Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2b6b566cd5a9e65…

MALICIOUS

PDF

84.2 KB Created: 2021-04-15 13:48:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 12629481f7b5111d6736a33d2f3b5003 SHA-1: fdbd7f5b4ff17fa383c8dd3ac24492c0f68187ff SHA-256: d2b6b566cd5a9e65d5e2a4482c9e94456dd7c326f1a74db9d5387b40ec7bb1a5
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that points to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely used to deliver a phishing lure or download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://pelibifir.ru/strik?utm_term=onetouch+ultra+2+reset PDF link annotation
    • http://comp-arenda.site/equine_joint_injection_and_regional_anesthesiaazpfw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392857/normal_5fd8276c8ec09.pdfIn PDF document text
    • http://menetufebev.22web.org/hd_lock_screen_wallpaper_free.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408187/normal_602c60a83c424.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410002/normal_60205b057960c.pdfIn PDF document text
    • http://istlan.space/recombinant_insulin_production_process1n1f0.pdfIn PDF document text
    • http://lesanuzununefa.22web.org/84274499396.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389568/normal_6029824e9dc7b.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/jajuzasalikirut/green_natural_background_wallpaper_free.pdfIn PDF document text
    • http://vofofoduwegakuv.rf.gd/34607656104.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/5614169125.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/find_a_sonic_restaurant_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/kenexozimifof.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/46118224488.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/hays_malaysia_salary_guide_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/ultrasound_beamforming_delay_and_sum.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/dark_souls_trilogy_compendium.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/diweriluladavaperasilo.pdfIn PDF document text
    • http://nonomajemiw.rf.gd/mulexonojajumasakor.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/farasuzikewudobikaworupe.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/87874113427.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_off0000f299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF299 5044 bytes
SHA-256: 4f89a8416d36f032a4929cf8c08ccb5560a5c9359937ddb543db08454f4eb47d
font_01_sfnt_off000103b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103B4 11456 bytes
SHA-256: 04f482fda6ed9f8d30ed2237190dc4d77d9eb61e78e46ef84aadd1379a9a9cc6
font_02_sfnt_off00012b1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B1D 16920 bytes
SHA-256: a458ea8686f2ebb47c247777747e08763876c97496fa38851c54c6ef35736056

Open this report in the interactive analyzer, or submit your own file for analysis.