Malicious PDF — malware analysis report

Static analysis result for SHA-256 11d3744f9d214f20…

MALICIOUS

PDF

77.2 KB Created: 2021-02-17 21:43:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 353f1de4afcb53a8d5af638a940ac739 SHA-1: f298b6fe4ada98de74f918c38ac45ea5f2f621e9 SHA-256: 11d3744f9d214f20f0b85bbdec55cd38ec20b90738b2b63b81c6ba11a006959f
134 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous external URIs, many pointing to disposable hosting, and a specific lure for 'live net tv apkpure latest version' strongly suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and URI findings indicate it likely serves as a dropper or redirects to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/wix?keyword=live+net+tv+apkpure+latest+version PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4478688/normal_5fc702f89a847.pdfIn PDF document text
    • http://azakalaza5.xyz/23894485314szrvq.pdfIn PDF document text
    • http://thefortykuti.com/8150482817551b3z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418783/normal_60151e2843a8e.pdfIn PDF document text
    • https://cdn.sqhk.co/bikegola/Shbjhm2/cribbage_rules_last_card_31.pdfIn PDF document text
    • https://cdn.sqhk.co/denepepunuja/FhjgcPW/warzone_2100_mods.pdfIn PDF document text
    • https://cdn.sqhk.co/reruzemafow/yAXEifg/loopy_hd_looper_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/dodalowogiv/hxUBhaI/88002922896.pdfIn PDF document text
    • http://shopee24.site/41935988563kg31q.pdfIn PDF document text
    • https://cdn.sqhk.co/gewanunu/jfMvSh9/63324376086.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373755/normal_60122775803eb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://voputujewijozej.rf.gd/nyc_police_accident_report_overlay.pdfIn PDF document text
    • http://jizipok.rf.gd/86585502504.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/abs_academic_journal_guide.pdfIn PDF document text
    • http://lubuzozerewa.rf.gd/acid_rain_information_for_project.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC89 4876 bytes
SHA-256: d713366ca997c3631849a57dd0677b5466e3a409521d338c9d032ff50129195f
font_01_sfnt_off0000ed3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED3C 10768 bytes
SHA-256: a7d48e412e71c6c6cf8d38f687cb2118714360dba835444b01300981fbce6984
font_02_sfnt_off0001123e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1123E 16192 bytes
SHA-256: 68419ab1db3cb3e5dfe6afdfc03c7fdfb6c1cecf2555eaa9d21ca168b6bc139c

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