Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7408136f7368307…

MALICIOUS

PDF

72.8 KB Created: 2021-03-22 21:40:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e4d3a4bab74fb6e5091998ed8d454c0e SHA-1: eb502e2bf4d04ba081330d0eb331fd1c09848065 SHA-256: b7408136f736830702ee099708f147cd8f6179f10e0940940cd5219ec4623465
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample was detected as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'lozipotod.ru' combined with a heuristic firing for an 'Urgency / deadline lure' suggests this PDF is designed to trick users into clicking a link, likely for phishing or to download a secondary payload. No scripts were extracted, but the PDF structure itself contains the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://lozipotod.ru/123?utm_term=maine+dil+tujhko+diya+film+video PDF link annotation
    • https://cdn.sqhk.co/koxixoneto/cqNZxgj/lenovo_tablet_e10_user_guide.pdfIn PDF document text
    • http://zamowafa.mywebcommunity.org/how_to_use_cooks_essentials_pressure_cooker_as_a_slow_cooker.pdfIn PDF document text
    • http://zezasarasojid.mywebcommunity.org/metoka.pdfIn PDF document text
    • http://likelid.xyz/wisebiwelurexagewizituz11qfc.pdfIn PDF document text
    • http://maska-respirator.com/norovubod6za4.pdfIn PDF document text
    • https://cdn.sqhk.co/perikowep/vyjaidO/diy_weather_station_home_assistant.pdfIn PDF document text
    • http://fortuneocredit.com/2131061146x7ioe.pdfIn PDF document text
    • http://xodaxedepapopox.mygamesonline.org/jemodoga.pdfIn PDF document text
    • http://parovosi.mygamesonline.org/b_r_automation_studio_tutorial.pdfIn PDF document text
    • http://monstergym.ru/95780167952bpn1g.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzevawu/1ojfgcj/sirona_support_canada.pdfIn PDF document text
    • https://cdn.sqhk.co/vefemenivu/k3wLhgV/ncaa_rowing_championships_2019_d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497370/normal_6051ddfba3cae.pdfIn PDF document text
    • https://cdn.sqhk.co/kefofepobam/ogfMvhb/dark_quest_2_switch_review.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467286/normal_5fe878fd09cba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447663/normal_5fd67cecdedb6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wukevirenesu/accounting_internship_report_essays.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/81796865051.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/zapavinugaroso.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/90544154820.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD054 5060 bytes
SHA-256: a801075adecbacd6bdfe638273ed600dd6df06551aa11213cd954e875994517b
font_01_sfnt_off0000e170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE170 11188 bytes
SHA-256: b5cbe4d500a381287e08aa491e92b2c194d7fe22264ba3567eb278d9e597571f
font_02_sfnt_off00010799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10799 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.