Malicious PDF — malware analysis report

Static analysis result for SHA-256 10be206e3bdd3ac7…

MALICIOUS

PDF

73.2 KB Created: 2021-02-26 03:37:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: abf75914110e5fb52d5247a9ca5b3271 SHA-1: 14db9d563b8fe3c6e4b4df5c7cad561b09e35814 SHA-256: 10be206e3bdd3ac78c562fcccce9887ea1e32c50ca24e20b7291efd944a4dd52
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://druttle.ru/wix?keyword=parallel+and+perpendicular+lines+worksheet+pdf+grade+4 PDF link annotation
    • https://telabafulux.weebly.com/uploads/1/3/0/9/130969700/2484222.pdfIn PDF document text
    • https://cdn.sqhk.co/wugolekufo/Fgdc9id/97157571995.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/DjiHegg/petroleum_engineering_associate_degree_jobs.pdfIn PDF document text
    • https://cdn.sqhk.co/jojojidatun/jg0gchi/farm_guns_alien_clash_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/votezevon/Gih7ig3/creative_destruction_game_mac.pdfIn PDF document text
    • https://xaforegitada.weebly.com/uploads/1/3/1/4/131413040/jidagu.pdfIn PDF document text
    • http://xelipev.22web.org/45569910740.pdfIn PDF document text
    • https://cdn.sqhk.co/xafeperale/ohhgcgh/dikivapolimuge.pdfIn PDF document text
    • https://cdn.sqhk.co/pomiziluda/hcnjjoK/19302626055.pdfIn PDF document text
    • https://pituluwo.weebly.com/uploads/1/3/1/4/131437949/572dda2.pdfIn PDF document text
    • https://welukixavise.weebly.com/uploads/1/3/1/0/131069839/nanujazijada_zojojago_lukaxusumorumu.pdfIn PDF document text
    • https://nodikakubal.weebly.com/uploads/1/3/5/9/135966501/julagikikap.pdfIn PDF document text
    • https://cdn.sqhk.co/rivitovolu/7ja5OGp/wunanezadapijoxakudujir.pdfIn PDF document text
    • https://pusuxefemaj.weebly.com/uploads/1/3/4/1/134108889/boxatavilefi.pdfIn PDF document text
    • https://cdn.sqhk.co/kepilujofeje/6ibjciq/60885555514.pdfIn PDF document text
    • https://tamagokevalagir.weebly.com/uploads/1/3/0/7/130776783/rumume-vadawazaxi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://vebegab.rf.gd/zawusuvales.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/ksp_jailer_warder_key_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/adb_driver_xiaomi_4x.pdfIn PDF document text
    • http://mugekalamiwatek.epizy.com/marriage_affidavit_format.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4E6 5544 bytes
SHA-256: 64ec7b88fd374820c58f6fce63ca6e076ab76d4345a3769920e9943f49b84dbc
font_01_sfnt_off0000e7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C9 9680 bytes
SHA-256: dfa2fb3017cc9623a1b2facd707d6bba3f962bc442d06387425b6539dc5c2d9e
font_02_sfnt_off000108f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108F2 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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