Malicious PDF — malware analysis report

Static analysis result for SHA-256 b227bfa78bd455a8…

MALICIOUS

PDF

111.8 KB Created: 2021-06-04 10:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 74381b70e59b247c2d620f1cb9dc78f0 SHA-1: 2cd14e20faa5657f896f3f0289bb1e43df55a5a4 SHA-256: b227bfa78bd455a8cf5de89c3777b3b43b2f147179fe3ca52eea2a59386a13bf
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV. 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 suspicious score 0.3577

Heuristics 4

  • 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
  • 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://medvor.ru/pbw?utm_term=sahih+bukhari+hadis+bangla+pdf PDF link annotation
    • https://rezomiwutamanap.weebly.com/uploads/1/3/4/3/134362688/dudedujuler_juvibulijabujip.pdfIn PDF document text
    • https://panemomozig.weebly.com/uploads/1/3/4/5/134503052/6468670.pdfIn PDF document text
    • https://ribapapa.weebly.com/uploads/1/3/4/4/134479292/6fbfd6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459941/normal_606a38e011a7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464863/normal_60305439b7678.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459937/normal_5ff582be734e5.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4371005/normal_60b47a1b592f0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mulasamesi.pbworks.com/w/file/fetch/144514356/dream_league_soccer_2019_kits_manchester_united_2020.pdfIn PDF document text
    • http://tazijebep.pbworks.com/f/bobofolebinivoj.pdfIn PDF document text
    • http://rimikupababo.pbworks.com/w/file/fetch/144545634/93212875865.pdfIn PDF document text
    • http://laxaxufudej.pbworks.com/f/laguwufa.pdfIn PDF document text
    • http://sawanixum.pbworks.com/f/11427274546.pdfIn PDF document text
    • http://zupelapowi.pbworks.com/f/ghost_recon_predator_apk_obb.pdfIn PDF document text
    • http://veweran.pbworks.com/w/file/fetch/144450300/87052972261.pdfIn PDF document text
    • http://jiboduxoguv.pbworks.com/w/file/fetch/144507237/death_certificate_form_west_bengal.pdfIn PDF document text
    • http://felefejimax.pbworks.com/w/file/fetch/144580704/62236926978.pdfIn PDF document text
    • http://lulimogosan.pbworks.com/w/file/fetch/144524013/tunixexitejidumakeso.pdfIn PDF document text
    • http://zeratuwolima.pbworks.com/w/file/fetch/144536664/rolowiwopaxekebum.pdfIn PDF document text
    • http://tukufidanega.pbworks.com/f/summertime_saga_latest_version_mod_apk_for_android.pdfIn PDF document text
    • http://wiwedano.pbworks.com/f/surah_yaseen_arabic_text_file.pdfIn PDF document text
    • http://sujagajo.pbworks.com/w/file/fetch/144528699/51486679297.pdfIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0001a829.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A829 11343 bytes
SHA-256: eafc29fd6a407b24a79d025a87c896967e8aef2a70fe60d9bb78338be04f24aa
font_00_sfnt_off00012347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12347 6568 bytes
SHA-256: 2ba6e0c4516ae528974428ab90d2fcb845e31fc6427c3681d976df34e50bf0fe
font_01_sfnt_off00013394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13394 5608 bytes
SHA-256: a61ba591db57d0df5874896f7216c0d1deef33be0d0e1c99dae406ddcff7440f
font_02_sfnt_off00014696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14696 22516 bytes
SHA-256: 2892d0fc6fafa90edd7cae7ce81ced7287683c5a1922a320cb4b23033d1e306d
font_03_sfnt_off000183ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x183EE 10580 bytes
SHA-256: 57bc1e2da1464bab5c99efe7f7d337d7f5c68878046f085e715c15a8a070a492

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