Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba89a50655548ed4…

MALICIOUS

PDF

76.5 KB Created: 2021-02-24 15:33:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ae08deae13453789ea2a886c2930dcd0 SHA-1: 993f6c7a8ff5334c4b0fd51aab9882b8e4cd4136 SHA-256: ba89a50655548ed430a3496ba62022a6c569c07012163209d8d1362fc6857f06
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains a link to a known malicious redirector, https://yafferge.ru/award?keyword=palmistry+reading+app, which is indicative of phishing or malware distribution. The heuristic 'SE_REMOTE_SUPPORT_LURE' strongly suggests the document's content is designed to trick the user into installing remote support software. The ML classifier also flagged this PDF with high confidence, supporting its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://yafferge.ru/award?keyword=palmistry+reading+app In PDF document text
    • https://static.s123-cdn-static.com/uploads/4367921/normal_5fc9fc72b66cb.pdfIn PDF document text
    • http://com-copyrighit.com/jobikukitaxulajurinenavec4ulr.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/2hgwFib/black_friday_2020_home_depot_appliances.pdfIn PDF document text
    • http://summerita.fun/47186303088zjz2s.pdfIn PDF document text
    • http://macsk.space/hilton_hotema_the_great_law75o16.pdfIn PDF document text
    • https://cdn.sqhk.co/fovomesit/ixIibji/delta_bingo_live_online.pdfIn PDF document text
    • https://cdn.sqhk.co/vorebilifi/mLhjP3f/content-_transfer-_encoding_quoted-_printable_outlook.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381529/normal_5fdb54cb125af.pdfIn PDF document text
    • https://cdn.sqhk.co/divojimo/lbohjie/teamviewer_quicksupport_apk_android_4._2._2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451028/normal_600b1dbfa09bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391624/normal_601f234fdb7a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/30197062928.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/91299893142.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/android_textview_gradient_background_example.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/think_central_science_fusion.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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA3 5380 bytes
SHA-256: d1390a06c28b4c10f9d9237a36c843c007359fe7f2ca991d2da346b2d49c3af2
font_01_sfnt_off000101e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101E8 10412 bytes
SHA-256: fbe1e3a3b686d72077b37957639c30a2c699b24c5c20928bc9a12a47e1562958

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