Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a25b6a0a6ff2d3…

MALICIOUS

PDF

72.5 KB Created: 2021-02-16 22:45:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2c2fa9b4254c249f7615a05222c71b7c SHA-1: e6396e2977ffc0c4d623451e21cfb25958132b94 SHA-256: 47a25b6a0a6ff2d3e260f1510d574fa3279537f873bd9e04035702b33c48bb90
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/wix?keyword=mcclave+high+school+football PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4428043/normal_5ff182bdcf517.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403565/normal_5ff77a48d8874.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485578/normal_6017f72174efe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494140/normal_5ff4d0216f9a6.pdfIn PDF document text
    • http://jiwujut.iblogger.org/87252155109.pdfIn PDF document text
    • http://pushbiz.fun/64978606716dj3iu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417216/normal_601caed6b39dc.pdfIn PDF document text
    • http://newberginvestmentproperty.com/nojimizarark3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384039/normal_601783f78c041.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pujusojup.epizy.com/38982135796.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/antariksham_movie_jio_rockers.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/colostomy_dietary_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/checkpoint_endpoint_security_vpn_client_linux.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/27533625628.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/yorke_peninsula_tourist_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/5126107751.pdfIn PDF document text
    • http://jilabof.epizy.com/xekuwudekavutipetazajis.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/91986770041.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/kuwaxigubot.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA2 5252 bytes
SHA-256: 8f42b57e5748b9e61058e76431dd8105be475bde2fa74888717e694cf4184300
font_01_sfnt_off0000f19e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19E 10276 bytes
SHA-256: e2470604f9f86cf30501778f0548d2f363d41e241a0bbea7a82589c01316c07b

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