Malicious PDF — malware analysis report

Static analysis result for SHA-256 327e910eae243028…

MALICIOUS

PDF

84.6 KB Created: 2021-05-10 11:49:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c954a5ed82f9f13594555dad20ec31b SHA-1: 89015381b737e68d8fbe77318bc2e86107c074de SHA-256: 327e910eae243028571ed1be866f467ac4727af4c3dbca5478556ab615932020
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of embedded URLs indicates an attempt to lead the user to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://nipisod.ru/strik?utm_term=what+is+cooperative+federalism+canada
    • http://wuramegojuluz.mywebcommunity.org/botulismo_em_bovinos.pdf
    • https://gimelasu.weebly.com/uploads/1/3/4/5/134513778/42400082cc00a.pdf
    • http://laribij.scienceontheweb.net/defending_jacob_novel_by_william_landay_ending.pdf
    • http://zugapuvu.mywebcommunity.org/advantages_of_early_childhood_education.pdf
    • http://netlysy.online/givilozezu0n8i1.pdf
    • http://my-favshopc.online/konotah9n2o.pdf
    • https://neninilez.weebly.com/uploads/1/3/3/9/133986457/xolaxulenatifinut.pdf
    • http://cheapkeys.site/48554593563jsy6g.pdf
    • https://lolizafopig.weebly.com/uploads/1/3/1/4/131453679/zowutiwilu.pdf
    • http://wugipesirexoxof.mygamesonline.org/livros_apcrifos_minhateca.pdf
    • http://gratoramm.website/truyn_kiu_vit_bng_ting_anhjxomb.pdf
    • https://moxuronanupew.weebly.com/uploads/1/3/4/5/134597487/nubusilumo.pdf
    • http://finonit.mypressonline.com/disuxam.pdf
    • http://bixekakazozerol.mywebcommunity.org/famous_french_words_and_meanings.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://gegagino.epizy.com/mexokuragasus.pdf
    • https://uploads.strikinglycdn.com/files/45431db3-851a-4800-b64a-91c6a9bff5b8/vobulekinizufeni.pdf
    • https://uploads.strikinglycdn.com/files/6ce41503-7404-4b9d-ad1e-690f1a4b26f6/how_to_keep_your_volkswagen_alive_free_download.pdf
    • http://totuxivez.onlinewebshop.net/84450871679.pdf
    • http://safedoguno.onlinewebshop.net/13716490199.pdf
    • https://uploads.strikinglycdn.com/files/08389b1c-3237-48e4-96ec-5c41d2766f21/where_did_core_math_originate.pdf
    • http://biwipekimati.rf.gd/nagojekiresivumusit.pdf
    • https://doi.org/10.21991/C9X68F
    • 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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e88e.bin
27b152d970d7901912d71b4ec7116d8b1819611e12af79b2452524a4aef12143
pdf-font-stream PDF embedded font (sfnt) at offset 0xE88E 5256 bytes
font_01_sfnt_off0000fa51.bin
7a9be8658a7a4e8dd6444b3dcd2f625af1b6e976b26663a0f44b0e0e4778764a
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA51 12792 bytes
font_02_sfnt_off000121ea.bin
2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90
pdf-font-stream PDF embedded font (sfnt) at offset 0x121EA 16060 bytes
font_03_sfnt_off00013681.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x13681 4324 bytes