Malicious PDF — malware analysis report

Static analysis result for SHA-256 e32bcb7a20bab9cf…

MALICIOUS

PDF

79.4 KB Created: 2021-02-26 02:53:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 02098d733c0768f083b137cc3bbfe8ac SHA-1: 60f1a432471e501f619bbfe714a7b785fa259cde SHA-256: e32bcb7a20bab9cf94b750f8496362535000376d4c0daf6e68868ef314f5bebd
184 Risk Score

Malware Insights

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

This PDF file is identified as malicious by multiple heuristics and an ML classifier, indicating it is likely a phishing or malware distribution lure. The embedded links point to known malicious redirector infrastructure and disposable hosting, suggesting an attempt to direct users to harmful content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest it is designed to exploit users through deceptive content, likely leading to a second-stage download or phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://crophysi.ru/wix?keyword=bps+calendar+2019-20 In PDF document text
    • https://juzudibat.weebly.com/uploads/1/3/4/3/134328144/rebikiki.pdfIn PDF document text
    • http://proba7.xyz/ketogenic_diet_food_list_free66sgn.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/1454096.pdfIn PDF document text
    • https://kodidenub.weebly.com/uploads/1/3/4/3/134328035/5569638.pdfIn PDF document text
    • https://cdn.sqhk.co/nepelusir/hdgeie7/video_tv_cast_for_chromecast_pro.pdfIn PDF document text
    • https://cdn.sqhk.co/lodoseduler/RZFE6MC/eso_death_knight_leveling_build.pdfIn PDF document text
    • https://papokekes.weebly.com/uploads/1/3/4/5/134599002/xesawir-gixug.pdfIn PDF document text
    • https://bezuwodasufex.weebly.com/uploads/1/3/2/6/132696249/1014593.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/IigVH1V/tomorrows_race_cards_at_york.pdfIn PDF document text
    • https://cdn.sqhk.co/tesolivu/jgfJif8/78579216935.pdfIn PDF document text
    • https://bogekivusuwi.weebly.com/uploads/1/3/4/6/134604255/pijuxajewunujego.pdfIn PDF document text
    • http://sokuzise.iblogger.org/change_default_template_powerpoint_2016_mac.pdfIn PDF document text
    • http://pobasomitiji.22web.org/53549749924.pdfIn PDF document text
    • https://befewegumezozem.weebly.com/uploads/1/3/1/4/131453636/2968715.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://lipewolitaden.epizy.com/jolep.pdfIn PDF document text
    • http://kukalofawofami.epizy.com/23872154222.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/amd_radeon_r5_m330_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/83690957835.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED26 5180 bytes
SHA-256: 292fc1d611430f10d970a44d23606c3c146e86d075e6186352cd1a1e68d13e36
font_01_sfnt_off0000fec7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC7 10380 bytes
SHA-256: 990020badc88691bef78e25cef9d1da9d2c25831b9d0f195784877d8b1401445
font_02_sfnt_off0001224a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1224A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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