Malicious PDF — malware analysis report

Static analysis result for SHA-256 01bd3092c3a29b5f…

MALICIOUS

PDF

80.0 KB Created: 2021-02-28 16:34:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 09fdaa9477de08599e7d5b69d81c5fe6 SHA-1: 0199819c9b20dadc8832eebfe713cb16510787ba SHA-256: 01bd3092c3a29b5f15e72cca81b792b17b84a555619a8fd2064110d65aa25025
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though partially corrupted, contains a URL that likely serves as a lure to a phishing or malware distribution site. The presence of an external URI points towards an attempt to redirect the user to a malicious resource.

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://mezovuduw.ru/123?utm_term=what+happened+in+1680+in+american+history PDF link annotation
    • https://cdn.sqhk.co/karopepagu/cnjmZ2i/marvel_comics_online_uk.pdfIn PDF document text
    • http://meetsol.xyz/kulimixagimvqm85.pdfIn PDF document text
    • http://rijewomel.scienceontheweb.net/60002607544.pdfIn PDF document text
    • http://yoganchik.space/how_do_i_get_a_property_mapbk4vn.pdfIn PDF document text
    • http://linavaluviriv.getenjoyment.net/zojizogotegejemibeweri.pdfIn PDF document text
    • http://leduxebawini.22web.org/oporadhi_song_lyrics_in_bengali.pdfIn PDF document text
    • http://dresdenpharma.ru/sijugezekolaxepushuumw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/metubevozisul/newogurakulodawaguxedex.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/jitojukutefudunixug.pdfIn PDF document text
    • http://namepafubi.atwebpages.com/41574841029.pdfIn PDF document text
    • http://kuporalegumema.epizy.com/4816980538.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/equality_property_worksheet.pdfIn PDF document text
    • http://zijedan.atwebpages.com/90298601338.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/compound_interest_problem_with_answer.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA2 5724 bytes
SHA-256: feb837f4774d3388a2d4a933173d269a7ba39e58b398aec54845808b609b35fa
font_01_sfnt_off0000fef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF3 11192 bytes
SHA-256: c1bcad1d115909abf2bb5970a6cb419b6e9a0e183d611f0ae5c09497d4893445
font_02_sfnt_off00012500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12500 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e