Malicious PDF — malware analysis report

Static analysis result for SHA-256 2177252e3f774d84…

MALICIOUS

PDF

81.4 KB Created: 2021-03-31 00:19:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 08ab7e46424c2c0a0e6394a1088e7a58 SHA-1: 2da0b321cdad7597bfb610413629d8fd435101cf SHA-256: 2177252e3f774d84d68c24fc8977d64c16792d2c1cee37c95d231f89f6cca078
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that redirects to a suspicious domain, likely intended to host a phishing page or malware. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, contains text fragments that may be part of a lure.

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://druttle.ru/award?keyword=i+can+t+be+bothered+doing+anything+pdf
    • http://axecheat5.xyz/california_zephyr_how_many_daysamzu8.pdf
    • https://cdn-cms.f-static.net/uploads/4385012/normal_60244bd8c1c48.pdf
    • https://cdn-cms.f-static.net/uploads/4415291/normal_604f759e22342.pdf
    • http://vnds-v.website/folding_knife_template8qtyy.pdf
    • http://copyright-notice-ig.com/303_squadron_battle_of_britain_walkthroughod56m.pdf
    • http://carins.info/xugajasojegulatodofamodazuoun.pdf
    • http://macsk.space/quaker_old_fashioned_oatmeal_microwave_instructions674lw.pdf
    • https://cdn-cms.f-static.net/uploads/4370746/normal_603acf0dd7eb5.pdf
    • http://vnds-super.space/885271893409ovff.pdf
    • https://cdn-cms.f-static.net/uploads/4495525/normal_60614e3d4d455.pdf
    • https://static.s123-cdn-static.com/uploads/4454179/normal_5fc891967b7c6.pdf
    • http://itdomen.fun/can_you_day_trade_stocks_in_a_roth_irakthzq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fukepez/the_lincoln_lawyer_imdb_parents_guide.pdf
    • http://xidozex.epizy.com/how_many_satellites_does_dish_network_have_in_the_sky.pdf
    • https://ed36ca5d-e6e9-4caf-8bbb-3a8af5cfee16.filesusr.com/ugd/971556_2d206c76bffe433a828f8f2fc1f196a3.pdf?index=true
    • https://9f9bd9fa-00fe-4673-b34e-9a629881f524.filesusr.com/ugd/09273f_f5c7741ef2554e26b5835e6705fca774.pdf?index=true
    • https://ae26bae5-b1f3-4fb2-a0ba-5d2f2d23988c.filesusr.com/ugd/aec2ea_489b157ab550415098816422cefce397.pdf?index=true
    • http://befadiw.rf.gd/apache_jmeter_3._3_jar.pdf
    • https://469ee322-798e-4c1d-9571-af6764901f97.filesusr.com/ugd/57169b_3b4d492a6ae742728f2e21ab2cd12a02.pdf?index=true
    • https://s3.amazonaws.com/tedowafomaru/av_malformation_brain_surgery.pdf
    • https://s3.amazonaws.com/laginekux/whats_the_difference_between_vitamix_5200_and_5300.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_off000101da.bin
2e6e12f979840f26072736dd4dfaf752a08ac52a4e4ac27f99f4ec850b2d1ccc
pdf-font-stream PDF embedded font (sfnt) at offset 0x101DA 5388 bytes
font_01_sfnt_off0001142a.bin
c83be7650a510017a8a4f8015089c3e0053dfcceb8b52f08052b8f6102c66a37
pdf-font-stream PDF embedded font (sfnt) at offset 0x1142A 10516 bytes