Malicious PDF — malware analysis report

Static analysis result for SHA-256 785cfe8cee6f7912…

MALICIOUS

PDF

70.5 KB Created: 2021-03-26 04:37:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6096a8235991ed40ab1baf3f8de362f5 SHA-1: 34294d71f836546cde123482daed38be8c90b5c0 SHA-256: 785cfe8cee6f7912ddec6619f2b532c66e8c6d664cb025f787faac67b9e205e3
136 Risk Score

Malware Insights

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

The file is a PDF that contains embedded URLs, one of which is highlighted as an external URI pointing to a suspicious domain. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be instructing the user to open a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://lozipotod.ru/award?keyword=the+attractor+factor+pdf+free+download
    • http://cyberghost.store/50810313510oe3eo.pdf
    • http://beguwidip.scienceontheweb.net/ortopedia_y_traumatologia_panamericana.pdf
    • https://cdn-cms.f-static.net/uploads/4471275/normal_6037bd7a72f0c.pdf
    • https://cdn.sqhk.co/fodumisux/lMhhjfD/44096836689.pdf
    • http://austritkfa.com/zefukoxirotevibapefogegajufsfi.pdf
    • https://cdn.sqhk.co/gujipiror/wifhf8F/warlings_armageddon_mod_apk_revdl.pdf
    • http://nosumiva.mywebcommunity.org/revista_dibujarte_descargar.pdf
    • http://vijepuwobewi.mygamesonline.org/vertebrate_palaeontology_benton.pdf
    • https://cdn.sqhk.co/zipuzedozame/rWbhdhe/globe_load_promos_for_1_month.pdf
    • http://nesarose.sportsontheweb.net/90483140599.pdf
    • http://3-bureaureport.info/evenflo_pivot_modular_travel_system_how_to_foldtwlsj.pdf
    • https://cdn-cms.f-static.net/uploads/4451348/normal_60352a4a78298.pdf
    • https://static.s123-cdn-static.com/uploads/4461505/normal_5fcc6f6a93839.pdf
    • http://myluckywin.site/zorof4r927.pdf
    • http://mugedly.xyz/how_to_use_a_dual_power_max_carpet_washer6uam9.pdf
    • https://cdn.sqhk.co/sovebiba/ehbQv6T/xetesesapukagopap.pdf
    • https://cdn-cms.f-static.net/uploads/4451945/normal_600bd437b36bb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://45ed8376-e832-497f-ab20-0a31924dc5db.filesusr.com/ugd/4b7290_61a4d4bd7b0e4ec4b22a0f83fc9cb671.pdf?index=true
    • https://db6d201d-bdff-4648-9982-d9cfaac7639e.filesusr.com/ugd/98857b_9e6acc7029c74fd5bb73c9ce51d0087d.pdf?index=true
    • https://s3.amazonaws.com/rorives/adekunle_before_you_wake_up_remix.pdf
    • https://s3.amazonaws.com/zuwimadaneb/rivowosubisogoxux.pdf
    • https://1ac5d900-0c69-4f12-8b1d-4e209472b8d2.filesusr.com/ugd/828753_5bae02f6098c4674a7d8e32b6c2c03dc.pdf?index=true
    • https://e2a3f85e-3ce8-4c76-99a2-e63219cad5ad.filesusr.com/ugd/473d25_a35108a65641405f9301b9845df3622d.pdf?index=true
    • https://s3.amazonaws.com/suzixegazunow/kupep.pdf
    • https://s3.amazonaws.com/juzinaramip/sonic_double_bacon_cheeseburger_nutrition_facts.pdf
    • https://s3.amazonaws.com/vuforewebub/simple_in_app_billing_android_tutorial.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_off0000d778.bin
f489fe65b96af007cd4d0a4c032db59146def5442c33871d58e58851d3837063		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD778 5104 bytes
font_01_sfnt_off0000e8e5.bin
0ce19a836c3f205bd8b44fdf77c913c71e1fd013b8b6bf56870d467f7710aed4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E5 10324 bytes

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