Malicious PDF — malware analysis report

Static analysis result for SHA-256 643e1c90dd09cb76…

MALICIOUS

PDF

78.5 KB Created: 2021-02-28 07:09:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 2fdcef233361119f55f921a6485f11b3 SHA-1: 958dbb0b63de6083bafd7019a9cb3447640aff01 SHA-256: 643e1c90dd09cb7615535ec7ca50a833fc0446679254effe39945ca5f30539ae
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to search results or content.

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://xezojetit.ru/wix?keyword=shadows+of+evil+easter+egg+solo PDF link annotation
    • https://voloripilobolim.weebly.com/uploads/1/3/4/6/134635915/be7741bb.pdfIn PDF document text
    • http://copyrighthelpptteam.com/dossier_crpe_emc_exemple424tt.pdfIn PDF document text
    • https://dezilupogebog.weebly.com/uploads/1/3/4/1/134109094/bolesozufawugin.pdfIn PDF document text
    • https://petabururumeje.weebly.com/uploads/1/3/4/9/134902787/vogex_zolorabefu_vuliki.pdfIn PDF document text
    • https://bimevaxufozuz.weebly.com/uploads/1/3/2/6/132683359/cf3533.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/47739818707.pdfIn PDF document text
    • https://lijonalorobu.weebly.com/uploads/1/3/4/3/134340538/faberixibirudup.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bexukavibume.myartsonline.com/xuwobuwanipipurafulu.pdfIn PDF document text
    • http://fuvarijes.atwebpages.com/79210887290.pdfIn PDF document text
    • http://tafiwepamubov.atwebpages.com/do_the_work_steven_pressfield_audiobook_free.pdfIn PDF document text
    • http://zowomazo.epizy.com/47977820925.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/madras_university_apply_consolidated_mark_sheet_online.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/dota_2_auto_chess_economy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/libertango_khatia_buniatishvili_sheet_music.pdfIn PDF document text
    • http://xebinuv.rf.gd/tizijataxa.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/a_r_letter_love_images.pdfIn PDF document text
    • http://jatoxat.atwebpages.com/55370336257.pdfIn PDF document text
    • http://tefabonapo.rf.gd/45295754612.pdfIn PDF document text
    • http://zogosugo.onlinewebshop.net/92609212293.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FB 5424 bytes
SHA-256: 9c396a91660c973b3438d7747b3835093d48ad75818b0348e8723a888eef583c
font_01_sfnt_off00010b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B81 9608 bytes
SHA-256: 1e68befd3307a8c4a78a8f9aea6c6d230d92525b550e82aa1529361932d2edd3

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