Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6085e57490c8761…

MALICIOUS

PDF

82.6 KB Created: 2021-03-19 08:33:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48bc434b2b17973fd5c3b0d682db80d3 SHA-1: 157a44f47691cc194aeecac9928022cc6e8bb4e4 SHA-256: e6085e57490c87619563c5463df1185da221eb72601e8e16a6cad2748b20a324
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains keywords related to 'chat codes minecraft' and the authoring application, suggesting a lure to a fake search result page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/wix?keyword=chat+codes+minecraft
    • https://cdn.sqhk.co/dagosasojo/jjihbie/44930576811.pdf
    • https://cdn.sqhk.co/tategupet/gjgi6H6/crash_test_dummy_video_game.pdf
    • http://termometr-medikal.site/why_does_my_tankless_water_heater_not_get_hotrwy0v.pdf
    • http://finofubamu.mygamesonline.org/87340545468.pdf
    • http://notdull-eng.online/pakivuvikinevrvaik.pdf
    • http://fumatiw.mypressonline.com/69062448449.pdf
    • https://cdn-cms.f-static.net/uploads/4383475/normal_5fd9befa4d08f.pdf
    • http://hurleyshamburgers.com/calendar_template_free_august_2018yiypr.pdf
    • https://cdn.sqhk.co/vixuwegijelo/vhjZidf/visoxaxisa.pdf
    • http://mazipuvaxa.mywebcommunity.org/adobe_to_word_converter_for_mac.pdf
    • http://changepass.online/29876450144ccodk.pdf
    • https://cdn.sqhk.co/ripigopes/mgOjbhb/16914524559.pdf
    • http://complerbnp.com/60217679041yllu5.pdf
    • https://cdn.sqhk.co/figakeves/1Z2rvjg/recarga_super_rapida_apk.pdf
    • https://cdn-cms.f-static.net/uploads/4486975/normal_604ecf17b8eef.pdf
    • https://cdn.sqhk.co/pomorezolo/nhgchhM/my_city_hospital_life_pretend_doctors_lifestyles.pdf
    • https://static.s123-cdn-static.com/uploads/4498992/normal_5fe284ed3f8fb.pdf
    • https://cdn.sqhk.co/pumopivosoba/iiPhCii/blues_music_radio_stations_online.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://nerezusilanake.atwebpages.com/how_to_make_someone_fall_in_love_through_text.pdf
    • https://s3.amazonaws.com/gavexilatuvitaz/acomiadament_carta_formal_catal.pdf
    • https://s3.amazonaws.com/wujafivabipo/asientos_contables_de_costos_ejemplos_peru.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f958.bin
f23859013ff05b541c3bdd45c1a07f84b39a2e0e2905fd3803b19a1befac4a1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF958 5040 bytes
font_01_sfnt_off00010a49.bin
7ee520f55f3b3ce472402fe535f27ae9b2cc3a7eebf90e9fdd7d95b1a3cca683		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A49 11036 bytes
font_02_sfnt_off00012f5f.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F5F 4324 bytes

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