Malicious PDF — malware analysis report

Static analysis result for SHA-256 a684526764493974…

MALICIOUS

PDF

77.7 KB Created: 2021-03-17 07:17:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: e6522d598e3173cf5bee1796f84b060a SHA-1: 5227708b757b380c07c58a44d30058aa61080715 SHA-256: a684526764493974c32379598376a6f04f264ea8c34c415bc9eb96575e96f569
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL disguised as a search query for a service manual. This URL, https://midufefew.ru/wix?keyword=jura+impressa+f7+service+manual, is likely used to redirect the user to a malicious site or download a further payload. ClamAV detection as 'Pdf.Phishing.Trojan' and ML classification strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://midufefew.ru/wix?keyword=jura+impressa+f7+service+manual PDF link annotation
    • https://cdn.sqhk.co/puxezuxivas/ghjdHoa/mujetunejurasopaz.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/oxsjiih/padavonuruxipeweze.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/ggDznhe/candy_crush_saga_cheat_engine_2019.pdfIn PDF document text
    • http://goxamid.mypressonline.com/alcanos_alquenos_alquinos_ejercicios.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/gfjjhfG/71075222778.pdfIn PDF document text
    • http://minesaxofunawi.getenjoyment.net/77376804799.pdfIn PDF document text
    • https://cdn.sqhk.co/tadawatimi/EhczQ2L/infected_ingrown_hair_under_breast.pdfIn PDF document text
    • https://cdn.sqhk.co/xafemepino/gAjeiiy/57648939543.pdfIn PDF document text
    • https://cdn.sqhk.co/demarumiju/ihchfje/rojesejana.pdfIn PDF document text
    • https://cdn.sqhk.co/dosijowikul/aEridib/27586009153.pdfIn PDF document text
    • https://cdn.sqhk.co/govulasem/oBBgjNV/first_time_pregnancy_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wipibefab.onlinewebshop.net/23884833005.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6920747-073c-4449-b411-437bf1077aea/what_to_buy_for_boss_birthday.pdfIn PDF document text
    • http://vekemelegewimo.atwebpages.com/tipos_de_comunicacion_humana_verbal_y_no_verbal.pdfIn PDF document text
    • https://s3.amazonaws.com/wemofodi/tugomimuvotitunaxuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5c0c7b3-2912-4548-bddc-e2c41e9e21f7/joleduguwosomikekixikepan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa198994-0c84-41ff-b8de-1b3573a77518/65482982835.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3531aed3-9a58-4de0-9540-5bb1314bfd8c/how_much_to_build_an_indoor_soccer_field.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/waltzes_chopin.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/street_fighter_1_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c5d9864-dfaa-4aad-9fbd-30567cee21ec/how_to_assemble_a_karcher_k4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9886ec09-b3cc-4d31-9605-56029addc86b/which_gre_prep_course_is_best.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/art_attack_videos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de3195d6-267c-46a3-aa43-b46c8a1a2fa9/canon_eos_t5i_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/38285531616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/237b71bf-20be-49a8-aaae-4a29941d7aad/99749055296.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_off0000f282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF282 5292 bytes
SHA-256: cabcdaa1080b78d39f792d2633a227725e91d7cc3e603e4718b94302c1743409
font_01_sfnt_off0001047b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1047B 10836 bytes
SHA-256: 9eea7c6ef767e9c48171e753fa58efc5639ebe02ba4774bf61354cc64f1c0792

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