Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf3098aa67b338b6…

MALICIOUS

PDF

77.7 KB Created: 2021-05-02 12:12:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 13d06a2355f8c42e2e00e6d06ce17150 SHA-1: 2bdf0f94160f209068dfd85581957e62c96587b7 SHA-256: bf3098aa67b338b6185c4d96118d2baf6eb1aa32742082c2aeb71f476b02fef3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to a movie trailer, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=call+me+by+your+name+trailer+2
    • https://cdn.sqhk.co/womilepeba/wfpjd3C/forex_trading_strategies_that_work_understanding_the_fundamentals.pdf
    • https://cdn.sqhk.co/muxaferamet/duhjSig/43100304743.pdf
    • https://falatunasozenu.weebly.com/uploads/1/3/4/7/134762474/zufofeviwi_xefuwofafakab_ditawan.pdf
    • http://zujejilolo.scienceontheweb.net/85951799973.pdf
    • https://cdn.sqhk.co/sojetaji/Nq9lTie/marble_effect_2020_diary.pdf
    • https://cdn.sqhk.co/goberirud/a0hd5ia/manga_clash_warrior_arena_apk_mod.pdf
    • http://towexiwi.sportsontheweb.net/57867227380.pdf
    • https://cdn.sqhk.co/romilononove/jjdidha/cliente_plex_windows_10.pdf
    • https://boxuvudadutubip.weebly.com/uploads/1/3/2/6/132695546/lulugasod.pdf
    • http://vomimaforotagi.mywebcommunity.org/92227491245.pdf
    • https://cdn.sqhk.co/pemazekefise/XEGgcgh/luvofejekefoziz.pdf
    • https://cdn.sqhk.co/keridola/vCfqHif/archipelago_botanicals_havana.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/juliziwojatige/7694716635.pdf
    • http://jatugeset.atwebpages.com/gafubogonixatogi.pdf
    • https://uploads.strikinglycdn.com/files/3677721d-a51d-4850-a13b-65ec6d0d3d95/onkyo_ht-s5800_manual.pdf
    • https://s3.amazonaws.com/bubodeliza/bibotururised.pdf
    • https://s3.amazonaws.com/guvovigo/96701266133.pdf
    • https://s3.amazonaws.com/wiwamoxamo/luwux.pdf
    • https://uploads.strikinglycdn.com/files/38016705-5f07-4160-84ad-f2794d5d2df3/minecraft_guide_to_survival.pdf
    • https://s3.amazonaws.com/serogajugomiji/fameliza.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_off0000e548.bin
53472f0d6f5b430a5691fe4e234add5fe0bfde06ab4065599915c3d3e1e92aea
pdf-font-stream PDF embedded font (sfnt) at offset 0xE548 4932 bytes
font_01_sfnt_off0000f600.bin
98605a7de36358f97483cc72512caa0ef77519bd9032f6800f921d30ef7e538b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF600 11024 bytes
font_02_sfnt_off00011bd7.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x11BD7 4324 bytes