Malicious PDF — malware analysis report

Static analysis result for SHA-256 b099578c3e1a335d…

MALICIOUS

PDF

211.5 KB Created: 2021-03-18 04:40:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f75c7b967cb91de1983e49da89a47566 SHA-1: dbc1b322864312b61bdf9dab27c79a5e8234063d SHA-256: b099578c3e1a335da8a6358a25351404c6606d0be85285b4518715f4edfd7fbf
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 0.9465

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://maypoin.ru/strik?utm_term=pe+exam+california+requirements PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378167/normal_5fd2c9aeb4015.pdfIn PDF document text
    • http://kavizubi.iblogger.org/totidasagejowirovi.pdfIn PDF document text
    • https://muxavitegujun.weebly.com/uploads/1/3/1/6/131637584/4ef8f3811.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450502/normal_60063991590e2.pdfIn PDF document text
    • https://boletesolekab.weebly.com/uploads/1/3/4/2/134236379/6128734.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469103/normal_5feb3c90c9306.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393901/normal_60089c15050bc.pdfIn PDF document text
    • http://selozufuwadapuw.66ghz.com/58299844024.pdfIn PDF document text
    • http://papakofowomida.22web.org/w10m_bridge_rectifier.pdfIn PDF document text
    • https://kiseridebajesa.weebly.com/uploads/1/3/1/4/131408791/rogedivelofimab.pdfIn PDF document text
    • https://milubede.weebly.com/uploads/1/3/4/3/134349056/tijufoso.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376101/normal_600620169e143.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/figidireki/rhus_city_guide.pdfIn PDF document text
    • http://vejebuta.rf.gd/75230573501.pdfIn PDF document text
    • http://rawozenagi.epizy.com/92616940463.pdfIn PDF document text
    • https://s3.amazonaws.com/gekojulog/angels_and_airwaves_full_album_free.pdfIn PDF document text
    • http://lotawovuvowuk.rf.gd/46049748635.pdfIn PDF document text
    • http://gozajogef.rf.gd/14167178023.pdfIn PDF document text
    • http://rileponabamel.rf.gd/aneurisma_cerebral_tratamento.pdfIn PDF document text
    • http://wilurimidolajej.rf.gd/bipewulutidibugotaxofek.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002a018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A018 25036 bytes
SHA-256: 1b38c349d60418a381a33ba08b13b39d765a91e733c04783b41bcb45a5caf8c2
font_01_sfnt_off0002ee18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE18 5104 bytes
SHA-256: 4bb1e2f7d31067184dab932dbd6c4e826e89235f0404c65cf0d79be069dfa97b
font_02_sfnt_off0002ff61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF61 17904 bytes
SHA-256: 7e3e055bfc233a5ad3a63ec947d8276b74539f6bd6f9af3fcc0b7a6cb1428a5a
font_03_sfnt_off000330ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330CA 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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