Malicious PDF — malware analysis report

Static analysis result for SHA-256 bceb863233e1a963…

MALICIOUS

PDF

74.7 KB Created: 2021-05-01 05:11:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f152485994a6933918d7144aabd6b0dd SHA-1: d7ed688d73f3bcf423b110503204a60ef6d9490f SHA-256: bceb863233e1a9632fa249eff0da7f5ca82545939d552291c93b65630ab86d68
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by multiple heuristics and a machine learning classifier as malicious. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Diamond sutra pdf osho'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dafemum.ru/strik?utm_term=diamond+sutra+pdf+osho
    • https://miletotafog.weebly.com/uploads/1/3/4/7/134758503/vitumexezipozawez.pdf
    • http://vikiduxa.mywebcommunity.org/australian_accounting_standards.pdf
    • https://cdn-cms.f-static.net/uploads/4447434/normal_604d2fb9dad29.pdf
    • https://cdn.sqhk.co/wemopizajazo/fnqnFjc/epinoyload_sub_trader.pdf
    • http://walolexokesufa.sportsontheweb.net/60756435208.pdf
    • https://static.s123-cdn-static.com/uploads/4387814/normal_5fddfc688c974.pdf
    • https://cdn.sqhk.co/lemijexo/je6hi8z/inside_out_characters_emotions_disgust.pdf
    • https://xunopigiwigon.weebly.com/uploads/1/3/1/6/131636761/7598186.pdf
    • https://cdn.sqhk.co/wanoposuj/edkfjc3/58490685114.pdf
    • https://cdn-cms.f-static.net/uploads/4445331/normal_6061b022d0112.pdf
    • https://cdn.sqhk.co/wifavizen/2mgihh1/anime_gif_wallpaper_pc_4k.pdf
    • https://cdn-cms.f-static.net/uploads/4380694/normal_5fd9660641f45.pdf
    • https://cdn-cms.f-static.net/uploads/4408881/normal_5fe8d5fe156a9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lorerexeg/software_for_windows_10_free.pdf
    • https://s3.amazonaws.com/tometubufimopim/badshah_the_don_full_movie_480p.pdf
    • https://uploads.strikinglycdn.com/files/7b6b9798-c7b7-4f65-b195-bae0efcaabb2/24696801143.pdf
    • https://uploads.strikinglycdn.com/files/0a5246f8-771e-4466-af74-ed2be3a739f0/kazigedasopemizowevo.pdf
    • https://uploads.strikinglycdn.com/files/8b842b52-da49-4d49-9145-88e4197ce2cb/92183885130.pdf
    • https://s3.amazonaws.com/zonebon/68747600994.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_off0000e6ca.bin
a6ceaf935743184381338ebd5d30e13cf4c7bd8205ed12628956bad145f2d80d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CA 5248 bytes
font_01_sfnt_off0000f87b.bin
2af0108317dbcdb6eaa028ccf5fc82f10703a43ea1c70ddce81d946c1195999c
pdf-font-stream PDF embedded font (sfnt) at offset 0xF87B 10356 bytes