Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2a0d552328cf40a…

MALICIOUS

PDF

68.0 KB Created: 2021-03-08 09:47:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 111398b75a3977141f54444f2abc5812 SHA-1: d620b8fd53f7a28863e40080c061d84cc0e36d8c SHA-256: a2a0d552328cf40a8e5b92122d2f3de18ad5986ce2d1bca64c90dc0c18148eaf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jottigo.ru/wix?keyword=math+about+me+worksheet+5th+grade PDF link annotation
    • http://rajukilodagoje.mygamesonline.org/lg_lfx28968st_water_filter.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450747/normal_6021d05c58753.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387562/normal_5fda72450edee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367951/normal_600eacdb518f0.pdfIn PDF document text
    • https://cdn.sqhk.co/jolodovi/fjjhg0z/28921831041.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471710/normal_600069f691acb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393035/normal_602b63303d604.pdfIn PDF document text
    • http://scarcebook.com/launch_trampoline_park_hours_and_pricesry6s2.pdfIn PDF document text
    • http://bobujopolodusol.mygamesonline.org/netgear_router_wndr3300_manual.pdfIn PDF document text
    • http://afracheat1.xyz/19265649436nxmp6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408004/normal_60005d2ff0846.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/USnTVQO/exonerate_synonym_exempt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422168/normal_6033532a6899f.pdfIn PDF document text
    • https://cdn.sqhk.co/xubewarow/d7gi4SJ/running_horse_drawing_stencil.pdfIn PDF document text
    • http://frukt.fun/rolapejerwwabs.pdfIn PDF document text
    • http://sepukolobu.sportsontheweb.net/que_es_un_lider_populista.pdfIn PDF document text
    • https://cdn.sqhk.co/burajugi/DGggiia/97634636051.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480585/normal_5fdf644616d8d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tibamupebunod.atwebpages.com/misux.pdfIn PDF document text
    • http://belibivizonojo.myartsonline.com/dikubuguwonumitaxom.pdfIn PDF document text
    • https://8c1dc56a-a131-4b43-acff-3635b9115217.filesusr.com/ugd/90423f_cb969eeca9fa4e49ac48d46b0d7585ce.pdf?index=trueIn PDF document text
    • https://201a0bc5-0eb3-4135-8969-828875a6b07d.filesusr.com/ugd/607883_c497dc64cc0f47728098a316aa26646a.pdf?index=trueIn PDF document text
    • https://ddf64d59-5240-4154-9987-17dfc28e22c7.filesusr.com/ugd/cec570_917fcc93bd1e4f13ae65e4e9e96b84e1.pdf?index=trueIn PDF document text
    • https://46a1ac71-481d-4a85-b709-d40f3a189542.filesusr.com/ugd/143c98_0b5861b52ae24b2da47861492f167642.pdf?index=trueIn PDF document text
    • https://f3874c2d-c116-49c2-b7b6-9300dc8fc43e.filesusr.com/ugd/b11f6d_e251164c99fc4563add54358d7ef67bb.pdf?index=trueIn 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_off0000cdac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDAC 5632 bytes
SHA-256: fa2ac6b39727978806ed3e82f2249ecdd1ec7f457d244ad4b73c3f6ce48c282c
font_01_sfnt_off0000e0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C3 9840 bytes
SHA-256: 3da7075b233debdb2d94adad06bac752f803b6fdc6922c55a5ece55d0be2a281

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