Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cfc429314d9d675…

MALICIOUS

PDF

72.0 KB Created: 2021-02-25 16:17:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 82ce606b614a1965186060114f0ebcbe SHA-1: 2fc2543c2fb7532aecacf8d76852fb90b998f7f9 SHA-256: 5cfc429314d9d6750bd237cca421d4c6ff8fe26ad1dfa6266cf6414e6afc42cf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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://maypoin.ru/award?keyword=replace+headlight+assembly+on+2005+dodge+ram+1500 PDF link annotation
    • https://cdn.sqhk.co/xadakede/ghjB585/pixel_battle_royale_download_pc.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/what_is_the_9_box_model.pdfIn PDF document text
    • https://kifewaremavej.weebly.com/uploads/1/3/1/6/131606874/lixutuvore.pdfIn PDF document text
    • https://sufudoni.weebly.com/uploads/1/3/4/8/134853368/diselajowo.pdfIn PDF document text
    • http://fawikenaxalu.scienceontheweb.net/63170970171.pdfIn PDF document text
    • https://cdn.sqhk.co/pekotegafod/jgCIYLP/gowebi.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/jasuzalebisixonuvad.pdfIn PDF document text
    • https://jowanubeso.weebly.com/uploads/1/3/5/3/135399775/1368338.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/jcjgeif/52696999040.pdfIn PDF document text
    • https://cdn.sqhk.co/fumazuri/aIhe1Fb/taylor_swift_paper_rings_lyrics_video.pdfIn PDF document text
    • https://gaturavokig.weebly.com/uploads/1/3/4/3/134317265/709608.pdfIn PDF document text
    • https://cdn.sqhk.co/xedogigiloli/xigt3jh/play_triominos_online.pdfIn PDF document text
    • https://cdn.sqhk.co/tixelila/eAifhdO/46641447678.pdfIn PDF document text
    • https://sitegevom.weebly.com/uploads/1/3/4/6/134664280/77d992ce47.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/internal_audit_jobs_in_south_africa.pdfIn PDF document text
    • http://xapaponagegite.22web.org/vegobisarugitoregaxuku.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/jevedijadiki/duxowanuvumegu.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/soxoxojuko.pdfIn PDF document text
    • http://deweleve.epizy.com/monster_man_2003_watch_online.pdfIn PDF document text
    • http://pasumogebono.rf.gd/canon_eos_5d_mk_iii_manual.pdfIn PDF document text
    • http://nodonukebonona.epizy.com/how_to_model_operational_risk.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_off0000da9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA9C 6188 bytes
SHA-256: 1d0f6fe5f745684b7ec2b75c6cd2daf3fe50633a2281b08736162fc3e34ce4bc
font_01_sfnt_off0000ef8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8D 10008 bytes
SHA-256: 97e93fb3a02c09059387c1f768c70543f8a867aa8aac1b43c473694a0dc63b9f