Malicious PDF — malware analysis report

Static analysis result for SHA-256 71e20ef359e225a5…

MALICIOUS

PDF

77.9 KB Created: 2021-02-28 12:56:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: fa05db15e5b25949369ac948bc98f856 SHA-1: cd627c33110402e56fc84d849cc512e02d44d14f SHA-256: 71e20ef359e225a542d7171ac012c34739e628727b508f63abb9fe5de511297e
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, which is a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to lead the user to a malicious resource, likely for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=sea+ray+175+parts+manual PDF link annotation
    • http://jaxakevog.22web.org/76628820109.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/formas_de_comunicacin_oral_de_los_pueblos_guatemaltecos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389084/normal_5fe0352055322.pdfIn PDF document text
    • https://cdn.sqhk.co/pobopuwubox/iifLdtl/transmission_fluid_change_how_much.pdfIn PDF document text
    • http://sijemogezabusa.sportsontheweb.net/why_wont_my_mic_let_me_talk.pdfIn PDF document text
    • http://penageli.getenjoyment.net/gefatukasojopomog.pdfIn PDF document text
    • http://madokedaxemosu.22web.org/skyworth_65ub7500_specs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378607/normal_60098434c6318.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/fb8YXgj/setitiruti.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/sazixipame/tuwirosaxodel.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/6641497219.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/electropolish_aluminum_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/dilawetatemesukirenuzu.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/abc_calligraphy_sheets.pdfIn PDF document text
    • http://jiboleramar.epizy.com/lisa_coffee_meme_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/best_free_audiobook_sites.pdfIn PDF document text
    • http://lugukejuraxa.rf.gd/28356937569.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_off0000d6f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F0 5428 bytes
SHA-256: 22562eaa8c5bed0ed2a0606edeaabcee5000005c9800ef265d8d8227701499cb
font_01_sfnt_off0000e95f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95F 13548 bytes
SHA-256: 38f95b1fadfe34cba2cbe8d9334a24e22dadeb1ed817200e2897fa85a16793cc
font_02_sfnt_off00011391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11391 16196 bytes
SHA-256: ca169d226e7270d6c57da5eee88bbe599419370be5c4aeb7f8bffd21c6857157