Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c9507c178ca6630…

MALICIOUS

PDF

81.1 KB Created: 2021-03-15 20:10:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: d4ee524427f83c5c986be97a9ec3a7cf SHA-1: 4737c129787be3f4bf87252b4129ebc41fa173eb SHA-256: 9c9507c178ca66304ddaf284837ba987b4c37ac64897d7694ce31419b007a850
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to research data analysis.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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://leonvi.ru/award?keyword=steps+of+data+analysis+in+qualitative+research+pdf PDF link annotation
    • https://cdn.sqhk.co/rawatajizefu/1uugiic/starz_free_trial_amazon_prime.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413696/normal_5feb4fe1e175b.pdfIn PDF document text
    • https://cdn.sqhk.co/vijukifezu/Pif6Hje/kifajoselinolovisu.pdfIn PDF document text
    • https://cdn.sqhk.co/toralapiluw/JGoYhjh/teachers_assistant_requirements.pdfIn PDF document text
    • https://cdn.sqhk.co/luvutagawata/s2ibge3/parkour_race_freerun_game_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/YidEgiK/music_id_for_roblox_wap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487626/normal_5fe18c37d9d31.pdfIn PDF document text
    • https://cdn.sqhk.co/vozeseseber/jijkjgf/50395320721.pdfIn PDF document text
    • https://cdn.sqhk.co/damukowabij/bDGRgge/motazi.pdfIn PDF document text
    • https://cdn.sqhk.co/kujufemom/ih2xe2u/ninja_go_masters_of_spinjitzu.pdfIn PDF document text
    • https://cdn.sqhk.co/givifevulo/3Fghhcy/18708644902.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/jidhsV7/texas_stars_hockey_score.pdfIn PDF document text
    • https://cdn.sqhk.co/tizadufof/fHjiha8/android_review_exchange_sites.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443815/normal_5fee0b03e0292.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375702/normal_601ed546c7afa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454047/normal_5ff47a70848f0.pdfIn PDF document text
    • https://cdn.sqhk.co/dedesonor/jf01fgh/83128566568.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/lowuwofuxali/metformin_overdose_medscape.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/16641870110.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/24901059124.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/mixem.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/kasanekipukugusisab.pdfIn PDF document text
    • https://s3.amazonaws.com/jezobasit/how_to_do_the_divine_mercy_novena.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/coreldraw_x7_crack_free_utorrent.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/bar_graph_worksheets_5th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/toshiba_synaptics_touchpad_driver_windows_10.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_off0000fbe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE4 5636 bytes
SHA-256: e3b3f9a9454d9abb6b1086088d31b1ad7aa706d73aed060f56b3e0a895335705
font_01_sfnt_off00010f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F16 11432 bytes
SHA-256: a5a9f3ad15f15fff257650b046e9a54bb1ede912b54e0a3ff9f89d2d1c42a263

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