Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce19897409a2335b…

MALICIOUS

PDF

76.8 KB Created: 2021-03-11 06:44:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35efdd5543f5480f4a1f510581508292 SHA-1: 1f3c6a0686e6bfda2e40a6ef9f2836548d23124f SHA-256: ce19897409a2335bba9379a5d0c4c8986002c64bb74b13a79f8f50cc95786d62
96 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, with one specifically identified as an external URI pointing to a suspicious domain. ClamAV detection and ML classification strongly indicate malicious content, likely a phishing lure or a distribution point for further malware. The presence of embedded URLs suggests an attempt to redirect the user to malicious content.

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://pelibifir.ru/strik?utm_term=mandeville+fable+of+the+bees+pdf
    • https://cdn.sqhk.co/jemitaso/cCDgfid/death_of_azaria_chamberlain_documentary.pdf
    • http://glasshookahcatering.com/50561407550q1z5c.pdf
    • https://cdn.sqhk.co/jinubodilev/gM7gGRe/home_switchboard_wiring.pdf
    • https://kovunigok.weebly.com/uploads/1/3/5/3/135317038/widofano-vunesimumar-siguzopubasuwir.pdf
    • http://lngcliente.com/41083531158wy8o5.pdf
    • https://fojokelimavame.weebly.com/uploads/1/3/4/7/134713907/5038264.pdf
    • http://boxosusig.22web.org/fagalunifuniripi.pdf
    • https://gikijeza.weebly.com/uploads/1/3/4/4/134465371/zosonobelo.pdf
    • https://forugizatufuru.weebly.com/uploads/1/3/1/4/131410167/jososuwu.pdf
    • https://zifereli.weebly.com/uploads/1/3/4/3/134347484/97383a.pdf
    • http://sarhello.online/xizesupukofa9v4ml.pdf
    • https://wuwawumakilur.weebly.com/uploads/1/3/4/8/134875279/7d1d5df4e.pdf
    • https://cdn.sqhk.co/rojarasam/4aLahjx/ponuzipodasaxofofov.pdf
    • https://cdn.sqhk.co/geruvijiwiw/hYFRhbn/second_hand_clothes_store_near_me.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kopunumepoz.rf.gd/52430234254.pdf
    • http://jujewejono.epizy.com/word_frequency_list_of_american_english_20000.pdf
    • http://fobifuv.epizy.com/lugeriradazamesazepobani.pdf
    • http://pogebikaku.epizy.com/vasetozabuw.pdf
    • http://sawokemapixaf.epizy.com/convert_to_dwg_autocad_2013.pdf
    • http://dujojovixotik.epizy.com/improve_penmanship_worksheet_for_adults.pdf
    • http://jovukanuwu.rf.gd/mapufaregokime.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_off0000ef0b.bin
2c8fed65a1cd7275f26f4e374881f148761714d9d944d80fb9feb5bd7b5488f5
pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0B 5236 bytes
font_01_sfnt_off000100ed.bin
0b3b9ac33d841a5d5dad43ef76e9bfc2094b70e2752f25e4eb0e6c4d9b13d428
pdf-font-stream PDF embedded font (sfnt) at offset 0x100ED 10384 bytes