Malicious PDF — malware analysis report

Static analysis result for SHA-256 6632892ccdb8bd44…

MALICIOUS

PDF

300.5 KB Created: 2021-03-18 02:18:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 118b0a6ea83e74df5f6666356ce06664 SHA-1: 271a99ae7238bdf1efe2df7f0a1091ee3451d042 SHA-256: 6632892ccdb8bd4424762228457363e0f3f0ac7b6ba2d0d547d82f468f24e9e0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious domain, disguised as a search result for a specific book. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9464

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://gimoguvi.ru/award?keyword=henri+bergson+laughter+pdf PDF link annotation
    • http://marketitaly.info/why_is_hajj_so_important8dy49.pdfIn PDF document text
    • https://jolosusopafo.weebly.com/uploads/1/3/4/0/134097145/6807001.pdfIn PDF document text
    • http://trelon.fun/best_medicinal_chemistry_books_for_pharmacypoh69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380083/normal_60481bd50cb5a.pdfIn PDF document text
    • http://tiwilofojifig.sportsontheweb.net/realism_and_anti_realism.pdfIn PDF document text
    • http://psylath.com/what_is_strategic_planning_model7f7rt.pdfIn PDF document text
    • https://wefigoga.weebly.com/uploads/1/3/4/0/134041661/lawalototato_nezowo_xoruwa.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/ballast_water_management_plan.pdfIn PDF document text
    • http://epipog.com/58826165678cxitg.pdfIn PDF document text
    • http://drive4mclaneaustell.com/43529480905vi32e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390681/normal_5ff0d272a4154.pdfIn PDF document text
    • https://rakulemiz.weebly.com/uploads/1/3/2/6/132682689/tawizosuma.pdfIn PDF document text
    • https://zokeperivixif.weebly.com/uploads/1/3/4/3/134307771/nizimexobonuwifi.pdfIn PDF document text
    • https://bomejafir.weebly.com/uploads/1/3/4/7/134725936/wusadilibew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481518/normal_5fd2d1ef5cfd9.pdfIn PDF document text
    • http://gegebafebofad.scienceontheweb.net/catan_cities_and_knights_rules.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389599/normal_6018beaeb4cda.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sasufufa/commutative_associative_and_distributive_laws.pdfIn PDF document text
    • https://ac3db616-04cb-40f1-8357-c67041f5e20c.filesusr.com/ugd/eda9ba_9a48269ef23941528d9942ec44415918.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/zenupafimidolisidifom.pdfIn PDF document text
    • https://50bf384a-eeac-4f26-a262-e2ba1a5e00ba.filesusr.com/ugd/17159d_903a182195ac49898e9f590b3ccc0189.pdf?index=trueIn PDF document text
    • https://d1159ab4-cbf5-42eb-897b-83a5e94cd7da.filesusr.com/ugd/536122_57d1a6229b5d4384845e1575b622bbc2.pdf?index=trueIn PDF document text
    • https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_f1b8b443233c482aa7e157b54e4fe9f6.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xefejevife/15725617778.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_off0004672b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4672B 5404 bytes
SHA-256: 8f0ec1bf8bdcb0fcb36dadf61cbc76568c6693d0de4f1f7b9572d8b21c08c924
font_01_sfnt_off00047980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47980 12048 bytes
SHA-256: 273ede7c71fcae7edc5c00cf101c2356de9808300d6da51f7bf56cf2dfa790d6

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