Malicious PDF — malware analysis report

Static analysis result for SHA-256 6383640bb146dda1…

MALICIOUS

PDF

75.3 KB Created: 2021-04-10 21:49:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b9a280d6a68e42dc598e3adabeb3cb2 SHA-1: 1ef373a9fdae6b5475e88b21132edffaac8c0606 SHA-256: 6383640bb146dda17eee7671e4c57ada9427e4fb6370bd0455b1544d0dd6dc30
136 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of an advance-fee scam lure. It contains an external URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. No scripts were extracted, but the PDF structure and heuristics strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://jumiwimov.ru/strik?utm_term=best+food+for+long+gaming+sessions
    • https://jugusunoju.weebly.com/uploads/1/3/4/6/134625161/rawosom.pdf
    • https://lobobofu.weebly.com/uploads/1/3/4/6/134680821/jiteputevakep.pdf
    • https://jejedutetobi.weebly.com/uploads/1/3/4/6/134662716/bezusupa.pdf
    • https://buduruzuled.weebly.com/uploads/1/3/2/6/132682090/0d0cd4.pdf
    • https://cdn.sqhk.co/nerawotobiz/LpFMieN/petamevovepa.pdf
    • http://chatik85939775.fun/how_to_use_bosch_100_series_dishwasher29c7y.pdf
    • http://memisada.mygamesonline.org/nomizibimabibi.pdf
    • http://shtangennstutkupitseychas.xyz/fezimewukitipivemelv6.pdf
    • http://gumidaz.medianewsonline.com/candidiasis_oral_infantil.pdf
    • http://getveran.site/sabertooth_x79_compatible_graphics_cardsur4xe.pdf
    • https://cdn.sqhk.co/zuronenom/juo7jhf/gymnastics_training_centres_near_me.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/moduxanakuri/simile_worksheets_for_grade_3.pdf
    • https://s3.amazonaws.com/wezukep/vofirejiwodasadidabalow.pdf
    • https://uploads.strikinglycdn.com/files/c089427b-43e2-492a-826c-43d8e72e6b43/fusese.pdf
    • https://s3.amazonaws.com/vinivuxo/vector_illustration_brush_free.pdf
    • https://uploads.strikinglycdn.com/files/8828df41-ef33-4007-a622-0ac53d1e3ac8/simple_forex_trading_strategies.pdf
    • https://uploads.strikinglycdn.com/files/74c23c48-52ba-4d00-aafe-a870bd94a8c6/lavopogirozodemexijof.pdf
    • https://uploads.strikinglycdn.com/files/230dd1bf-7d5b-4718-be4b-4321f3464568/16_personalities_free_premium_profile.pdf
    • https://s3.amazonaws.com/saziwijaxodav/autocad_drawing_file.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_off0000eac4.bin
d554a160d767f2d8653aa7ae1e033af1c8d06140b86d146b1f342d93113daba4
pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC4 5276 bytes
font_01_sfnt_off0000fca3.bin
e088bb7fe0e2364829d69d15236688e7aa699c7e6436543af012fc62ce00f176
pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA3 10484 bytes