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