Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b5eedc0dce8e34f…

MALICIOUS

PDF

72.8 KB Created: 2021-02-22 03:14:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 48197e5e17002344acfeb0f02eaaaa29 SHA-1: 71b0542017d690c8e1a3519a5f712878597a0105 SHA-256: 4b5eedc0dce8e34f5d449a5d77c75a78a4eb013d0916cb7557c8a1b563864a11
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://seumenha.ru/wix?keyword=dell+inspiron+one+2020+ssd+upgrade PDF link annotation
    • https://cdn.sqhk.co/sejixikerut/gcjcbyV/lajipelanutava.pdfIn PDF document text
    • https://rawunawikurek.weebly.com/uploads/1/3/5/9/135967659/dozotu.pdfIn PDF document text
    • https://dirututusobed.weebly.com/uploads/1/3/5/3/135347210/635f1dc4d.pdfIn PDF document text
    • http://soldonlittleton.com/mapleroyals_training_guide_assassiniz610.pdfIn PDF document text
    • http://mmmmmme.space/how_do_i_reset_my_swann_security_camera_passwordq6cz9.pdfIn PDF document text
    • https://cdn.sqhk.co/xanuramalu/4lfNi2m/65916014690.pdfIn PDF document text
    • https://cdn.sqhk.co/rekewuneboxu/ib4ygfV/22078337487.pdfIn PDF document text
    • https://kixivoveluvib.weebly.com/uploads/1/3/0/7/130775150/891c2cef2071f.pdfIn PDF document text
    • https://binigikuvoloxog.weebly.com/uploads/1/3/5/3/135332024/2662662.pdfIn PDF document text
    • http://bluebadgeapproval.com/85377825891ihs6n.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxabofapuw/hg6jjfg/60431002571.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/hDgdj4P/hscsciexamreg._gseb._org_check_application_number.pdfIn PDF document text
    • https://nawodovifuvobix.weebly.com/uploads/1/3/0/9/130969758/kimoruwa.pdfIn PDF document text
    • http://detonic-official.website/hockey_meaning_in_gujarati_quinoaxdy7n.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/geuha7j/gaxelobuzu.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/56d8Jji/91663777708.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzirixowev/b3us5jc/xmeye_dvr_network_setup.pdfIn PDF document text
    • https://cdn.sqhk.co/xafukapewe/TijV5hh/2020_election_dates_by_state.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
    • https://s3.amazonaws.com/lovetijif/meenkulathi_bhagavathi_amman_songs_free.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_off0000d29b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD29B 5200 bytes
SHA-256: de89df878a178ed7f99bc5888a0e0b649a114441b8c2f90121c40ca1196b5de2
font_01_sfnt_off0000e44d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE44D 10380 bytes
SHA-256: 7594ec1d73ecdb6ef269925eed71729d4e7d1e3a95362c6de80a0769f158dd94
font_02_sfnt_off000107e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107E1 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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