Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e082cf71f42219c…

MALICIOUS

PDF

72.4 KB Created: 2021-02-13 02:03:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3a6dd8b2493ef3f045d5225b17119da4 SHA-1: 4e326c160c7f304e4d1633ed38d61cb84d021c75 SHA-256: 9e082cf71f42219c0369332e57fe5d47aaf09f3daa1a040a2ad47cbb6eb227ea
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/aws?utm_term=image+guided+radiotherapy+ppt PDF link annotation
    • https://cdn.sqhk.co/leredupodeka/dzIizjg/death_invasion_survival_game_download_uptodown.pdfIn PDF document text
    • https://zodovamerevi.weebly.com/uploads/1/3/4/3/134316438/pijik.pdfIn PDF document text
    • https://cdn.sqhk.co/kupawusel/ibRtm61/espn_nfl_power_rankings_2021.pdfIn PDF document text
    • https://cdn.sqhk.co/kosozezoxuxe/yjbhejh/53650257678.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarimeg/ahh9hj2/audio_pro_addon_t14_specs.pdfIn PDF document text
    • https://cdn.sqhk.co/fazituku/hgyiiNr/71438287165.pdfIn PDF document text
    • https://cdn.sqhk.co/sagitusat/iv9iaAu/54597248682.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405443/normal_5fdbc943a65e6.pdfIn PDF document text
    • https://zorutamazu.weebly.com/uploads/1/3/4/0/134096431/buvimudekesegam_xebefoponemom_sebajufokub.pdfIn PDF document text
    • https://cdn.sqhk.co/wogokodu/Jjikohc/ritetumawufawogaliv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465006/normal_5ff802b8b04d6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wegatanubuguze.rf.gd/closed_cell_flotation_foam_sheets.pdfIn PDF document text
    • http://damedosa.rf.gd/zepipikuberigabawozobux.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/22571959742.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/84442837200.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_off0000daf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF5 5204 bytes
SHA-256: 8c9fbea01fb9565459dc2bb58b6cf3122c31c101ce55a28bcca942384167357f
font_01_sfnt_off0000ec7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC7E 11400 bytes
SHA-256: e1218de5772235fc8dd438a6349b16d7ae5fa80078eb4f3aaf20b18485443af7