Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d012be9963c46ee…

MALICIOUS

PDF

83.9 KB Created: 2021-03-23 21:47:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 17f462586b2297ad53f59ff78e1f3fb8 SHA-1: 3a904542af0db930f9a65d24f4f96313cba6e049 SHA-256: 2d012be9963c46ee110beeb9df13978e68a82128b1f40f66acf6ed0b01be8ce7
96 Risk Score

Malware Insights

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

The PDF file contains a URL that, when clicked, leads to a download for a Minecraft mod installer. This is a common lure for distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent, and the embedded URL is the primary indicator of this malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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=unblocked+minecraft+mod+installer
    • https://static.s123-cdn-static.com/uploads/4455902/normal_6008ce1159e1b.pdf
    • https://static.s123-cdn-static.com/uploads/4489835/normal_5fce71db708aa.pdf
    • http://nosixavol.sportsontheweb.net/tepamezororitot.pdf
    • https://cdn-cms.f-static.net/uploads/4391611/normal_605302969d0a3.pdf
    • https://rasizuxuner.weebly.com/uploads/1/3/1/3/131378923/2944901.pdf
    • https://static.s123-cdn-static.com/uploads/4471230/normal_5ffc5d69a9659.pdf
    • http://sekelenogake.getenjoyment.net/8736088806.pdf
    • https://static.s123-cdn-static.com/uploads/4388174/normal_6003032a78916.pdf
    • http://numulul.mygamesonline.org/why_is_the_fridge_leaking_water_inside_it.pdf
    • https://static.s123-cdn-static.com/uploads/4410015/normal_5fe019f13b5dc.pdf
    • https://cdn-cms.f-static.net/uploads/4410983/normal_6044cd9fea783.pdf
    • http://vegofejolafud.mygamesonline.org/face_beauty_tips_in_tamil.pdf
    • https://cdn-cms.f-static.net/uploads/4401540/normal_601ddf51ba9a3.pdf
    • https://sorawujij.weebly.com/uploads/1/3/4/6/134671526/6262098.pdf
    • https://cdn-cms.f-static.net/uploads/4424376/normal_5fd2f3eea4952.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jinotugiwomo/how_do_you_manage_time_effectively_by_delegating.pdf
    • https://s3.amazonaws.com/tubukeganuji/menipipusejaz.pdf
    • https://s3.amazonaws.com/goneduzum/fujerosonetaba.pdf
    • https://3558f7ac-3b82-44cc-970b-b3f11879385a.filesusr.com/ugd/2e16aa_eba777878bfc4b4a93447e97d4a8b452.pdf?index=true
    • https://s3.amazonaws.com/womirofop/ecbc_guidelines_2007.pdf
    • https://6b2d4799-12fc-456d-8881-596234ac9a0a.filesusr.com/ugd/ae8ff6_f6ea7be7df894b8397579171c5a4c90c.pdf?index=true
    • https://d0bf7e8b-5449-41c0-93e9-161603c0719f.filesusr.com/ugd/197ed4_2a5fa0d3489a4c96ac708817c9ccf134.pdf?index=true
    • https://s3.amazonaws.com/jadudusujuje/zubarofutixu.pdf
    • https://9c789f27-b70c-4c9d-9e83-211ee8f99b38.filesusr.com/ugd/bdeb4c_7b3ff0d4835b44eaa9954f0e07894192.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010a43.bin
73b594df992ae426c7ffcd1a5d868e39be107c440110fee2a42570480eee45c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A43 5364 bytes
font_01_sfnt_off00011c69.bin
cbbc376585ffb3f7967a1d851701b67606e1afd495a876220cf43b579d11c90d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C69 10812 bytes

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