Malicious PDF — malware analysis report

Static analysis result for SHA-256 745ac7f63bc52f00…

MALICIOUS

PDF

72.5 KB Created: 2021-02-13 11:47:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5d1a9d96aab09746ed9370eaae50f50a SHA-1: dda5c2f65b2bebb73b3c96baf22c8c8752d15abf SHA-256: 745ac7f63bc52f008ba167c4fe29955bacf63be4bd90599b6a38cc10cfa5d314
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=hp+pavilion+17-e016dx+keyboard PDF link annotation
    • https://vuguwawu.weebly.com/uploads/1/3/0/7/130776175/16b34.pdfIn PDF document text
    • http://repair-monokoles.ru/38053353735lwgq8.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/jeneguzelaniwadusuruki4vl2f.pdfIn PDF document text
    • http://lnstagramcopyrigtservice.com/nanda_2018_espaolem3wn.pdfIn PDF document text
    • https://cdn.sqhk.co/mudonisogub/7RcghAc/96104356050.pdfIn PDF document text
    • https://sunuxima.weebly.com/uploads/1/3/5/3/135324667/fexuw-pabosele-vilotisafiful-lejonu.pdfIn PDF document text
    • http://lnstagram-helps-contact.com/work_cited_mla_format_generatordrbi6.pdfIn PDF document text
    • http://vashmaster.info/pupijotaniluj2ngkt.pdfIn PDF document text
    • https://nuvikivubadubud.weebly.com/uploads/1/3/5/2/135299037/jowonoxatuvudo.pdfIn PDF document text
    • http://legendnat.space/nolatumatekho6h.pdfIn PDF document text
    • http://mon-cmbretagne.com/ost_cinderella_2015_lavender_blue6u6fd.pdfIn PDF document text
    • http://allerlo.xyz/very_hungry_caterpillar_sheet_cake3o273.pdfIn PDF document text
    • https://tumokisomagen.weebly.com/uploads/1/3/4/8/134897409/natadelurijadit.pdfIn PDF document text
    • https://cdn.sqhk.co/xunixenovapi/CiiFusG/king_s_romance_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/linidivez/hCXgdvV/jaxodamowipexinume.pdfIn PDF document text
    • https://cdn.sqhk.co/zaniridut/8GgegQU/star_wars_rise_of_skywalker_emperor_palpatine_theme.pdfIn PDF document text
    • https://cdn.sqhk.co/sovanoniwuva/jrghaIj/csr_racing_2_hack_discord.pdfIn PDF document text
    • http://regvoolkim.website/making_inferences_worksheets_for_second_grade9se3o.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/cXtDPIz/e_configuration_lithium.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/viscosity_astm_d445.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_off0000de30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE30 5628 bytes
SHA-256: e069b3f473c483341cf1888676261135c60f4d40a382ec2013794216fd8e7a2c
font_01_sfnt_off0000f185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF185 10444 bytes
SHA-256: eb8fe89319e7fca6553c71755f84cc1b700ffa0bcde57ae93b609998248c3ab0