Malicious PDF — malware analysis report

Static analysis result for SHA-256 697fe046bef2dbb7…

MALICIOUS

PDF

75.9 KB Created: 2021-02-27 21:42:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e2456f09cfe085065d6c55ab59f0737c SHA-1: 106819a4a81a4981ecde670c6c90ffcc33f958e2 SHA-256: 697fe046bef2dbb7fdd03d9aae83c9cdd940dc09b2a3083876f0ee78cee1f8cf
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 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=mere+relation+and+function+examples PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465905/normal_60076fef8b105.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382638/normal_601ef54015090.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465556/normal_60381d6888a76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417643/normal_5fe83e81d18ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368982/normal_60076ebcb673c.pdfIn PDF document text
    • https://silavetej.weebly.com/uploads/1/3/5/3/135314504/bujojarutapoxan.pdfIn PDF document text
    • http://worodariravo.22web.org/top_anime_wallpaper_for_android.pdfIn PDF document text
    • https://poperetaro.weebly.com/uploads/1/3/4/8/134893078/4200573.pdfIn PDF document text
    • https://vufosaxirit.weebly.com/uploads/1/3/4/0/134018891/2696722.pdfIn PDF document text
    • http://figojusu.iblogger.org/82522498827.pdfIn PDF document text
    • http://mattelipsticks.site/15958038226guykc.pdfIn PDF document text
    • http://theharaka.online/88386450218ip3ot.pdfIn PDF document text
    • https://kotirilu.weebly.com/uploads/1/3/4/3/134332744/3764464.pdfIn PDF document text
    • https://xebuzoxovekig.weebly.com/uploads/1/3/4/0/134018553/nalozolakipogavoreki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/rotowan/1516352560.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/huawei_mate_20_lite_aggiornamento_android_10.pdfIn PDF document text
    • http://zinimivozu.rf.gd/what_does_the_term_estate_mean.pdfIn PDF document text
    • http://dekuxibasor.rf.gd/fajojuda.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/guduvumosapolatarotob.pdfIn PDF document text
    • http://fikedexe.rf.gd/tuwidetemekap.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD951 5256 bytes
SHA-256: 7901b86a8460f3e04a44bd853f808ee38485d1cc207c69e82c4b636c585ce4f1
font_01_sfnt_off0000eb21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB21 11508 bytes
SHA-256: 617b564ee2b3b4e9b39df0147088dfb2f6cbd2b1c74d917670a46bc254cd54df
font_02_sfnt_off000112a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112A6 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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