Malicious PDF — malware analysis report

Static analysis result for SHA-256 c979908b04dea5e9…

MALICIOUS

PDF

78.8 KB Created: 2021-03-30 08:26:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9c60a0c8201cccb19387c2d1ebe2957 SHA-1: 12d0bda8cd4394ca04534c7fd667a260f7bf2531 SHA-256: c979908b04dea5e9dd1cb06f597e079969459b94176e668e09e4a4c6f5f035ab
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The embedded URL, https://botokaw.ru/award?keyword=bwv+998+pdf+guitare+allegro+pdf, is likely part of the lure to trick the user into downloading a malicious payload. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to exploit vulnerabilities or redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://botokaw.ru/award?keyword=bwv+998+pdf+guitare+allegro+pdf
    • http://teren.fun/ill_be_gone_in_the_dark_podcast_reviewmyb05.pdf
    • https://cdn.sqhk.co/wuwosexed/10idE89/gikesidekemovideti.pdf
    • http://rezotu.xyz/princess_agents_season_2_episode_1xgp68.pdf
    • https://static.s123-cdn-static.com/uploads/4449009/normal_5fcf0be1e2f0b.pdf
    • http://znasila.ru/mary_poppins_supercalifragilisticexpialidocious_meaning_lyrics605cc.pdf
    • http://tapagigozi.medianewsonline.com/robotic_hand_design.pdf
    • http://warajuvevuv.medianewsonline.com/intl_business_machines_stock.pdf
    • http://kebotup.66ghz.com/android_app_store_developer_cost.pdf
    • http://linavaluviriv.getenjoyment.net/sozarurazujupawi.pdf
    • http://tesugujinarijag.mywebcommunity.org/online_banking_system_documentation.pdf
    • http://fuvagezilavez.mygamesonline.org/jemilapafefaxa.pdf
    • https://cdn.sqhk.co/tusufawenu/jid1iaE/86088279675.pdf
    • https://cdn.sqhk.co/sadirurafixi/iipjb6X/checkers_menu_calories.pdf
    • http://slampochka.ru/chicago_style_citation_format_exampleeqytt.pdf
    • https://cdn-cms.f-static.net/uploads/4451971/normal_5fd7f1931a48d.pdf
    • http://artyom.guru/junior_game_designer_salary_ukvo9s1.pdf
    • http://goxelaxonudex.22web.org/neonatal_abstinence_syndrome_treatment.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://korofituzuxigu.onlinewebshop.net/subway_roasted_chicken_salad_nutrition_facts.pdf
    • http://neluwomarar.epizy.com/61788692849.pdf
    • http://vawivulumekil.onlinewebshop.net/storyboard_examples.pdf
    • http://gevejonitu.onlinewebshop.net/how_to_connect_dishwasher_drain_hose_to_air_gap.pdf
    • http://posijibanif.epizy.com/fagumiredufa.pdf
    • http://ruvilex.rf.gd/paradise_lost_milton.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_off0000f467.bin
c1728f23b92da95adc83e4621f5cf28c0093c6061b855b0125fef7b1b626820a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF467 5580 bytes
font_01_sfnt_off00010797.bin
358cc722d12803b75dd3e366e3d3650dee06871ae6677f6202f6c796785f3a56
pdf-font-stream PDF embedded font (sfnt) at offset 0x10797 11172 bytes