Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e3cd10b97323cf5…

MALICIOUS

PDF

75.0 KB Created: 2021-04-08 05:53:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7af4373824fffb0e2456a92a91db43f SHA-1: 5cc554ac94a4b939f4e4cf5bfb1d40c02e005cb8 SHA-256: 6e3cd10b97323cf5eae6928174efeb6c974e3ee17707c6aee0e526275c219998
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, appears to contain keywords related to a summer camp, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://dafemum.ru/wix?keyword=alpine+school+district+clear+creek+summer+camp
    • http://tokepubex.getenjoyment.net/34942796404.pdf
    • https://static.s123-cdn-static.com/uploads/4388060/normal_5feda9add89aa.pdf
    • http://xeberok.getenjoyment.net/aashto_lrfd_bridge_design_specifications_7th_edition_free.pdf
    • http://bokazisenu.22web.org/federalist_10_study_guide_answers.pdf
    • https://cdn-cms.f-static.net/uploads/4426408/normal_60170e11cffa2.pdf
    • http://ribadubeko.scienceontheweb.net/free_will_brewing_kragle_ipa.pdf
    • https://nixuxani.weebly.com/uploads/1/3/4/4/134433038/namesumifuxitu-tominukume-nabilutiveb-tamedikanat.pdf
    • https://lopinelu.weebly.com/uploads/1/3/4/3/134369173/4fa50bb8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://eaa62ee9-779c-4a2d-9f50-6c66b019a99c.filesusr.com/ugd/1cc777_14031e4d004c41f291b21c5e154293d7.pdf?index=true
    • http://wuwututosexatep.rf.gd/bifetelotedogoda.pdf
    • http://puliwoxijulu.rf.gd/what_is_the_meaning_of_rural_and_urban_areas.pdf
    • https://eb40363d-1d1f-4170-a897-f23f0f433116.filesusr.com/ugd/2a1429_975ca920c0a54d3d91f039085b1e8fd8.pdf?index=true
    • https://s3.amazonaws.com/dapekufoxiraku/does_speed_queen_make_a_ventless_dryer.pdf
    • https://ccd4a2e6-63e2-4dcb-a02e-1ae1253dabcc.filesusr.com/ugd/059ff1_8f0c6e15ae89405bb9a567b7f92c4fcb.pdf?index=true
    • http://liwetagosozel.onlinewebshop.net/zakigun.pdf
    • https://s3.amazonaws.com/zategafozasiru/67362610429.pdf
    • https://s3.amazonaws.com/mekonulegipero/what_is_reformed_systematic_theology.pdf
    • http://zoligagomuwe.onlinewebshop.net/12896648286.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_off0000e893.bin
ddd587c03fca28051e979607524845a6e01037ca921fd3ecee4c504459ad4950
pdf-font-stream PDF embedded font (sfnt) at offset 0xE893 5368 bytes
font_01_sfnt_off0000faa8.bin
550bb214fc445566081457b0744217699f7c9184f5e098fd5252ce2f1c201a83
pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA8 10580 bytes