Malicious PDF — malware analysis report

Static analysis result for SHA-256 318d0e018ed72ec4…

MALICIOUS

PDF

82.3 KB Created: 2021-03-27 09:49:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 141d2ef7126c53fc75f9287bdd6daab1 SHA-1: 6be042c904dfad72a511572586515cc0f287b97b SHA-256: 318d0e018ed72ec40c4bb1e236a29d3d98b563f7d44ccef9ef6f96c8164a6b2c
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. The document body, though heavily obfuscated, contains text related to 'sweat equity agreement india', suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://midufefew.ru/wix?keyword=sweat+equity+agreement+india
    • https://static.s123-cdn-static.com/uploads/4388629/normal_6004994f87d5d.pdf
    • https://static.s123-cdn-static.com/uploads/4481985/normal_5fe3a17e50b2f.pdf
    • https://cdn-cms.f-static.net/uploads/4450242/normal_5fd79a24875f1.pdf
    • http://mkuu.club/bozuvasimabojomexurafu17a8t.pdf
    • http://bred-enligne.com/jetuxuvamilinapthmv5.pdf
    • http://trelon.fun/conley_injury_reportlkn5u.pdf
    • http://retoxen.mypressonline.com/89784548597.pdf
    • http://raguvigawak.mypressonline.com/antenna_theory_by_balanis.pdf
    • https://static.s123-cdn-static.com/uploads/4419642/normal_5fff3f7d97b4d.pdf
    • https://cdn-cms.f-static.net/uploads/4486983/normal_603b56b80a9f2.pdf
    • http://mosdendy.store/tokio_myers_bloodstream_sheet_musicqbktc.pdf
    • https://static.s123-cdn-static.com/uploads/4463287/normal_5ffa0e9985e0a.pdf
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdf
    • https://static.s123-cdn-static.com/uploads/4488572/normal_5ff5808259d96.pdf
    • https://cdn-cms.f-static.net/uploads/4383678/normal_60580f688d12e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://2559d30b-64cd-4b4d-aaad-e76a675dde99.filesusr.com/ugd/f5a024_67a333f2bc534750b7f23c646d9c48bd.pdf?index=true
    • https://0dd0cd87-80d3-4eb5-b9c6-73c43c3a6fca.filesusr.com/ugd/f0b6b3_1c423a918050458c810dc3dc7fe0ea74.pdf?index=true
    • https://s3.amazonaws.com/suxugipipolazog/alt_balaji_free_apk.pdf
    • https://s3.amazonaws.com/fakuguvil/94330257201.pdf
    • https://47c0d0ed-94e3-447f-940a-e265262d053f.filesusr.com/ugd/a43ec6_b3132a0a99a340a99d06595ac35fe457.pdf?index=true
    • https://s3.amazonaws.com/gisujubolidine/android_developer_salary_in_kuwait.pdf
    • https://s3.amazonaws.com/tojabixefova/bahubali_3_movie_3gp.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_off00010347.bin
11fad1ffe4aac19058931ae5442fdea843b46aa905b6bebfa543efded7fa92f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10347 5360 bytes
font_01_sfnt_off00011577.bin
9f7f3a2fb638e8b36e9480ab2571dc1abf74a1e52e7e6a8bdac4aa21f15cdb20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11577 10888 bytes

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