Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eb7f676e3442223…

MALICIOUS

PDF

286.6 KB Created: 2021-04-05 03:53:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca136f9d10bafeceb3838c3ae635341f SHA-1: b5ae727f275ffabe18335ba33f14eed5d9c9f979 SHA-256: 5eb7f676e3442223402b719086a54ae14f85e6017e4cf6d615d339fef9c98fdd
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that directs users to a malicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to Mexican independence, which is a common tactic for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9792

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/strik?utm_term=una+rese%25C3%25B1a+breve+sobre+la+independencia+de+mexico
    • https://cdn.sqhk.co/gabamulijawe/jfujh5f/62908139729.pdf
    • https://static.s123-cdn-static.com/uploads/4376870/normal_5fcdb2164af55.pdf
    • https://cdn-cms.f-static.net/uploads/4417805/normal_602518c47a484.pdf
    • https://pakujefaf.weebly.com/uploads/1/3/0/7/130740244/vefowaweje.pdf
    • https://cdn.sqhk.co/savageven/eQhgtjC/xajivanerasewumowoditu.pdf
    • https://cdn.sqhk.co/fironabe/f7geiaC/bajogetivawoduje.pdf
    • https://static.s123-cdn-static.com/uploads/4404725/normal_5fe2d2a57e900.pdf
    • https://cdn.sqhk.co/vusopukov/jwfMzgj/pilafamofiroj.pdf
    • https://cdn.sqhk.co/bisadumiza/jihViex/52082814740.pdf
    • https://cdn-cms.f-static.net/uploads/4413011/normal_5fe8a46a9d428.pdf
    • https://cdn.sqhk.co/vexedobasof/fjhhagg/odd_eyes_raging_dragon_yugipedia.pdf
    • https://cdn-cms.f-static.net/uploads/4468534/normal_5fd28c6a08b7a.pdf
    • https://zuxivojeduzudog.weebly.com/uploads/1/3/1/3/131381782/896954.pdf
    • https://cdn-cms.f-static.net/uploads/4450513/normal_605abba37da1b.pdf
    • https://cdn-cms.f-static.net/uploads/4377120/normal_601403ab1edbb.pdf
    • https://cdn.sqhk.co/gofejenizew/hg0jajd/tisewub.pdf
    • https://cdn-cms.f-static.net/uploads/4427091/normal_601e153a9becd.pdf
    • https://cdn.sqhk.co/sepovili/c4gj1yq/basketball_world_cup_2019_tv_schedule.pdf
    • https://xidawelopumez.weebly.com/uploads/1/3/4/4/134439163/ad4896df935c7.pdf
    • https://jotovaxawunujej.weebly.com/uploads/1/3/1/8/131856347/5f7275dea17cc5.pdf
    • https://cdn.sqhk.co/mesafovojifo/zhjghgj/minecraft_download_school_chromebook.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://9005a25f-7293-4a73-bb0f-bc58e8c16807.filesusr.com/ugd/e3834b_07914c96f2b24fd0a1f9f02100cf5e40.pdf?index=true
    • https://e082cb0d-9c22-4a21-acb7-e2c6127a51d3.filesusr.com/ugd/ff0c06_deacc88641d44674be88ac7f30c352cd.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00041e8d.bin
5c177de2fbdeca4b7353febad06e4c11efdf4a4a3bd6647f7d7294f271bbf707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x41E8D 5396 bytes
font_01_sfnt_off0004307d.bin
b1e325d40a1920f0f26bdf352b51e70206d10f3e4cf1fed7fdfad8c9fcff3ffc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4307D 13032 bytes
font_02_sfnt_off00045a13.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45A13 4324 bytes

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