Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d41266fb2e711ae…

MALICIOUS

PDF

79.4 KB Created: 2021-03-22 04:36:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 7915ca85c164169fb605cafddb40a9c6 SHA-1: 383661a62d621156b12e113a4459edbcfe093bf1 SHA-256: 1d41266fb2e711aeac5383d54b84bb8a2291b90bfc6cd0d0bc72df2e3e84fdd0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a site offering a "clash of clans mod apk hack". This strongly suggests a phishing or social engineering attack aimed at tricking users into downloading potentially malicious software. The ML classifier and ClamAV detection further corroborate the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/wix?keyword=clash+of+clans+mod+apk+hack PDF link annotation
    • http://kogutojoveso.mywebcommunity.org/app_to_download_free_books.pdfIn PDF document text
    • http://presente-top.store/magic_chef_4.5_cu._ft._mini_fridge_with_true_freezer_in_stainless_lookyfaek.pdfIn PDF document text
    • http://shopeuro.pro/viking_bay_treasure_chest_ark5yc3y.pdfIn PDF document text
    • http://dutov.org/hi_point_c9_9mm_pistol_with_speed_loader_review5e3kf.pdfIn PDF document text
    • http://lapitubemexidi.mywebcommunity.org/1434400566.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/tigewibejageju/chuukyuu_kara_manabu_nihongo_workbook_answers.pdfIn PDF document text
    • https://45f61934-b4a1-4335-a9e3-e142d9465b5b.filesusr.com/ugd/0dd040_6d62eead9d674124b603361352e6fac1.pdf?index=trueIn PDF document text
    • http://resisojopemolo.epizy.com/bekata.pdfIn PDF document text
    • https://9f9bd9fa-00fe-4673-b34e-9a629881f524.filesusr.com/ugd/09273f_26e105d07972451c9b19a04721ffd093.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/chikatilo_karu_chikatilo_song.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/sijixexesu.pdfIn PDF document text
    • http://siwemoxoxawevuv.atwebpages.com/boy_scouts_store_dallas.pdfIn PDF document text
    • http://dudasuz.epizy.com/gpsmap_60csx_maps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47dc1ce7-91b3-4a5f-a0be-2f25062276ca/fender_hot_rod_deluxe_180_watt_tube_amp.pdfIn PDF document text
    • https://0f926834-650c-4d5a-b53c-ad60ae412ccc.filesusr.com/ugd/6a44d8_18ec5c0dd6904d06be46baaa3a6a526b.pdf?index=trueIn PDF document text
    • https://667abc8f-92ca-45d9-bc9d-789c80a68858.filesusr.com/ugd/dcd78f_85914c9cb71a4210816ba25d3aa1abae.pdf?index=trueIn PDF document text
    • http://mebuwakubir.rf.gd/cobra_walkie_talkies_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0c6a6eb-73bc-463d-8cd0-0ea94e9e1169/nipogadinigetoxazebel.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/20937867998.pdfIn PDF document text
    • https://86a9da1b-0b57-4b35-a77a-523886b904cd.filesusr.com/ugd/0d9a50_ff5916215d79454fbcd9aa1f70fd1f93.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/de366b19-ac54-430f-8491-94b75dbe7e8b/14723559021.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_off0000eeb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB5 5268 bytes
SHA-256: 01e22e6af944a9059d50e3008c36843abc1c5d8f272438b0f56eac6c31f287e2
font_01_sfnt_off0001007c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007C 14648 bytes
SHA-256: b115fc6fa8bcc5e02615fee115ee6548fefdd67fcf7b686e1019bc7449554de9

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