Malicious PDF — malware analysis report

Static analysis result for SHA-256 58093998537158fe…

MALICIOUS

PDF

66.9 KB Created: 2021-03-30 20:44:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4092cdac8e3b5cb18bcf2987470e7acb SHA-1: dd953bf1e14a2a73540d12bbb945958d5115bfb6 SHA-256: 58093998537158fecd345c8d1c2b02eb5d1c79ff550aa83cb69d87f31ffc2278
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that contains a URL disguised as a search result for a free PDF download. The embedded URL points to a malicious domain, suggesting a phishing or malware distribution attempt. ClamAV detection and ML classification further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/award?keyword=devi+bhagavatam+telugu+pdf+free+download
    • http://rejemezurufoveg.mywebcommunity.org/fufugigajediw.pdf
    • https://static.s123-cdn-static.com/uploads/4470223/normal_6002c2dc330b1.pdf
    • https://cdn.sqhk.co/vawapisoxe/HhcQ2EO/transfer_news_bbc_chelsea.pdf
    • https://cdn.sqhk.co/xenivoronizu/eCjghja/hashtags_for_social_media_business.pdf
    • https://cdn-cms.f-static.net/uploads/4451927/normal_6061480b14c93.pdf
    • https://cdn-cms.f-static.net/uploads/4488555/normal_605974b255f0d.pdf
    • https://cdn-cms.f-static.net/uploads/4452587/normal_60116ed763a41.pdf
    • https://cdn.sqhk.co/tesadubozino/j3hK4je/stickman_ninja_2_mod_apk_rexdl.pdf
    • https://static.s123-cdn-static.com/uploads/4402956/normal_5fe46533a4add.pdf
    • https://static.s123-cdn-static.com/uploads/4415936/normal_5fe184e83c656.pdf
    • http://zuxemesemubozo.mywebcommunity.org/neoliberal_capitalism.pdf
    • https://cdn.sqhk.co/zirixegip/icajaZd/dimitevasedi.pdf
    • https://cdn-cms.f-static.net/uploads/4424007/normal_60571d7d780d0.pdf
    • http://pojibuvuj.mygamesonline.org/29736556015.pdf
    • https://cdn.sqhk.co/dowotovewi/gljbjc3/business_plan_template_excel_uk.pdf
    • https://cdn.sqhk.co/gutinisiv/WGUgfjj/tifujafifawetomisenulas.pdf
    • https://cdn-cms.f-static.net/uploads/4491936/normal_601976b69faba.pdf
    • https://static.s123-cdn-static.com/uploads/4383467/normal_5ff49d461ccf6.pdf
    • https://cdn-cms.f-static.net/uploads/4380705/normal_6061b88aa87fc.pdf
    • https://static.s123-cdn-static.com/uploads/4405193/normal_5ffb367c1a3ff.pdf
    • https://static.s123-cdn-static.com/uploads/4462056/normal_6001b831d1533.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000ca3c.bin
d32170bdefcb1f5e5098ab7969d29664682bb1c58d0d5683bccdb87b2eb11493
pdf-font-stream PDF embedded font (sfnt) at offset 0xCA3C 5568 bytes
font_01_sfnt_off0000dd1b.bin
a40f991ac14ff4b29949356bbe9aebeeb3664eca7ebd6749a1d03547fa1b675f
pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1B 9748 bytes