Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9038ef117954df2…

MALICIOUS

PDF

74.6 KB Created: 2021-03-01 03:34:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 826160c8ecbba6ded19b7865d8380e35 SHA-1: 5a5f0adb17e77bed0577b19ae084f8c4f4e30252 SHA-256: c9038ef117954df2251b33db5f1b721369876456a3202d073d940a6a7d699459
96 Risk Score

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 0.9998

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://midufefew.ru/strik?utm_term=cuales+son+los+signos PDF link annotation
    • http://buwovavozu.getenjoyment.net/lg_inverter_direct_drive_washer_front_load_parts.pdfIn PDF document text
    • http://kozidozilujivox.getenjoyment.net/28395870030.pdfIn PDF document text
    • http://nakidki-alkantara.xyz/zarixuniwoxa9wvgi.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/32484105016.pdfIn PDF document text
    • https://regasefes.weebly.com/uploads/1/3/1/8/131871592/posom.pdfIn PDF document text
    • https://bitilidejiv.weebly.com/uploads/1/3/4/4/134442737/begifubuda.pdfIn PDF document text
    • http://lamejix.scienceontheweb.net/kabinidagejuwafefuxa.pdfIn PDF document text
    • http://lebepufu.mypressonline.com/is_there_an_app_that_can_solve_math_word_problems.pdfIn PDF document text
    • http://gakawisogafuga.mygamesonline.org/vimukutuwitizenevep.pdfIn PDF document text
    • http://levotavo.scienceontheweb.net/73822323082.pdfIn PDF document text
    • http://luminar3-download.xyz/bepuwxnbii.pdfIn PDF document text
    • http://kitafoged.medianewsonline.com/wizukus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/learning_styles_2012.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/call_of_duty_zombies_android_hack.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/wow_leatherworking_guide_tbc.pdfIn PDF document text
    • http://jezevenakos.myartsonline.com/how_to_put_clock_hands_on_a_clock.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/wewukoganevof.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/acronis_true_image_server_crack.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE637 4660 bytes
SHA-256: 6f6a6411a6f1efa56f623691986210a653968997242849afd07152775f4c175e
font_01_sfnt_off0000f620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF620 11560 bytes
SHA-256: 66bb2a77d890786a8990f75d6b105a5fb6f8781ba15926ae9dba9f0a17683d19

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