Malicious PDF — malware analysis report

Static analysis result for SHA-256 6953498cb5fa14d6…

MALICIOUS

PDF

74.3 KB Created: 2021-03-19 19:28:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d8d87f2d30369c4fafa4434099926550 SHA-1: 178c43d4f5aa487513ed7db186a0213439c64466 SHA-256: 6953498cb5fa14d6b13442679e3ff0d5fa6c80933bc47fe905804b4c93a7e0ff
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 0.9997

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://botokaw.ru/wix?keyword=letter+from+birmingham+jail+packet+answer+key PDF link annotation
    • https://nitomono.weebly.com/uploads/1/3/1/4/131454496/9f35e37db66.pdfIn PDF document text
    • https://gitumakiwu.weebly.com/uploads/1/3/1/4/131437138/gijagosufobi-goxikoza-muvev.pdfIn PDF document text
    • https://vofirojaj.weebly.com/uploads/1/3/1/6/131637635/9258172.pdfIn PDF document text
    • https://cdn.sqhk.co/mozedizupi/nqhighb/69778560665.pdfIn PDF document text
    • https://xejinifinedi.weebly.com/uploads/1/3/5/3/135305438/8ead9e7d.pdfIn PDF document text
    • http://fekijijiz.iblogger.org/23961156885.pdfIn PDF document text
    • https://vewefididijos.weebly.com/uploads/1/3/4/5/134517371/vudinuwovaniwotu.pdfIn PDF document text
    • https://feveronibamuja.weebly.com/uploads/1/3/5/3/135300243/37517520.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/bt3gdje/counter_strike_2d_play_online.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nekaxikafixof.epizy.com/google_sheet_filter_view_hide_columns.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/irrevocable_trust_document_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0261cf6-b27e-46cf-9c81-c14329aac4a0/multivariate_statistical_regression_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/rosukofosimekifetozi.pdfIn PDF document text
    • http://jigezadoxari.epizy.com/jexunofonevedowuzeju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7eb72ee-f37a-4177-9e3f-c5b13acce54a/keluzezujafavuseva.pdfIn PDF document text
    • http://redubemupaluk.rf.gd/plant_ecology_schulze.pdfIn PDF document text
    • http://fisowafoz.epizy.com/12117781598.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/panthertown_valley_map.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/tileduvunololoxit.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/astounding_science_fiction_android_saga.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_off0000e504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE504 5844 bytes
SHA-256: a0b8f034467a24b0bd35109ed1e9801c966b13664e5b4293a362b0a58c296949
font_01_sfnt_off0000f8e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E2 10252 bytes
SHA-256: 7c2e2d26346288ddebee54d03e556bf12893a1c54270690266b06132d7501413

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