Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee6a9afe330a54b…

MALICIOUS

PDF

92.7 KB Created: 2021-03-25 06:51:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 9d49e483a7293aa9a921c4f8dff72789 SHA-1: 99cb152adffd04dabc94e020e782a85340289df9 SHA-256: aee6a9afe330a54b9282bf694f32402c30db6150f4dd411d345d97b602c50346
96 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. No scripts were extracted, but the presence of external URIs suggests an attempt to download or redirect to a malicious payload.

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://seumenha.ru/award?keyword=cisco+2960+plus+datasheet+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475562/normal_602e0a5acbb2e.pdfIn PDF document text
    • http://show-visitor.xyz/58580542847xj2xz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382638/normal_60062bb3e8820.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376610/normal_6008cea2abdf7.pdfIn PDF document text
    • http://samyog.ru/weeping_willow_tree_pruning_guidetupwq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415937/normal_605860193fb51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411937/normal_605249c6470ad.pdfIn PDF document text
    • http://myfirstsite.xyz/what_to_do_if_leaf_blower_wont_startuga9o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500450/normal_602e5ecd49ebf.pdfIn PDF document text
    • http://about-igsupport.com/josidedufesosapowunidewamtguzn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452395/normal_5ffbdf43788d9.pdfIn PDF document text
    • http://espaceabonnes.com/the_other_side_of_paradise_glass_animals_ukulele_chordsjycc2.pdfIn PDF document text
    • http://mgacessoria.online/14455899368a5m8o.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/tufitijinexu/85690159183.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/which_is_better_megaboom_3_or_megablast.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/96753381515.pdfIn PDF document text
    • https://s3.amazonaws.com/dosipive/the_vampire_diaries_season_8_episode_11_reaction.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/blender_cycles_encyclopedia.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/culture_wheel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/cherry_pie_apk.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_off0001298b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1298B 5636 bytes
SHA-256: 07574828b3aff542fed6f559fa21370b655863e4fa17953e9058125f0421f39a
font_01_sfnt_off00013caf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CAF 12144 bytes
SHA-256: 6a4e5f277d21b58ffae43c8e4046355206a8c96a9a653d800f60ee249eb735af

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