Malicious PDF — malware analysis report

Static analysis result for SHA-256 c82753a842a73091…

MALICIOUS

PDF

74.4 KB Created: 2021-03-15 09:12:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3959feefbfa7d8d423893fa36937fc3c SHA-1: eb9d4eb292aab46af4741bb61ff0ac28a0189ed1 SHA-256: c82753a842a73091a9e0b575792f6e371f87d970ed8992c0c1bc9314f6a420e5
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. 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, suggests a lure related to a game guide, which is a common tactic for phishing or malware distribution.

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://nipisod.ru/wix?keyword=dragon+village+m+team+guide
    • https://webuwexuzebonal.weebly.com/uploads/1/3/0/7/130775053/gimanafejit.pdf
    • http://detonicufficiale.website/pong_classic_table_tennis_differencea6hd5.pdf
    • https://cdn.sqhk.co/wemofisejaf/Oagf8tf/90003843965.pdf
    • https://navapuru.weebly.com/uploads/1/3/4/6/134642807/zuwewakogitafawopej.pdf
    • http://dhl-order.info/likasileu5hq3.pdf
    • http://flipping-car.online/how_to_get_data_in_excel_vbaszyyr.pdf
    • https://cdn.sqhk.co/niporatibu/YGijhiY/casino_slots_real_money_no_deposit.pdf
    • https://voxivunesiru.weebly.com/uploads/1/3/1/4/131407918/d3696d80ff6c0d3.pdf
    • https://vizumijolotetip.weebly.com/uploads/1/3/5/3/135394273/xakiwiwepofaza-zifugug.pdf
    • https://kopupoko.weebly.com/uploads/1/3/4/4/134471128/b38fb7.pdf
    • https://mikezopa.weebly.com/uploads/1/3/4/3/134366842/levev.pdf
    • http://naturfresh.fun/61085665559drs5h.pdf
    • https://pizolixes.weebly.com/uploads/1/3/4/8/134874149/990582.pdf
    • http://electriccannoz.club/fender_hot_rod_deluxe_amp_serial_numbersdgnf0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wizitifowubux/99713555453.pdf
    • https://s3.amazonaws.com/vebisop/rigekuvesobimimilexisul.pdf
    • https://s3.amazonaws.com/peveziwoguxuzam/40858668062.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_off0000e4cf.bin
4c98e7830bd57e292fdbf88f877429e215ee3c154a9e8fb0f07f95fd12792dab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4CF 5024 bytes
font_01_sfnt_off0000f5db.bin
a0ae4df9f343ed2e542c717ae1543d92a724dde579f29dcaa8c6665fff7e592e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5DB 11488 bytes

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