Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dd60bd3198954f2…

MALICIOUS

PDF

72.9 KB Created: 2021-04-23 17:51:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9b4177a25c83ba5a171da1189eaab264 SHA-1: 16f317a399a8c3cd04c92c53e5d56d2fc5f9bb94 SHA-256: 5dd60bd3198954f2c0ac587e2ea4db256b2f4d7b0597725f1700197da302e28a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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 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://zajinet.ru/strik?utm_term=brida+paulo+coelho+espa%25C3%25B1ol PDF link annotation
    • https://cdn.sqhk.co/desixurate/CjAjaMb/senorita_song_piano_sheet_music.pdfIn PDF document text
    • http://rewokujow.scienceontheweb.net/juketaxivisijoforeweweb.pdfIn PDF document text
    • https://jafuxudaxifi.weebly.com/uploads/1/3/0/7/130739212/kuzidasirafidu.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/jnyjavp/upcoming_cartoon_tv_shows_2020.pdfIn PDF document text
    • https://zetovesejideze.weebly.com/uploads/1/3/1/4/131482946/napiwavatutulez-tigigalurerog.pdfIn PDF document text
    • http://pojapir.mygamesonline.org/exemple_de_cahier_de_charge_d_un_projet_industriel.pdfIn PDF document text
    • http://leree4.club/vodepipazezabakozdupan.pdfIn PDF document text
    • https://lowezikalazana.weebly.com/uploads/1/3/0/9/130969016/bc2d467.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/jgEjbPB/tubit.pdfIn PDF document text
    • https://xetasigebe.weebly.com/uploads/1/3/4/4/134443645/1861506.pdfIn PDF document text
    • https://koxawikala.weebly.com/uploads/1/3/4/6/134643159/ligixupuv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484126/normal_602e9b33e7790.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471091/normal_602594781fccd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453740/normal_605ef0c0145f3.pdfIn PDF document text
    • http://afracheat2.xyz/venikafi3hjb5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450419/normal_6011952e2a494.pdfIn PDF document text
    • http://interplast.ru/gitaberilovupatipivozipufscy19.pdfIn PDF document text
    • https://cdn.sqhk.co/wirepoti/JehihbE/25131769714.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/ibghFgj/king_s_college_london_mba_ranking.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/zoxewudunigus/beowulf_book.pdfIn PDF document text
    • http://nekelaxowe.atwebpages.com/jedov.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/56906675994.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/the_mask_of_the_red_death_theme.pdfIn PDF document text
    • http://faxevimisosideg.myartsonline.com/abscisic_acid_function.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_off0000db25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB25 5420 bytes
SHA-256: 5914611871735233b9eb54e409f5164d6dff70e51300fbe8335b36aad310f6b6
font_01_sfnt_off0000ed46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED46 12168 bytes
SHA-256: a0b46c6b3ec03b677be6b3257459efe3dc116cfa7a555ef45df1bfb84e0f89ff

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