Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eea61df96f2ea59…

MALICIOUS

PDF

85.5 KB Created: 2021-03-05 19:12:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b7a74a36a07281c56d94f01b625c6cf SHA-1: ef3432b9d70b1b6405f00ef1524173e53a59d9f1 SHA-256: 3eea61df96f2ea59559a3dbc2e46d107ba38a9b4b17b58dea921b73332c26a66
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a common household item, suggesting a social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://gimoguvi.ru/aws?utm_term=how+to+put+a+bobbin+in+a+brother+machine
    • https://cdn-cms.f-static.net/uploads/4370275/normal_6024707c26ed9.pdf
    • https://vokavubibobudew.weebly.com/uploads/1/3/5/3/135316357/956082615e870.pdf
    • https://wawizaliw.weebly.com/uploads/1/3/3/9/133986908/pumoxe.pdf
    • http://nexofozupugasi.mywebcommunity.org/62756300884.pdf
    • https://cdn-cms.f-static.net/uploads/4383800/normal_6010f242a995c.pdf
    • https://cdn-cms.f-static.net/uploads/4471481/normal_603ae734190ea.pdf
    • https://weranatowo.weebly.com/uploads/1/3/1/4/131408071/mureseberav_gizomil.pdf
    • https://static.s123-cdn-static.com/uploads/4388052/normal_6008facd97d95.pdf
    • http://rinujajija.getenjoyment.net/iliad_book_10_controversy.pdf
    • https://zakewurez.weebly.com/uploads/1/3/4/4/134471700/6620857.pdf
    • https://biwawidojimu.weebly.com/uploads/1/3/4/6/134648839/rugekejovogubanekik.pdf
    • https://jobifavizatop.weebly.com/uploads/1/3/4/1/134108852/wokaworirereluwije.pdf
    • http://jolixasij.sportsontheweb.net/what_do_circuit_symbols_mean.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://bibekuxamawijoz.epizy.com/jemajelawisomojimowupuk.pdf
    • http://memugeb.rf.gd/68829331652.pdf
    • http://mupufuten.epizy.com/hp_laserjet_p2015_troubleshooting.pdf
    • http://wijijatalil.epizy.com/what_countries_are_in_world_zone_3.pdf
    • http://xeroxuzowi.epizy.com/atm_card_apply_letter_format_in_tamil.pdf
    • http://soranodabiwegi.myartsonline.com/what_caused_the_stock_market_to_crash_great_depression.pdf
    • http://butopam.rf.gd/comments_for_progress_report_preschool.pdf
    • http://sufelubunat.epizy.com/54583913358.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010435.bin
8b68e896fe5d29d1f7cd319c36f1370064a8f01418978eafc29f9eba64a58df6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10435 5036 bytes
font_01_sfnt_off0001152e.bin
ad70f6e6f630808c1a841b10e7facadcf00e168126cf64890ff67e7fa4d50e40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1152E 10928 bytes
font_02_sfnt_off00013a6a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A6A 4324 bytes

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