Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce54768074eede35…

MALICIOUS

PDF

69.7 KB Created: 2021-02-11 16:18:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 02f5b9630b978f589c457a1f7cc5f884 SHA-1: ed55234831eff19e16c1fec6f235fbf3e7a3575d SHA-256: ce54768074eede3582441be0198333dd9fc99ebfb0a9c38bd49e3839adcff439
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The 'SE_CLICKFIX' heuristic suggests the document attempts social engineering by instructing the user to press Win+R or paste a command, likely to download and execute a secondary payload. The presence of numerous external URIs, including one pointing to a PDF file on 'carbags.site', further supports the attack pattern of luring users to malicious content. No scripts were extracted from this sample.

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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/wb?keyword=netflix%20android%20tv%20box%202019 PDF link annotation
    • http://carbags.site/bcci_logo_imageszxc0c.pdfIn PDF document text
    • http://robinmani.site/petonuyi24b.pdfIn PDF document text
    • https://cdn.sqhk.co/ratobomebal/ieUjhje/jesusagemazuvagunopifagu.pdfIn PDF document text
    • http://vadukut.iblogger.org/equinox_flipfont_apk.pdfIn PDF document text
    • http://parrrtner.xyz/geveneoszg8.pdfIn PDF document text
    • http://smartbright.club/60464095109as32l.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/ahjhfij/nariwegijuwatapazamuf.pdfIn PDF document text
    • https://cdn.sqhk.co/takoxuwal/iiegghr/49972138859.pdfIn PDF document text
    • https://cdn.sqhk.co/folamudoj/gjih9PJ/wikexukatonojijenudovoke.pdfIn PDF document text
    • http://jezojarugeboz.22web.org/chiari_ii_malformation_icd_10.pdfIn PDF document text
    • http://wubewaxipezopi.22web.org/45358469393.pdfIn PDF document text
    • https://cdn.sqhk.co/gegefemorosu/rhfcXgg/penazerutesizilixamokeg.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/eFLiclF/how_to_become_president_of_us_in_bitlife.pdfIn PDF document text
    • https://cdn.sqhk.co/tesadubozino/f9lA1gd/lock_screen_passcode_not_working.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rimamosapike.epizy.com/free_tv_guide_apps_for_ipad.pdfIn PDF document text
    • http://damabop.epizy.com/52100315757.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_off0000d403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD403 5444 bytes
SHA-256: 223d5c097f76a02d1f5be57b7f18987eb433bf1320da144850062b89a419be32
font_01_sfnt_off0000e6a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A6 10248 bytes
SHA-256: f4124a19adaa0ad4d2a8d842fca2f5dc946b28682d88c898079cff1885c401c2

Open this report in the interactive analyzer, or submit your own file for analysis.