Malicious PDF — malware analysis report

Static analysis result for SHA-256 46a109eb16db54ff…

MALICIOUS

PDF

78.1 KB Created: 2021-03-22 06:20:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 8b8d6fd5af2c85791e2345b868ea1bdf SHA-1: ed4df01fe7b0c73ceee01aa94a39193758f785eb SHA-256: 46a109eb16db54ff4a9725875b94904027c7b8f0c9367aaf6ba9048d1e4ca076
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an external URI pointing to 'botokaw.ru', which is likely used to host a phishing page or download a secondary payload. The document body, though heavily obfuscated, suggests a lure related to a 'slope intercept form calculator'. No scripts were extracted, but the presence of external URIs and the malicious verdict strongly suggest a phishing or malware distribution attempt.

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://botokaw.ru/123?utm_term=slope+intercept+form+calculator+using+two+points PDF link annotation
    • http://levelupguild.com/62739959534ydbyc.pdfIn PDF document text
    • http://bottlechainworld.com/best_screen_recorder_online_freeaovf1.pdfIn PDF document text
    • http://fullstacket.online/10677664352eos6.pdfIn PDF document text
    • http://circulyarkadigital.xyz/why_is_my_hp_printing_blank_pages03nwm.pdfIn PDF document text
    • http://wazofos.iblogger.org/mivixo.pdfIn PDF document text
    • http://creamwalls.online/hillsborough_county_schools_spring_break_2020i125v.pdfIn PDF document text
    • http://specrazreshenie.com/gta_5_cheats_ps3bo3ln.pdfIn PDF document text
    • https://cdn.sqhk.co/purovufizu/idhaham/cytus_2_neko_level_lock.pdfIn PDF document text
    • https://cdn.sqhk.co/zumedizojas/egjcjhe/nexuvididulabi.pdfIn PDF document text
    • http://wonder-ita.fun/new_odia_songs_freesp1yo.pdfIn PDF document text
    • http://cosmosqrab.online/bass_guitar_method_freekwpjz.pdfIn PDF document text
    • https://cdn.sqhk.co/joxonorapa/hhgdiiq/tikuvisupiti.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xujiwusa.epizy.com/kimasivuxumufutam.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/32920858085.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/dodexuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/tofewom.pdfIn PDF document text
    • http://fokunibilolegek.rf.gd/re_zero_light_novels_english.pdfIn PDF document text
    • http://tuvonatesomu.epizy.com/god_chasers_tommy_tenney_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/symbicort_budesonide_formoterol_320.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e89e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89E 5532 bytes
SHA-256: 091bacbc89427e6f208b2f874daa11888de84721afcd18ab1afc5e8a74fd6ea4
font_01_sfnt_off0000fb60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB60 2140 bytes
SHA-256: a1c68180eae955d710b1f59d89b7b5bb1f22246194deffa7b9c3298859733f9b
font_02_sfnt_off00010538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10538 10928 bytes
SHA-256: e8b13548704125fea8952e3c23a7eca9c3622a95cfe93f4328dc80b7917c2858

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