Malicious PDF — malware analysis report

Static analysis result for SHA-256 c25c514633189f78…

MALICIOUS

PDF

78.6 KB Created: 2021-01-01 18:22:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 141c6cc41de909664136891cd2e2938f SHA-1: d84375e3be47aa2e870b3ca2951220c48804d089 SHA-256: c25c514633189f78fdb2e083fd9ac14a079e810e70d1d72e678a8769b3c1b219
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains text that appears to be a lure for downloading software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/strik?utm_term=mx+player+video+geet
    • https://godadonalizubo.weebly.com/uploads/1/3/1/4/131437317/lejemaminudorava.pdf
    • https://rolorizumi.weebly.com/uploads/1/3/4/3/134316308/656797.pdf
    • https://sajamokof.weebly.com/uploads/1/3/4/5/134599006/pulaxabutulowan.pdf
    • https://zirovosenes.weebly.com/uploads/1/3/4/3/134316706/sodifuvumidewo.pdf
    • https://cdn.sqhk.co/wirujurumugi/gdhgUha/hay_day_game_download_for_pc.pdf
    • https://gibimigiwu.weebly.com/uploads/1/3/4/7/134748980/8567328.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/votuweroxigezog/49670821253.pdf
    • https://s3.amazonaws.com/temujonuwu/69611469437.pdf
    • https://s3.amazonaws.com/pukaridimupo/67101833149.pdf
    • https://s3.amazonaws.com/juvosi/83495996234.pdf
    • https://s3.amazonaws.com/rodigapigeta/laura_lea_balanced_cookbook.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7df.bin
506bfaf154cca86cdda606ccc0774a8d69d2be3b4424ccf078d398fb841800e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DF 5184 bytes
font_01_sfnt_off000109b1.bin
54dca8a9af5ea34df34273cc7cb18740604fa7efc9c05b05d44a5fe09a6d5b11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109B1 10884 bytes

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