Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8b299d1994bb212…

MALICIOUS

PDF

81.3 KB Created: 2021-04-21 00:28:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ccca6877196f0f6d0c5ba73347a4a3ad SHA-1: bbc4c2c2b6b3a70b03a864ece956a58caa24b4f2 SHA-256: d8b299d1994bb2128ac651f652659a61334658dcbed83da403161093fe5c7f17
96 Risk Score

Malware Insights

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

The file was detected as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely used for phishing or distributing further malware. No scripts were extracted, but the PDF structure itself contains the malicious link.

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://ponafet.ru/strik?utm_term=death+note+episode+7+reddit
    • http://satofaxa.iblogger.org/jobeximavunoj.pdf
    • http://wutugidejavazu.scienceontheweb.net/you_are_the_reason_piano_sheet_music.pdf
    • https://static.s123-cdn-static.com/uploads/4427300/normal_5fcc8e24d3a0f.pdf
    • http://linavaluviriv.getenjoyment.net/56346637547.pdf
    • http://dfds.in/mercruiser_4.3_carburetor_diagramtl57v.pdf
    • http://levipek.22web.org/35901709760.pdf
    • https://static.s123-cdn-static.com/uploads/4465145/normal_6003be0dd2869.pdf
    • https://static.s123-cdn-static.com/uploads/4418570/normal_5fec028cdaaa3.pdf
    • http://mini-cam-v2.club/cut_3d_model_maya_humanc7ri9.pdf
    • http://fartook.online/dorizpsn00.pdf
    • http://purunuza.iblogger.org/rabikidove.pdf
    • http://kitixukizogutik.mygamesonline.org/49808032329.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bategozejaxa.rf.gd/balarama_link.pdf
    • http://penanaras.myartsonline.com/wepomudogezilidiwotese.pdf
    • http://magapupegijovot.epizy.com/isosceles_and_equilateral_triangles_swan_worksheet.pdf
    • https://9e2b3e3a-6a02-4d3b-8ba9-5acc01041672.filesusr.com/ugd/66c878_a07b0e0cd0644b1ba323d72ea3559757.pdf?index=true
    • https://c6de0af5-2a4c-46da-924c-839bccb102c6.filesusr.com/ugd/5f1f0f_34d4bb2dd2774bb28b00817559bbc429.pdf?index=true
    • http://jaminuzifibe.onlinewebshop.net/10091157668.pdf
    • http://dinelak.rf.gd/panasonic_viera_tv_remote_manual.pdf
    • http://bavabime.rf.gd/java_profiler_netbeans.pdf
    • http://dirunor.rf.gd/free_printable_2020_monthly_calendar.pdf
    • 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_off0000ffd0.bin
e9438829ec3978eb4f19f8c7479c2d7f73199c8f58fb90ed9c002f6c280fb9ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD0 5092 bytes
font_01_sfnt_off00011127.bin
29f0f830bd4b1b8db2dd97d5eca8925b0ff9261e952c5a550d79116dcead74d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11127 11020 bytes

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