Malicious PDF — malware analysis report

Static analysis result for SHA-256 aebe231984eac5a0…

MALICIOUS

PDF

76.1 KB Created: 2021-03-21 22:49:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 00337706f5826616c79b5ebd44eb1507 SHA-1: 65f1927bf179b437026ad0d12ed5cdf2c95069af SHA-256: aebe231984eac5a007a2d6e15ca867d61d5ba1049f82ba7f586d98626f8305c3
164 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm designed for SEO manipulation. The document body, though heavily obfuscated, includes a search query related to 'George Mason graduation dates 2020', suggesting a lure to disguise the malicious intent. The presence of ClamAV detection and ML classification further supports its malicious nature, likely serving as a dropper or redirector to phishing or malware sites.

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://mezovuduw.ru/wix?keyword=george+mason+graduation+dates+2020 PDF link annotation
    • http://yourcy.com/40633736920rounk.pdfIn PDF document text
    • http://itfamily.pro/james_s_walker_physics_4th_editionaabcr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470402/normal_602688dd43430.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408335/normal_601d31f001916.pdfIn PDF document text
    • http://findattime.com/because_of_mr_terupt_book_trailer77ix2.pdfIn PDF document text
    • http://jonotijero.medianewsonline.com/diode_rectifier_circuit.pdfIn PDF document text
    • http://vozuzutiwajuzip.getenjoyment.net/21937799556.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393901/normal_5ffe9491abe30.pdfIn PDF document text
    • http://dejepuzalew.mygamesonline.org/what_is_the_definition_of_great_depression.pdfIn PDF document text
    • http://everydays.space/cules_son_los_sntomas_de_arterias_tapadasgqwfz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c3373aeb-ed74-4f2d-b631-fa679e0a3f6f.filesusr.com/ugd/cbe7f7_cf3b3646897343639c5f5e7f9222a016.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lazolu/65544197173.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/cabal_force_archer_skill_guide_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/santa_beetle_drive_template.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/abu_garcia_max_winch_vs_black_max.pdfIn PDF document text
    • https://76b44699-1094-4fd8-8d4a-70b7be8159c3.filesusr.com/ugd/c450b2_a54a0b9bdbeb42a1b810969596a038f9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/outlook_app_dark_mode_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/english_grammar_lessons_video.pdfIn PDF document text
    • https://5a4e7950-e122-4b3c-9cf7-894e7f5b1216.filesusr.com/ugd/76aeb6_961660a193004611afc9553069123f76.pdf?index=trueIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE995 5420 bytes
SHA-256: 3a52a7dd994f22ad1143cb46c01597bce8a91952ff157ce71256b407002ecfa3
font_01_sfnt_off0000fbeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBEB 11108 bytes
SHA-256: c2f22f2cfb87aa63dc12e08c9a82348930eb14da6691e4d9b5f4576ed5e98c49

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