Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de181a69408fdbb…

MALICIOUS

PDF

76.0 KB Created: 2020-12-06 01:15:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 4e39d90fd6d923896090be33a50432f3 SHA-1: b3fb5e0318dea498d1b3635db659406c1fedb043 SHA-256: 1de181a69408fdbb8af189bb4c5e8ac04f93cc973750fcde7c69478fb2b27726
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://traffine.ru/strik?utm_term=ff14+patron+deity+matter', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'ff14 patron deity matter'. No scripts were extracted, but the presence of an external URI in a malicious PDF strongly suggests an attempt to redirect the user to a harmful resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffine.ru/strik?utm_term=ff14+patron+deity+matter PDF link annotation
    • https://datevapo.weebly.com/uploads/1/3/4/3/134338939/6138718.pdfIn PDF document text
    • https://liletalezawo.weebly.com/uploads/1/3/4/5/134591830/515f2.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/7579397.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385214/normal_5f918a4cc8464.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc4f5382bbd740658208855/t/5fc6b92d788a962b7c160ce9/1606859053469/snake_game_online_with_friends.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e110403f5353fd95a22f/t/5fc404309b1ed035385a3370/1606681648973/ffxiv_nidhogg_ex.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd4506de5dd04e4f76bc98/1606239494069/hotel_montana_haiti_before_earthquake.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e727ea4a794d5645064f/t/5fc142793570fb44d130d900/1606500985433/99323224762.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/47822166161.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/ratedazasetujoreravanaxo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc34a14bda9c57a97cd8cb5/t/5fc52f3b9b1ed0353884b03a/1606758204847/46527248757.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2d1048139af037651a389/t/5fc75918bfb90028be4fe8d5/1606899992880/temple_run_3_game_free_play.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf5e8b4c4d833b8bcf2e6/1606219240727/magic_circle_against_law_pathfinder.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_off0000cfa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA1 5172 bytes
SHA-256: ab90aa2d99d489f306b2565241f637ae2a6e63752e6d73ea3c55f5499ffe836c
font_01_sfnt_off0000e140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE140 14520 bytes
SHA-256: 444fd3f48ea2c5a71c541d1a6acd88ed096b7fcc022aa381b0cb114dbc111529
font_02_sfnt_off00010e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E5F 16080 bytes
SHA-256: ae4c1039909c6b18400a693790947520403f0a9c3cdc5bdc37254682f4165006

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