Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc7a6d15dadb56cd…

MALICIOUS

PDF

80.2 KB Created: 2021-03-15 10:46:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 98a92db33f2465f3ac1b59f3165b1257 SHA-1: 9cd9882d231a2433654f7ba2ddec23ca6e9c1745 SHA-256: cc7a6d15dadb56cd5c1b24d35ba0c78722aa18dc5ef810e02a8f1f6abeb9236c
104 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a secondary payload. The document body, though heavily obfuscated, suggests a lure related to downloading a PDF, aligning with a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://midufefew.ru/strik?utm_term=group+theory+by+zr+bhatti+pdf+download PDF link annotation
    • http://warewakeb.sportsontheweb.net/88284179145.pdfIn PDF document text
    • https://cdn.sqhk.co/pabefidinaz/nqMghat/crushing_things_with_your_car_videos.pdfIn PDF document text
    • http://kushtanash.ru/pajugigifosufisetoxotevan7bvo0.pdfIn PDF document text
    • http://zikewexer.scienceontheweb.net/bedemexekamatesuvaguga.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/gfhhie5/management_rights_business_pros_and_cons.pdfIn PDF document text
    • http://o-karte-kopilka.com/7659640851cbu78.pdfIn PDF document text
    • https://cdn.sqhk.co/repipedifavi/ibKYjco/holy_city_of_islam_crossword_clue.pdfIn PDF document text
    • http://kimugifogetami.medianewsonline.com/vinigo.pdfIn PDF document text
    • http://oyuncuxx.com/149041512546mtm8.pdfIn PDF document text
    • http://kigaruzolalo.mypressonline.com/digital_photography_definition_computer.pdfIn PDF document text
    • https://cdn.sqhk.co/nurijodefa/wEkjbjg/cubemen_1_mod_apk.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
    • http://rerezedosal.rf.gd/comparative_public_policy.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/26443418091.pdfIn PDF document text
    • http://lesunew.epizy.com/que_es_mejor_terapia_cognitivo_conductual_o_psicoanalisis.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/cobia_fishing_report_pensacola.pdfIn PDF document text
    • http://sufizaj.rf.gd/browserslisterror_unknown_browser_query_android_all_react.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/bulats_sample_test_listening.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/movie_rulz._tv.pdfIn PDF document text
    • http://jezevenakos.myartsonline.com/how_to_adjust_carb_on_husqvarna_128ld.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/foxibejizonijexodipup.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/hooks_for_informational_writing.pdfIn PDF document text
    • http://kanadilu.epizy.com/naporusugix.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/how_to_smoke_a_rump_roast_in_a_smoker.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/83452480116.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/gomebavetunona.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/citra_emulator_for_pc_32_bit.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_off0000ef61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF61 5248 bytes
SHA-256: 7ace43354cda02d507a9df989125962a1e49f82b867a20d4b5de238f6c8d897a
font_01_sfnt_off00010150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10150 10348 bytes
SHA-256: bbe12ae34e494262005bcb07bfbc207b158e6b224e8a9ce1944fd86b8f22632e
font_02_sfnt_off00012498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12498 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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