Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea8d2c04bb888f35…

MALICIOUS

PDF

70.6 KB Created: 2021-03-10 22:29:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6649f3c15ad1f0611496cf2ea1a6b19c SHA-1: 10cd3a333e745f3222e2a54cd5ab409ca856c6f9 SHA-256: ea8d2c04bb888f35d9400af28c395bfca79f4af4067f727dd7b13dea728712e1
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 0.9993

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://jacksth.ru/wix?keyword=wastewater+treatment+webquest+answer+key PDF link annotation
    • http://greyfruit.space/fajulogusagifaakyxh.pdfIn PDF document text
    • http://0fruits.space/roxomifevicowjm.pdfIn PDF document text
    • http://lovelyhouse.online/koxutesefukepizex2g1uq.pdfIn PDF document text
    • http://vittorguxx.site/all_sat_practice_testshg9yx.pdfIn PDF document text
    • http://callup.today/80932564428z893w.pdfIn PDF document text
    • http://universe1.space/vegujikanirelik3q3g.pdfIn PDF document text
    • http://politach.com/fuwamadizagoramoveluzafef8lzp.pdfIn PDF document text
    • http://vidclips.design/22190646014t1npx.pdfIn PDF document text
    • http://samettemiz.xyz/xedixunowiduwimuzemumiw98aln.pdfIn PDF document text
    • http://marketes.pro/441031409840nei0.pdfIn PDF document text
    • http://uchebnoe.website/dufixabivoxiligawotecnqqg.pdfIn PDF document text
    • http://themarkuzmusic.com/guwosu5gqoi.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/bejexe/daxijefoda.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/rizudufanamejaludid.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/windwalker_monk_guide_mop.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/1775662223.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/huckleberry_finn_chapter_20-25_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/fed_beige_book.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/62042804374.pdfIn PDF document text
    • http://kafagida.rf.gd/blade_150cc_side_by_side.pdfIn PDF document text
    • http://mesobuze.epizy.com/10959162435.pdfIn PDF document text
    • http://xevivalekivo.epizy.com/astana_process.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/36971923588.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_off0000d79c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD79C 5336 bytes
SHA-256: 0ba224627187ab88cf0b9ae1cd470bf30b6c902471ef25f1d86e3e9d178158e9
font_01_sfnt_off0000e9d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D0 10256 bytes
SHA-256: c7b642d4a3a326922fd28a8f856a7e28ebd35413d399ee9795f33ae33af3c9f1

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