Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2c6f13f80482c1e…

MALICIOUS

PDF

83.1 KB Created: 2021-04-10 07:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a531ec6914c14652e8ae5e881dd02a87 SHA-1: 288ee975b86feeeda66b8e7bf6acc807699d2859 SHA-256: b2c6f13f80482c1ec6fa70ddc0212adaab769c1d0c2c6e8fe52916e2f8cd3e25
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit vulnerabilities or trick users into downloading further malware.

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://xezojetit.ru/strik?utm_term=samsung+ecobubble+washer+dryer+problems
    • http://bufizuz.22web.org/wendys_nutrition_information_chart.pdf
    • https://vosuwuzede.weebly.com/uploads/1/3/4/7/134743003/fewoneteruwopemosel.pdf
    • http://baugroup.info/gidiv6a9m5.pdf
    • http://graatorama.space/fodilawofujumatvumj.pdf
    • https://ruzuwigowan.weebly.com/uploads/1/3/1/4/131453288/3049322.pdf
    • http://kopuvimu.scienceontheweb.net/what_to_put_inside_a_first_aid_kit.pdf
    • http://rubeatyshop.xyz/65827412810jfcy4.pdf
    • https://cdn-cms.f-static.net/uploads/4467586/normal_60344d187adfe.pdf
    • http://tokio-2020.fun/wosomop93f81.pdf
    • https://zesalogerevuj.weebly.com/uploads/1/3/4/6/134684883/4bee8d.pdf
    • https://ketovezuv.weebly.com/uploads/1/3/4/4/134454878/folosebowisula_bufubesa.pdf
    • http://cetakchantek.com/11514413235j3lbm.pdf
    • http://kosamaritaj.getenjoyment.net/anemia_drepanocitica_pediatria.pdf
    • https://cdn-cms.f-static.net/uploads/4486190/normal_60664605e1485.pdf
    • https://cdn-cms.f-static.net/uploads/4487424/normal_606e4630d4d12.pdf
    • http://rivalo130.com/streetcar_named_desire_themes_and_symbolsmtj44.pdf
    • https://wuwonemuv.weebly.com/uploads/1/3/4/5/134589345/4283673.pdf
    • https://cdn-cms.f-static.net/uploads/4405184/normal_60251e9842b77.pdf
    • https://static.s123-cdn-static.com/uploads/4446272/normal_60034fe245dd5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://danebusuji.onlinewebshop.net/tarot_aleister_crowley_espaol.pdf
    • http://walexesanub.rf.gd/how_to_replace_bearing_in_frigidaire_front_load_washer.pdf
    • http://pusapiwa.epizy.com/78835044211.pdf
    • http://rapuziba.epizy.com/wizebikunaxoj.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_off0001064e.bin
065b533b3e590d252231ab7a76ea37134fec0c9100dc80f85b80aa542511d85a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1064E 5924 bytes
font_01_sfnt_off00011a5b.bin
b14fcd204b3e8ce03c6e8f20fbac5aa6a8977c8da5e0cda93429689b75391f4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x11A5B 10716 bytes