Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf32ac65e9fe68dd…

MALICIOUS

PDF

72.5 KB Created: 2021-02-18 08:51:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0005259bbcfbe3b06577861131769a20 SHA-1: 63b160e84c23bb78d31f5aac469517daf4068516 SHA-256: bf32ac65e9fe68dd351680d235207af634bd11dde3a707afb1398d2b66e490d5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jottigo.ru/wix?keyword=lacrosse+technology+atomic+clock+manual+512-811 PDF link annotation
    • http://luzibis.iblogger.org/sadlier_vocabulary_workshop_level_b_answers_unit_15.pdfIn PDF document text
    • http://kafemefiturokuk.22web.org/sexalipuporadinoxelu.pdfIn PDF document text
    • https://cdn.sqhk.co/kuburarimoku/hgfthd9/tanglewood_fasting_netflix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470545/normal_600b36527889b.pdfIn PDF document text
    • https://fazajamol.weebly.com/uploads/1/3/2/7/132740605/nezaxolejuxunuxur.pdfIn PDF document text
    • https://cdn.sqhk.co/mekekomubun/7Wigijy/wadojatur.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuzigup/hdg3rhi/temple_run_2_hack_apk_download_free.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/phagfwn/rank_makers_live_2020_schedule.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/uLpqBie/stop_them_all_game_download_for_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452587/normal_5fc706cff1246.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415950/normal_5fd81cc79a5f3.pdfIn PDF document text
    • https://ragixadimeruwu.weebly.com/uploads/1/3/4/8/134897014/498706.pdfIn PDF document text
    • https://zudimawavisutet.weebly.com/uploads/1/3/1/6/131606198/7cfb66a53bd.pdfIn PDF document text
    • https://cdn.sqhk.co/kepigofunet/zhijd2s/coda_meaning_japanese.pdfIn PDF document text
    • https://lirurarupo.weebly.com/uploads/1/3/4/7/134770738/812861.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pozufubaju.rf.gd/6411305997.pdfIn PDF document text
    • http://vevojadiren.epizy.com/bindiya_bole_kya_bole_tinyjuke.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_off0000dc8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC8C 5852 bytes
SHA-256: e7493bf330d943f601cb31e24eee508c6e66b9ca601876a27aeabd93d59e1c06
font_01_sfnt_off0000f06c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06C 10664 bytes
SHA-256: 5fa6372d7986a2a88614b87649d5e8b12e2ee27ab9148a8c87e39eca030212ac

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