Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbed08cfba21eac3…

MALICIOUS

PDF

78.8 KB Created: 2021-03-31 17:10:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 58fea7978b631f108a1dea5db27341a0 SHA-1: 8461e78f1d0d2541b0f11f636dcc3335ddd6acf7 SHA-256: fbed08cfba21eac39f9ecea51e39f8214c4a9601a52e627996cee09c7829da87
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to trading strategies, aiming to trick users into visiting the malicious URL.

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://xajibur.ru/strik?utm_term=simple+day+trading+strategies+that+work PDF link annotation
    • https://nurufumetexode.weebly.com/uploads/1/3/5/3/135323779/0268ecc837a448.pdfIn PDF document text
    • http://nuwevabufa.mypressonline.com/gagoke.pdfIn PDF document text
    • http://faponabon.mygamesonline.org/cours_carrosserie_automobile.pdfIn PDF document text
    • https://cdn.sqhk.co/letijefa/hevgiyy/bed_wars_mod_apk_happymod.pdfIn PDF document text
    • https://bituxusod.weebly.com/uploads/1/3/4/3/134347303/linelogev-vifedobotawifo-bomenujam.pdfIn PDF document text
    • http://istlan.space/4748058975jhnfu.pdfIn PDF document text
    • https://cdn.sqhk.co/xosujopi/iXxbQhg/viva_video_editor_full_unlocked_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/yDhiwqk/i_am_ping_pong_king_mod_apk.pdfIn PDF document text
    • http://mizejodaf.mywebcommunity.org/gitevozafijamasi.pdfIn PDF document text
    • http://dektesheff.xyz/zifuwarapujeneliduvakw3mid.pdfIn PDF document text
    • http://fatunatet.getenjoyment.net/bin_sachivalay_syllabus_2020_maru_gujarat.pdfIn PDF document text
    • http://istlan.space/ch_advantage_mat_cutterprhcg.pdfIn PDF document text
    • http://gomijexa.mywebcommunity.org/questions_asked_in_interview_for_mechanical_engineer_freshers.pdfIn PDF document text
    • https://cdn.sqhk.co/kidurukazag/jagcihr/zodivagalipavazezida.pdfIn PDF document text
    • http://mishgen.com/68118947669os7nh.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/muxozuvalubi/dedazuzenanabigowizaruvul.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/ruzojureda.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/how_to_do_probability_problems_statistics.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/febefoxof.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_off0000f3f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F6 5736 bytes
SHA-256: ceb39c287456495c41e6bd00db8628702dcfba761c6637b31ad327a8d34d0409
font_01_sfnt_off00010762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10762 11232 bytes
SHA-256: 24f4e7e54d1506a30933e1fb69cc9bc6e45deb19f44059022e12dbf3577a1394

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