Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aae0b2067c1fdd3…

MALICIOUS

PDF

165.5 KB Created: 2021-03-17 00:49:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4c063057301874d4390c3e8fc03c7ac4 SHA-1: 22bf61e4de4352d79c73934ecb2d8e3fcffd23af SHA-256: 5aae0b2067c1fdd3f692c81cb1718f851561098d97750c0ad85e28eb52e4430f
126 Risk Score

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 0.9984

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://dafemum.ru/123?utm_term=kolkata+full+movie+khiladi PDF link annotation
    • http://zinekob.66ghz.com/attu_tamil_movie_full_movie_free.pdfIn PDF document text
    • http://libralab.digital/wofurirogez6qdm.pdfIn PDF document text
    • http://argo-tourism.com/skin_so_soft_original_bath_oil_usesxqd2l.pdfIn PDF document text
    • http://itdiscount.pro/wowesarujawuem1q.pdfIn PDF document text
    • http://sinekem.iblogger.org/1213186853.pdfIn PDF document text
    • https://vejikawotepux.weebly.com/uploads/1/3/4/8/134887167/vofefubanimet_banulamukabana_lefifabomawavu_fojogomari.pdfIn PDF document text
    • https://poxomovuru.weebly.com/uploads/1/3/1/3/131381772/9561595.pdfIn PDF document text
    • http://ita-yog.space/ginezenanalilozuguf7n85.pdfIn PDF document text
    • http://rbqjkwklnd.xyz/mudolaxugugubegujugozopod37neo.pdfIn PDF document text
    • http://blognews.top/calendario_escolar_2020_a_2021_sep_hidalgogtd88.pdfIn PDF document text
    • http://markettop.pro/werigufoturidung57wq.pdfIn PDF document text
    • http://daimontimur.org/mamubige4s70.pdfIn PDF document text
    • http://nerroba.info/fl_studio_12_free_download_full_version_crack_youtubeh44lo.pdfIn PDF document text
    • https://gimitowogavu.weebly.com/uploads/1/3/4/7/134746983/rolut.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/bupesejirijejus/android_10_for_samsung_m20.pdfIn PDF document text
    • http://telomilabevi.epizy.com/81149789862.pdfIn PDF document text
    • http://kepojuwewi.rf.gd/43765698204.pdfIn PDF document text
    • http://muvaxuzuf.rf.gd/derexexikevodolufijume.pdfIn PDF document text
    • http://zobotipuzadevi.epizy.com/54925457890.pdfIn PDF document text
    • http://vidodusiv.epizy.com/xududi.pdfIn PDF document text
    • http://ketoxuxun.epizy.com/sociolinguistics_book_by_hudson.pdfIn PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/kidotifogoborifox.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/i_dont_care_lyrics_by_ed_sheeran_ft_justin_bieber.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/rikopavinij.pdfIn PDF document text
    • http://gizivafufet.rf.gd/91323422968.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A3 116764 bytes
SHA-256: 7b540972ca5785621d7646b5de765e97b3e7fea54a8e5a5c0c4ff0642eda6068
font_01_sfnt_off00025199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25199 4968 bytes
SHA-256: c2cee66227354f201b394738261f44d3abd7d83b8e662eeacc6d66d1aa75d147
font_02_sfnt_off00026269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26269 11004 bytes
SHA-256: 9b5b8a50666aa4954773fa3d012334345028d4753138adcc50b1b849a1c9639a

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