Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f1dfc9aac77b37…

MALICIOUS

PDF

70.8 KB Created: 2021-03-11 04:21:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 966d3f033757a77f643f0659973cf83e SHA-1: 95140e286c40f2a50bfce837dcba1b4733ec3050 SHA-256: e1f1dfc9aac77b37b367035ac37920eb193e994d3375a00fc1060d4693bad663
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xezojetit.ru/wix?keyword=lester+levenson+youtube PDF link annotation
    • https://cdn.sqhk.co/lesasafo/OgOijjf/alien_monkey_child_painting.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419001/normal_603540338164f.pdfIn PDF document text
    • https://cdn.sqhk.co/lebuxexofe/xSjjsje/sinigiwomesutamutu.pdfIn PDF document text
    • https://cdn.sqhk.co/xipitufekaru/0jiCa8M/video_download_for_tiktok_pro_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/senuziker/0jf7icG/24833965153.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489054/normal_5fe9d849909c8.pdfIn PDF document text
    • https://cdn.sqhk.co/kigimole/4hiFhhj/refuvapelulowajupujidaru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379369/normal_5ffb406ea8e3e.pdfIn PDF document text
    • https://cdn.sqhk.co/keliziniw/iwWghAl/fog_of_war_the_battle_for_cerberus_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/wafexumu/z4chfhh/clown_neighbor_granny_escape.pdfIn PDF document text
    • https://cdn.sqhk.co/xumesapaxoku/hdQLZtx/easy_bundt_cake_recipes_with_cake_mix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383680/normal_603bb0d2563a3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b1b1ed1d-a631-407f-b8a0-2f609481a9c2.filesusr.com/ugd/3e5895_8150d35dcc9c4dbc8d09ce35f9de4fbb.pdf?index=trueIn PDF document text
    • https://c2267750-1f6d-4c2f-944a-eb302c7f07d7.filesusr.com/ugd/93971e_047840a948d14958841b852dc33611aa.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sezebepit/cartoon_character_maker_apk.pdfIn PDF document text
    • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_4e423bfa95ab4835855f6a6bc1b59001.pdf?index=trueIn PDF document text
    • https://b7eb3c74-9f10-4efd-a612-efb7ea03662f.filesusr.com/ugd/7198c1_57f6df8e6f5945eba695d39dd2e452e3.pdf?index=trueIn PDF document text
    • https://fa07519e-5664-4b29-af9c-2c502e53c954.filesusr.com/ugd/cbe325_37247cef227c41ce84be5d23638480b2.pdf?index=trueIn PDF document text
    • https://95a57b4d-a24c-4412-bd87-88f4f885d252.filesusr.com/ugd/011e4b_da1b8a14e81d40f7801f73f8713b36b7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tenunud/61704252797.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_off0000da3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA3A 4712 bytes
SHA-256: ee32ebb20b9892e1da47c1901081cd953322298d08f77d4e8ab7fd3b13622a27
font_01_sfnt_off0000ea5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA5F 10592 bytes
SHA-256: 07ef83830a796383dac3c27b7ac06e5a5684a6d31a2ead24daf84c95af365929