Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd5d6d9b6c3dac76…

MALICIOUS

PDF

82.4 KB Created: 2021-03-15 10:07:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 7e963433e60cd3869e79a5a52d0f0728 SHA-1: 94b1b74614481f8bd841cd93cbe96b4c1f164446 SHA-256: dd5d6d9b6c3dac7695bd429a12d6e23c805410586b38eda7e5e77dabca9f55d0
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. An external URI pointing to 'botokaw.ru' was extracted, suggesting a phishing or credential harvesting attempt. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, consistent with generated malicious documents.

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://botokaw.ru/wix?keyword=while+guthix+sleeps+guide+rs3 PDF link annotation
    • https://cdn.sqhk.co/dejuxafe/1CEhbbb/iron_man_2_game.pdfIn PDF document text
    • http://lorakuze.sportsontheweb.net/newadorupagikipuvilabagew.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/jbjeSAW/tap_training_osu_maps_for_beginners.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/jja24gh/xitefenozizuvugiw.pdfIn PDF document text
    • http://zisuroto.mygamesonline.org/how_much_do_emergency_room_doctors_make_in_california.pdfIn PDF document text
    • https://cdn.sqhk.co/gerukoso/dxgfrAb/vurojogi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499995/normal_5fdda0a4187e5.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxafopagad/9LjjgcD/93574137737.pdfIn PDF document text
    • https://cdn.sqhk.co/ruperodu/aiezicC/kuvufivuvupikuduborepa.pdfIn PDF document text
    • https://cdn.sqhk.co/reposivekow/fghhajf/yandex_music_er_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368481/normal_5ff0730842ea5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471256/normal_602b0f9777a0e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/08d1d233-84fb-4b6c-95ce-0c581b09053c/fuxir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d8a6ba5-ad4e-45f3-88bc-744c257e9241/18945429907.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f6134f1-5ba6-4ac0-b865-6aa5b91d3c19/ge_hydrowave_washer_clean_drain_pump.pdfIn PDF document text
    • http://lobopekogolo.onlinewebshop.net/relion_blood_pressure_monitor_bp200w_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec3c9a10-0202-4066-b629-e4a560215258/zimurasinebusuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b178489-73d9-47f1-a048-89999122d093/ronco_showtime_rotisserie_5000_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f095685-fde7-4695-95cb-48fe47ddf79b/55085901368.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5093c32b-9f12-48bb-be8c-3ca86a211a6d/sony_bdp-s3100_amazon_instant_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0fc3126-1414-41da-9b36-7522cca47283/lizikareduje.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_off000106b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106B1 5256 bytes
SHA-256: 5fbd7c11c98654502a1e5a345f4e6ff18d176f031d4c4d0ac3021f27c918a763
font_01_sfnt_off000118aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118AA 10432 bytes
SHA-256: 85a7b36ba0bdf4b466e73ec157e959fe265d43d64f1998c10226b231c3a3a0d4

Open this report in the interactive analyzer, or submit your own file for analysis.