Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cec0fb9a8413003…

MALICIOUS

PDF

81.3 KB Created: 2021-02-15 03:31:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ce57557fd6876756ed7f2617e1df228 SHA-1: 59653ed39a1f181b70148c9b13fb2ddbaeae4786 SHA-256: 8cec0fb9a84130030c8e98a2e752090a516e9c493e211a121704ced8fdcce19c
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or phishing page. The document body, though heavily obfuscated, suggests a lure related to educational content to trick the user into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=fertile+crescent+map+activity
    • http://copyrightshelpscenters.com/gandii_baat_season_2_anveshi_jaing5ag8.pdf
    • http://bighome.space/869949654185k0dt.pdf
    • http://vovality.club/97599387970nc5tf.pdf
    • http://rawapob.22web.org/cohabitation_agreement_template_scotland.pdf
    • https://static.s123-cdn-static.com/uploads/4450634/normal_6000fac31c60c.pdf
    • https://static.s123-cdn-static.com/uploads/4368504/normal_5ff6be188c385.pdf
    • http://okclub.org/48304200420dlwhw.pdf
    • https://cdn-cms.f-static.net/uploads/4460677/normal_601a51cc99ea5.pdf
    • https://cdn.sqhk.co/panuwatosim/LIgdQvt/23215728781.pdf
    • https://cdn.sqhk.co/riragimi/heajeid/dragon_raja_all_trainee_chef_recipes.pdf
    • https://cdn.sqhk.co/wujugojuse/fPCgijf/vivikobuxovimemujuzi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gutumafik.epizy.com/mejozakamokupexudab.pdf
    • http://lapabogi.rf.gd/hexatech_vpn_apk.pdf
    • https://s3.amazonaws.com/farefasejikap/58420627938.pdf
    • https://s3.amazonaws.com/kevava/fubigod.pdf
    • https://s3.amazonaws.com/tokafanawa/rarerutarerigobogusiwodir.pdf
    • http://solepaf.epizy.com/34268781759.pdf
    • http://tufifexafepo.epizy.com/arduino_ide_windows_10_free.pdf
    • https://s3.amazonaws.com/serogajugomiji/64169414667.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_off00010417.bin
879ab12f257c36c4af6df09cbcee01f04640c727cf71311aa42a9b431c3a140e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10417 5196 bytes
font_01_sfnt_off000115bd.bin
aa6d20a55d2110ec7dd0a82571220eff30a18948ddedfef5fb3c6278c920e31a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115BD 10016 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.