Malicious PDF — malware analysis report

Static analysis result for SHA-256 c99a98849eef0151…

MALICIOUS

PDF

68.8 KB Created: 2021-01-21 09:00:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 892a8b42cf6982dffe7106c757153d5b SHA-1: 93d395d2b975df932bf35bdb486e04816f685cb9 SHA-256: c99a98849eef015103f6813892e548f1c43b806477d85fa67195a5f6798c0992
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/123?utm_term=army+of+ages+unblocked+hacked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384037/normal_5f97cb50c1fc0.pdfIn PDF document text
    • https://cdn.sqhk.co/jagapifa/3Gidhei/ho_slot_car_sets_ebay.pdfIn PDF document text
    • https://cdn.sqhk.co/pajerelo/jac64hb/24270918982.pdfIn PDF document text
    • https://cdn.sqhk.co/roretuduva/jigcKcY/soccer_backflip_penalty_kick.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412894/normal_5fad698877a91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379974/normal_5f9b6f882e562.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413563/normal_5ff5a886bcaad.pdfIn PDF document text
    • https://cdn.sqhk.co/nezerozara/qgePlZy/minecraft_2d_games_for_android.pdfIn PDF document text
    • https://samazixudoreput.weebly.com/uploads/1/3/2/6/132681586/d3b1ccea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405638/normal_5fe1b1117cb01.pdfIn PDF document text
    • https://cdn.sqhk.co/kenipafitu/ih1e9nz/pafisawuwofuwo.pdfIn PDF document text
    • https://taxurazuzar.weebly.com/uploads/1/3/4/0/134042721/06e23.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/figugipopar/fm_transmitter_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/69169956351.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/92743132843.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/hisd_tads_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB6C 5864 bytes
SHA-256: 2519a32e0e0d4c25a925fd3720ce87fc32a6c1221dd62d05e0329eaf08f2d4a1
font_01_sfnt_off0000cf84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF84 5728 bytes
SHA-256: 635db94cbc15e331a0d364fefc44ea735d61fbb4937f9cf2a22f195547155705
font_02_sfnt_off0000e2e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E6 10352 bytes
SHA-256: c026023bb631f4d5908002e200b8fd4d5f767bf35345dda4e8c0b8bf170ecc08

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