Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e56d172bf2cbe26…

MALICIOUS

PDF

80.0 KB Created: 2021-04-15 06:28:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9fc5dec7a98a2fe4d80df4c772191521 SHA-1: eac19a238a38ed2ec81940628538ae4ed1f0df6a SHA-256: 9e56d172bf2cbe26fd32cf1c9e9dfac29c4b4bf6e549f1313506b5e60c11e6e7
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm and containing suspicious URLs. The heuristics indicate it's designed to lure users with invisible links to potentially malicious domains. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to phishing or malware download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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/strik?utm_term=power+book+2+ghost+episode+8+online PDF link annotation
    • http://kaxiwemusemoj.mypressonline.com/gatak.pdfIn PDF document text
    • http://energytik.net/ruwagatusupudupasaxomivobi9wib.pdfIn PDF document text
    • http://pusovemolexed.scienceontheweb.net/bless_the_lord_chords.pdfIn PDF document text
    • http://fartook.online/how_to_gain_followers_on_instagram_without_hashtagsj5whj.pdfIn PDF document text
    • http://loginwithfb.site/how_to_fix_static_in_turtle_beachw2bnp.pdfIn PDF document text
    • http://pusapev.scienceontheweb.net/saxapabapodok.pdfIn PDF document text
    • http://pl50off.info/woxovoimtrt.pdfIn PDF document text
    • http://geesecam.com/1890985172tzzop.pdfIn PDF document text
    • http://erkutungotu.com/me_earl_and_the_dying_girlwsaox.pdfIn PDF document text
    • http://tersq.space/menuliletemuxomiv5wd3.pdfIn PDF document text
    • http://vepenuvix.mygamesonline.org/zotoximowisinakorinig.pdfIn PDF document text
    • http://fasad-dom.site/pavel_goia_agerwf1y.pdfIn PDF document text
    • http://idealica-ordina.site/action_sheet_like_ios_in_androidalvmp.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/zafijukopa/32642400175.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/visaledu.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/momiv.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/gazuragun.pdfIn PDF document text
    • http://mejizemobimoli.epizy.com/69101255876.pdfIn PDF document text
    • http://wosekamilos.epizy.com/37206448192.pdfIn PDF document text
    • https://39c10a3a-92c6-412a-a1bb-b8a1fc48fbc4.filesusr.com/ugd/259099_45824ccb1a5f46a1b7811c910a9c66bf.pdf?index=trueIn PDF document text
    • http://zuburojirep.epizy.com/what_means_deal_flow.pdfIn PDF document text
    • http://piwelipad.rf.gd/phonology_definition_linguistics.pdfIn PDF document text
    • https://ac09d6fb-20d1-47e2-97cb-2568fc137cdf.filesusr.com/ugd/03dcd4_cba7289570c140cbbc229e35d610d3bd.pdf?index=trueIn 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_off0000f97f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF97F 5636 bytes
SHA-256: e1d3ced247744a81150548ae864687454c6cf1b8d5d3c25597a6ae96a6f45099
font_01_sfnt_off00010cbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CBF 11224 bytes
SHA-256: fb86a01dfa656f27628df24e4c4ef066c5beb03ce68456bceea43aa811f9ccc1

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