Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1308e68ecd7b095…

MALICIOUS

PDF

73.2 KB Created: 2021-02-16 22:54:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a9d7286ed6e69f7cf9143ed495f2323f SHA-1: fac538e71127a3c727e9365dc8f07a15f53984db SHA-256: e1308e68ecd7b095b87e3394adf8fd10088cf137310b8b539722ce11b9a9442c
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • 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 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://baarspo.ru/wix?keyword=wish+i+was+a+little+bit+taller+shirt PDF link annotation
    • https://cdn.sqhk.co/tezofugowura/Mghvuft/pixel_art_builder_mario.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/iciijhE/pufulamug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5fd0ecc00eaf5.pdfIn PDF document text
    • https://cdn.sqhk.co/joxutedunik/haihpS8/86689243499.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/ibjbKhd/teamviewer_quicksupport_apkpure.pdfIn PDF document text
    • https://torejijifixoni.weebly.com/uploads/1/3/5/3/135335296/5417492.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369331/normal_60103f54b964e.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/sQFhdjd/drop_humanity_dark_souls.pdfIn PDF document text
    • https://cdn.sqhk.co/rukugewul/ihhjbgc/clever_captions_for_pics_with_friends.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384655/normal_5ff76ece7c0dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375086/normal_602628155a2ce.pdfIn PDF document text
    • http://fasufigige.iblogger.org/uttarakhand_army_bharti_2019_application_form_date.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/jehhLZ6/1171433985.pdfIn PDF document text
    • https://cdn.sqhk.co/kajipazuto/d4xgfjc/multiplayer_for_minecraft_pe_download.pdfIn PDF document text
    • https://giximelet.weebly.com/uploads/1/3/4/2/134234701/789457.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446377/normal_601c60c6a058b.pdfIn PDF document text
    • https://wisolowiguwo.weebly.com/uploads/1/3/4/6/134630140/pituwaga.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/nerugiraxura/preventive_maintenance_checklist_format.pdfIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/bonon.pdfIn PDF document text
    • http://tavawefojob.epizy.com/19829346763.pdfIn PDF document text
    • http://felubumasosazi.epizy.com/sudalifexixezexadaw.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_off0000d4a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A6 5016 bytes
SHA-256: fbdefe42ce5db727276f1c3602c7e1d22654cf89453d43f970f1f9f4362ae233
font_01_sfnt_off0000e5c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C6 15296 bytes
SHA-256: fe3f173bcee4cadb4203ee913f05bbd4dcb33ab68f4e080abb5acdbeab247e96