Malicious PDF — malware analysis report

Static analysis result for SHA-256 182c5f33960eb798…

MALICIOUS

PDF

80.5 KB Created: 2021-03-18 23:59:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 62bf73de24a425fe6378a72d0badf4c9 SHA-1: b4b9989caa0d2877c143a6fc96112bea2a342991 SHA-256: 182c5f33960eb798f1288697a6c949d0ddb5cbcac6b60e8b6fa58c3b01227478
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit user interaction, potentially leading to further compromise.

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://druttle.ru/award?keyword=deficiencia+de+vitamina+b12+pediatria+pdf PDF link annotation
    • https://cdn.sqhk.co/jasojime/ii0Rgcy/gukafugon.pdfIn PDF document text
    • https://cdn.sqhk.co/modonasuje/J2Niehf/drop_linear_roberto_coin_earrings.pdfIn PDF document text
    • https://cdn.sqhk.co/palezubifo/i7uhfMs/fezigejuruwen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485705/normal_5fea03c69cdeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465705/normal_5ff15c468d94d.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/hfCZwja/zixaw.pdfIn PDF document text
    • https://cdn.sqhk.co/nafumozuwe/Nhfhaii/gexatunug.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/gghthbN/osha_safety_apps_for_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391340/normal_6047c17cb5497.pdfIn PDF document text
    • https://cdn.sqhk.co/leredupodeka/ibCicgj/lamaxan.pdfIn PDF document text
    • https://cdn.sqhk.co/kepilujofeje/MgiAcja/global_warming_solutions_act.pdfIn PDF document text
    • https://cdn.sqhk.co/kubarevopew/id5iinU/70897356029.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456699/normal_60224d226d2af.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489599/normal_5fe334c8b3f75.pdfIn PDF document text
    • https://cdn.sqhk.co/sexubozadifa/TDhdtes/97887107973.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490754/normal_5fe11f125a301.pdfIn PDF document text
    • https://cdn.sqhk.co/zokirafuka/cjcitgc/33239999717.pdfIn PDF document text
    • https://cdn.sqhk.co/samofetob/zgjjgyV/locomotion_line_dance_step_sheet.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/2337a407-9151-495d-b56a-ebb644271545/when_are_beats_pro_colors_coming_out.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba29bef0-56b1-40fd-85b7-063f269432b4/sex_and_the_city_series_watch_online_with_english_subtitles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a595d83-0d7e-4d95-8345-9d2cd9011ad9/la_bella_vita_salon_and_day_spa_palm_harbor_fl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b398884-2f6b-4ef6-9562-e7b5667c6ac4/rufonituviv.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_off0000f8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E5 5472 bytes
SHA-256: dc3b499ebf8cd9527126e93b3eaa971b59a481de8ee5686f1bf4540281b8791b
font_01_sfnt_off00010b85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B85 12396 bytes
SHA-256: 2a1ff3877f1d70ff4dadb4b3d1af7d38e8215b7fe1318f66654c2cb44fb22161

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