Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa3af071097cc1d…

MALICIOUS

PDF

92.7 KB Created: 2021-03-04 10:07:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 1a6384fb6e9cdc89e1a2f20388f97d07 SHA-1: ea1f2389943de3b1fdec335c6a877be8f4da315f SHA-256: 6aa3af071097cc1d8bdf811727df977e8c289d8c47d28fcf7b51525033bf5379
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

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 0.9576

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://midufefew.ru/award?keyword=how+to+set+time+on+sangean+h201+radio PDF link annotation
    • https://cdn.sqhk.co/lefidotoxono/qiic9hh/pefivefubarini.pdfIn PDF document text
    • https://cdn.sqhk.co/suxupijisajo/hAhbuV2/vemesexel.pdfIn PDF document text
    • http://reloturuvum.22web.org/69124497632.pdfIn PDF document text
    • https://cdn.sqhk.co/matelasoguje/C8xJjjh/tops_switches_and_bottoms.pdfIn PDF document text
    • http://lufawobakisi.22web.org/lemopugolurabibubezefela.pdfIn PDF document text
    • http://neluvukod.22web.org/6189682508.pdfIn PDF document text
    • http://fulusixavopowem.iblogger.org/65174314634.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kutelitowolobe.rf.gd/what_are_some_of_the_different_types_of_sculpture.pdfIn PDF document text
    • http://rikopob.epizy.com/fikidurar.pdfIn PDF document text
    • http://ladisopezaxak.epizy.com/free_avg_antivirus_for_android_mobile.pdfIn PDF document text
    • http://suwugiborewetel.rf.gd/92459708438.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/araxis_merge_exe_free.pdfIn PDF document text
    • http://sawunalomagoda.epizy.com/download_film_rudy_habibie_3_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/giroxegefopa.pdfIn PDF document text
    • http://luzivamo.epizy.com/logitech_k800_keyboard_not_working.pdfIn PDF document text
    • http://pigunefib.rf.gd/nufodojonisuvevegipeb.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/kekisezasu.pdfIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014caa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CAA 5372 bytes
SHA-256: 74a395e3fddf0d8c0c44eeadc8e2bf5413ff5b5b4dcedba577d5cce138fb004f

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