Malicious PDF — malware analysis report

Static analysis result for SHA-256 211944be0be0993d…

MALICIOUS

PDF

100.8 KB Created: 2020-12-11 22:00:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1247ef9e27cc225d4c46f984c8cb7bd0 SHA-1: bf53fb06cd03fc574ef193b193dc4acceae4ffa5 SHA-256: 211944be0be0993dee813e2a9c1149a7cbab79940d73760f6250c224e7d9fbd7
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafffi.ru/strik?utm_term=twin+flame+separation+ending+signs PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417670/normal_5f9827a8b016b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386095/normal_5fd0988c61496.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://static1.squarespace.com/static/5fc29575be9b693951158987/t/5fcb25609708706f3996be35/1607148902820/xubosuvuzitanemat.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/94325699047.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc38c0cea4a794d5655cf02/t/5fcb7b727ab0f364abad0bed/1607170931202/68454774943.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10471c30a162e0c531f35/t/5fd1e5688185f4776a0ff446/1607591273349/jewisuba.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c273a13a450babf34cb7/t/5fc42f743570fb44d187764d/1606692725629/62470874443.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/new_born_baby_video.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf28045ca4f7902651b6b/1606218368861/93215996634.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e552ec917750a3d7e003/t/5fc0f950eaf37e3b64beaf83/1606482258340/miwekonugaja.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f7f0c6d9645836228a25/t/5fcadf4f85bc3a28a6feeeee/1607130959947/mazinojadefizufegek.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/xipavozak.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CD5 5192 bytes
SHA-256: 612e9a4e96b5c512e12d89e6cdd32089710463a19b224cdb6c4bf9cc24c8075f
font_01_sfnt_off00013e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E70 10100 bytes
SHA-256: 06108c5c2c166709778f922c10a80758a8e974f20155eb810e6f33390edb46cf
font_02_sfnt_off00016159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16159 16520 bytes
SHA-256: d19a85872ac45e0e29960ee40467169f88498b0f3bcd3ac3ff4e45dd5e3e768d
font_03_sfnt_off0001779a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1779A 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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