Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2b7c8420a9d1475…

MALICIOUS

PDF

67.9 KB Created: 2021-03-28 05:15:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: caa6f5ce2d2f11742f29c7548d9413e0 SHA-1: 9162a5318a9e1c6d4d21cbe33b4adad99fa431b3 SHA-256: e2b7c8420a9d14757b8a5123f50b1a664c1e5f043ca6b5e309bc793e5c688297
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 0.9996

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/wix?keyword=pushing+up+the+sky+story+pdf PDF link annotation
    • http://budokudepa.scienceontheweb.net/a_christmas_carol_movie_1938_watch.pdfIn PDF document text
    • https://sifapovidajep.weebly.com/uploads/1/3/0/7/130738911/f4ba93804994495.pdfIn PDF document text
    • http://pejokepi.mywebcommunity.org/47651583764.pdfIn PDF document text
    • https://wukelefitifaka.weebly.com/uploads/1/3/4/8/134882985/7336419.pdfIn PDF document text
    • http://fipizilemuwob.medianewsonline.com/pewimawedokiroxizimegik.pdfIn PDF document text
    • http://safijejog.mygamesonline.org/kosal.pdfIn PDF document text
    • http://gonugotez.22web.org/a1275_transistor.pdfIn PDF document text
    • http://fipizilemuwob.medianewsonline.com/94831828354.pdfIn PDF document text
    • http://vamefegali.mywebcommunity.org/frozen_shoulder_exercises_spanish.pdfIn PDF document text
    • http://fanexaxujuto.22web.org/bankers_adda_english_capsule_download.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/uud_sesudah_amandemen.pdfIn PDF document text
    • http://sakulog.sportsontheweb.net/puvowojira.pdfIn PDF document text
    • http://mezogevap.mypressonline.com/18383681538.pdfIn PDF document text
    • https://logomuwijo.weebly.com/uploads/1/3/0/7/130738525/9374987.pdfIn PDF document text
    • http://riwotivadejud.sportsontheweb.net/73255167513.pdfIn PDF document text
    • http://jepisafidezegun.scienceontheweb.net/52420578434.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/gedexim/anemone_ios_12.pdfIn PDF document text
    • http://faluzaxubip.epizy.com/9675849021.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/goudy_old_style_bold_font.pdfIn PDF document text
    • http://zusobudem.epizy.com/jawejani.pdfIn PDF document text
    • http://bupalim.atwebpages.com/bekazivozupivoko.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/android_box_xiaomi_amazon.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_off0000ce7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7F 5228 bytes
SHA-256: 14ede96fb3731280b7a589945c0d1e8e4fa7fcde798c5b12f4410bedbf7508c7
font_01_sfnt_off0000e052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE052 9932 bytes
SHA-256: b08ba9a42da468d3513d3f0d2ce61a3b44d8ca6813e602f9a21fc890560008f8

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