Malicious PDF — malware analysis report

Static analysis result for SHA-256 c96be1cdcea70be4…

MALICIOUS

PDF

81.6 KB Created: 2021-03-06 12:12:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b7679e09bac9d0f96b4124f074dd4c70 SHA-1: 93d547131fea5331ba316d607d7134094957d137 SHA-256: c96be1cdcea70be4c9aea18c1c9132ca9c7ffe67a87eda72c99eee0aca7b2f00
96 Risk Score

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-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://soxebez.ru/123?utm_term=steve+jobs+quotes+sometimes+life PDF link annotation
    • http://lerob.info/4499893901q6ukf.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxinugokas/jgPgdif/masha_e_o_urso_kit_festa.pdfIn PDF document text
    • http://drenajkrasnodar.ru/zerubevoxotamesogefojk1kxs.pdfIn PDF document text
    • http://antonioita.fun/digital_marketing_jobs_nyc_entry_levelr36nl.pdfIn PDF document text
    • http://lnstagram-helps-contact.com/aashto_t_993fmpt.pdfIn PDF document text
    • https://cdn.sqhk.co/vugujebeku/gggRFjd/chilis_nutrition_keto.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/HK4hpgd/car_game_for_kids.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374175/normal_602fb27f28d20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408989/normal_601ee7db35eba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385230/normal_5fe08626c01ca.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zidosozawok/lacrosse_gummistvler_dame_strrelsesguide.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/introduction_to_math.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa939808-cca2-4b17-85dc-052b668f32ae/que_es_estado_de_derecho_en_guatemala.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/tom_clancys_ghost_recon_breakpoint_pc_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/042eea0c-eac1-4788-825f-49586496785c/is_game_of_thrones_book_series_finished.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/57271234784.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/82427676465.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/21119451175.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/nedinon.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_off0000f2ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2CE 4888 bytes
SHA-256: c098bb07f72ebbe34b7f0c72a8309fb68f7135003f25aac6064a340ba723ac36
font_01_sfnt_off00010391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10391 10948 bytes
SHA-256: 583cb07bedb5eddfd2d773e505d38634c561c58f6ceeec3f3f9286137c294acd
font_02_sfnt_off0001290f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1290F 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361