Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ff8f60cd92886f…

MALICIOUS

PDF

81.8 KB Created: 2021-03-29 20:35:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: e3e64c26c10692bc12a10bed6a9ae205 SHA-1: 5a1994edbc176988be859d32ae782bf14a0d871e SHA-256: b6ff8f60cd92886fd645cd79cda78af0ba82be1d912157873674b084cb5f2d66
96 Risk Score

Malware Insights

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

This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan delivery mechanism. It contains an embedded URL pointing to a suspicious domain, likely intended to host a malicious payload or redirect to a phishing site. The document body, though partially corrupted, suggests a lure related to car engine performance to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://jumiwimov.ru/strik?utm_term=what+makes+a+car+run+rich+or+lean PDF link annotation
    • http://gasiwine.iblogger.org/dafupesagodufemipipokepiw.pdfIn PDF document text
    • https://cdn.sqhk.co/baluwofuk/KgiWBMR/resaxibuxobagimoxojevugef.pdfIn PDF document text
    • https://cdn.sqhk.co/viforoge/BoMhcNc/push_payments_visa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480899/normal_5fc91204defff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370064/normal_5ff4a5e7dd7ae.pdfIn PDF document text
    • https://cdn.sqhk.co/nupasoxure/TOjaNPC/rusirelovidavub.pdfIn PDF document text
    • https://cdn.sqhk.co/nububufi/ha4giUm/nilofom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446016/normal_6043bff5179b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408471/normal_604d12184fe3f.pdfIn PDF document text
    • https://cdn.sqhk.co/wumigapinido/hfznHhe/25486584867.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8737ed36-e533-4840-a979-ce1ef27cdad6/lakitirilujarelajuwinokux.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/somufidudame.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/62334322066.pdfIn PDF document text
    • https://s3.amazonaws.com/goveruduzewoxu/how_do_i_reset_my_consumer_cellular_voicemail_password.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/40730218456.pdfIn PDF document text
    • http://rajiwewovipu.epizy.com/sagukejik.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/glorious_morning_waterflame_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/danganronpa_v3_true_ending_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/gomozejezuvetiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7096dca8-c829-4288-9718-7e665cfc2253/big_mouth_ugly_girl_matt_characterization.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/how_to_replace_lost_driving_license_massachusetts.pdfIn PDF document text
    • http://fuluputig.epizy.com/battleon_classes_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/66685819095.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/can_you_overwatch_on_a_laptop.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_off0000f653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF653 4996 bytes
SHA-256: f0033ecde526a65938e038ca9d5086a9859fc76e6a4e017dc91c913bc264df42
font_01_sfnt_off0001072c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1072C 10548 bytes
SHA-256: 29626e57bf819c6463b10ec2efe6a4b7a4596783cab1098f66cdb784c7b40cda
font_02_sfnt_off00012b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B58 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3