Malicious PDF — malware analysis report

Static analysis result for SHA-256 41f179bf71a5a732…

MALICIOUS

PDF

78.6 KB Created: 2021-05-04 10:36:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9b3bd67f288e3e55d3c0a9e6e6b7e816 SHA-1: 10b678566f1c499bc739c670e2f9dc7aea31c7ac SHA-256: 41f179bf71a5a7323833d6f82a3991414442c1c4ae1bed6c82af5dfe774ba955
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9992

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://maypoin.ru/strik?utm_term=jersey+mike%2527s+sub+in+a+tub+keto PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454543/normal_600a1cdc96093.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415767/normal_606351d57f5a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405644/normal_602802368a3ba.pdfIn PDF document text
    • http://lovechat24.club/t_mobile_visual_voicemail_app_iphone33d5l.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486356/normal_6013a5180a91b.pdfIn PDF document text
    • http://air-calm2.club/deputukezumujonixugelukls4m.pdfIn PDF document text
    • http://de-bewertung-id2842384.icu/7113954377qiakj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376598/normal_6037422c3ad81.pdfIn PDF document text
    • http://sosed.market/crossword_clue_solver_thesaurus5avan.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bagokiko/wuzazemufunalejin.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/autocad_2016_free_download_with_crack_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/1302695189.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/lowapaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21684309-e9f6-4521-a6e2-5b85a7f85ca9/20600385190.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19ba476f-dd22-4bad-940f-22b4099e1042/66749633746.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/ccleaner_pro_android_code.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/prophylaxis_antibiotics_surgery_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/96232092028.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/mad_school_address_karachi.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/78052762705.pdfIn PDF document text
    • https://s3.amazonaws.com/kobivimelelo/89196123424.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/letterhead_design_templates_psd_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/convert_cal_g_to_j_mol.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF308 5128 bytes
SHA-256: 193a0c2f69821a7f1b953bdf270bd692c9c176e846a5f3ae38737875b0e7f943
font_01_sfnt_off00010472.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10472 11460 bytes
SHA-256: c86f75751b39095aa84fb0ad79eff5895e909fe2888624013248cda1a3adfb1f

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