Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2233182a10eeec7…

MALICIOUS

PDF

109.1 KB Created: 2021-04-04 01:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8bf38a83c6af8ad29080b15ae705e698 SHA-1: b001d9ab9e45f6fc96c322785b06ac1f0df48422 SHA-256: a2233182a10eeec7095dc4558d8f3c2550a7f7369edd0793758d0e05b6350ab8
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/award?keyword=breaking+the+habit+of+being+yourself+pdf+joe+dispenza PDF link annotation
    • https://cdn.sqhk.co/zejejofe/icjfjfS/jeboj.pdfIn PDF document text
    • https://cdn.sqhk.co/torazanopuni/hbhdufR/baskin_robbins_ice_cream_delivery_malaysia.pdfIn PDF document text
    • https://cdn.sqhk.co/jumuxabag/ifjiyII/albumina_humana_20_bula.pdfIn PDF document text
    • https://cdn.sqhk.co/sofetarunox/sifjeia/zipoxejakerosu.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/OlhgDii/32992635160.pdfIn PDF document text
    • http://vijofudevadotar.mywebcommunity.org/adverse_childhood_experiences_study.pdfIn PDF document text
    • http://ufenmac.com/12611528463evpcn.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/ng_book_11.pdfIn PDF document text
    • http://bodaweziwov.mypressonline.com/daily_life_of_an_ancient_egyptian_pharaoh.pdfIn PDF document text
    • https://cdn.sqhk.co/tevunufoba/cZdlgel/40620444185.pdfIn PDF document text
    • https://cdn.sqhk.co/rowazazapa/mWzA6ZC/escape_room_app_answers_level_113.pdfIn PDF document text
    • https://cdn.sqhk.co/mojazejo/Zgiiehh/wederuzekir.pdfIn PDF document text
    • http://fonudesuwobulud.mygamesonline.org/mefiwojuzasemojogip.pdfIn PDF document text
    • http://kanaxade.mygamesonline.org/sosiminobukikubavos.pdfIn PDF document text
    • http://pimifawimonidij.mywebcommunity.org/fepajuk.pdfIn PDF document text
    • http://zuberisuxivaki.scienceontheweb.net/berg_balance_scale_interpretation.pdfIn PDF document text
    • http://apsdd54gfv.xyz/lomizolargi7k.pdfIn PDF document text
    • http://kewokuxumuzig.medianewsonline.com/allen_head_bolt_dimensions.pdfIn PDF document text
    • https://cdn.sqhk.co/visesefider/ngh6Nhb/32690629855.pdfIn PDF document text
    • https://cdn.sqhk.co/wadusazilox/8gfCjd0/kakaz.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/2df3c0de-e3ac-42f5-81a0-f4712bf6698c/karcher_high_pressure_cleaner_troubleshooting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d601a3a2-c71c-4273-9546-d6b134b5684e/what_is_a_good_noise_reduction_coefficient.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa15f734-8ab4-4488-a12a-8c2de47f781e/5446579381.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14481403-1b0c-49f2-9f92-824d3471a6b8/what_does_a_supermarket_plastic_bag_weigh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1f5ded7-aa1a-40b3-967c-9c4cf98b2cf6/is_general_physics_1_hard.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_off00016b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16B31 5784 bytes
SHA-256: c0bfa2286005e30f61f05964cc1565fbb24789c541906581b8cf27e0c966b7c8
font_01_sfnt_off00017ef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EF3 11628 bytes
SHA-256: 5943a8181a58033b77d57fd773ca55624abbf45a5a41f60ddba0371ed1110bdb

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