Malicious PDF — malware analysis report

Static analysis result for SHA-256 84be1d96c718c34c…

MALICIOUS

PDF

72.4 KB Created: 2021-04-23 05:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e265224dc75fd0a4014990dfbf093dad SHA-1: 2ea5614e338ca5cc8df454f696042bf24b0f1747 SHA-256: 84be1d96c718c34c83b8d688ef1c528b85580705a14c21431fbf5d653c27bb48
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. ClamAV also detected it as a phishing trojan. The document body, though heavily obfuscated, appears to contain search-related terms, suggesting a phishing lure to drive traffic to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/strik?utm_term=sony+xplod+6+inch+speakers+price
    • https://lumuvimusu.weebly.com/uploads/1/3/4/7/134719948/bumuxev-wefowedonukejew-lodop.pdf
    • http://good-production9.site/prefixes_and_suffixes_activitieszr3rv.pdf
    • https://cdn.sqhk.co/sunalikefazo/eRjgMmn/pogemozadexikodozopif.pdf
    • https://cdn.sqhk.co/papowepu/nihgfDh/savanna_battleground_hide_and_seek_lyrics.pdf
    • https://jinijazi.weebly.com/uploads/1/3/4/6/134668286/danuw.pdf
    • https://kaxepiset.weebly.com/uploads/1/3/2/7/132740291/d10823e3d5464.pdf
    • https://teleroxekafi.weebly.com/uploads/1/3/5/3/135321942/851da7a3.pdf
    • https://motawifuliwax.weebly.com/uploads/1/3/3/9/133999363/jonin.pdf
    • http://wonder-ita.fun/seseratuwesejozenaa6bq.pdf
    • https://tojabefe.weebly.com/uploads/1/3/2/3/132303019/mezakenatipod.pdf
    • https://cdn.sqhk.co/jurugaguvedu/chhwhhX/33308262411.pdf
    • https://cdn.sqhk.co/lojadisexudo/foXgiii/bloons_td_6_dartling_gun_leak.pdf
    • https://cdn.sqhk.co/pevotido/ijZ5TBE/image_button_onclick_android_studio.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/8b2c6816-009b-4ed0-80c2-9a5883b1051a/call_of_cthulhu_character_creation_tips.pdf
    • https://uploads.strikinglycdn.com/files/264b50b9-6062-41bf-8d74-42a5b275cd02/ap_art_concentration_ideas_to_avoid.pdf
    • https://s3.amazonaws.com/kudufigunabi/46131650400.pdf
    • https://s3.amazonaws.com/resixexi/xabasukiporokag.pdf
    • https://s3.amazonaws.com/lorerexeg/reading_fluency_strategies_for_high_school_students.pdf
    • https://s3.amazonaws.com/dinilederu/mepasudalikiluxafe.pdf
    • https://uploads.strikinglycdn.com/files/b237b63f-e91c-4a04-a0fb-8b30b15fc6cb/the_lucifer_effect_quotes.pdf
    • https://uploads.strikinglycdn.com/files/8101da9e-1f02-4efa-9808-b8f6686b7c4b/74973716705.pdf
    • https://uploads.strikinglycdn.com/files/b1516246-e56a-40e1-b1b1-349a961baacd/lumila.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_off0000cd3b.bin
80e992fda3525a90cfa26bdbfcee6abc81702e8eabda62339199d4cbc7801bee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD3B 4004 bytes
font_01_sfnt_off0000db67.bin
e70391dfac4533dccc5173d9742d1cef92a1abdd90d7d0fbb0d0c2a960d6e5e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB67 5652 bytes
font_02_sfnt_off0000eeac.bin
84e780af3c8a7139094d1c59d62fe1d9da60506aae8b196efdb2ef443138e747		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAC 10772 bytes

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