Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db9cd96889bd5a8…

MALICIOUS

PDF

69.2 KB Created: 2021-03-06 18:44:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a343e588b8d7ef6f5318af206a4f01b6 SHA-1: 33bed1beb7d2ab0edb064d8c51e4677c17019e7f SHA-256: 6db9cd96889bd5a865e956c55b640890b61bff80bd5c432ffeab1a255e7ec444
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/award?keyword=netgear+fvs318g+firmware In PDF document text
    • https://static.s123-cdn-static.com/uploads/4448330/normal_5feaff3e9f851.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447877/normal_6033660ad33c7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418781/normal_5ff3f8b25f52e.pdfIn PDF document text
    • https://zuxizakubapepo.weebly.com/uploads/1/3/4/3/134317428/sewasesovowu-tirepibulizep-xujopisozov-giwup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407313/normal_60246133bd016.pdfIn PDF document text
    • https://zokejiwiperasuk.weebly.com/uploads/1/3/4/6/134668939/1581782.pdfIn PDF document text
    • http://zisezamerares.mygamesonline.org/bowofavizisokeles.pdfIn PDF document text
    • https://zozufawagizawag.weebly.com/uploads/1/3/4/4/134454621/e071c7ce68a.pdfIn PDF document text
    • https://jazawimap.weebly.com/uploads/1/3/5/3/135346256/4436003.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495246/normal_5fe66ad95c5b0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379616/normal_5febfe6a7e918.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4506200/normal_602d6908185e9.pdfIn PDF document text
    • https://vogavova.weebly.com/uploads/1/3/1/6/131606390/dimevonom_zonezedebeja_bujesizavaw.pdfIn PDF document text
    • https://murasujudadalox.weebly.com/uploads/1/3/5/3/135338307/3342542.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365613/normal_603061bc74da2.pdfIn PDF document text
    • https://mipijanifubu.weebly.com/uploads/1/3/0/7/130739658/xojef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374847/normal_5feb5c29d56ec.pdfIn PDF document text
    • http://saxobupazes.sportsontheweb.net/how_many_hours_do_scag_mowers_last.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/4de30040-50ee-4151-8f4e-f0e9036fa141/d_link_dcs_932l_hard_reset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6b8f0ea-91af-4e5e-81e5-d52bdffe0a62/tokolebomatusuk.pdfIn PDF document text
    • http://dowuvoduwitovos.atwebpages.com/at_lp60_belt_setup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e25a887e-d879-4b2d-8313-f787bb533091/nuworemota.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_off0000cf3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF3C 5584 bytes
SHA-256: 8e507b7f988afa8212fb8a2af4f2d8748608efc6a797bb706b6fe93b03d9e1f8
font_01_sfnt_off0000e251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE251 11324 bytes
SHA-256: 93e5dd2ee117b391129b6fc6496e565af9ca2c5ecbe20c5b87528aee169862c4