Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9db28aeec56c46a…

MALICIOUS

PDF

68.1 KB Created: 2021-02-19 02:46:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 521acc78b54a3805358ae0bdc633a3db SHA-1: 16f48eb101ee8acef6183a6f17e49634c63b860c SHA-256: d9db28aeec56c46a1937b0908014bc50d30917444b773635f24200726a223d85
242 Risk Score

Malware Insights

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

The PDF contains numerous embedded links pointing to external websites, many of which are hosted on disposable domains or known redirector infrastructure. Heuristics indicate this is a link farm designed to lead users to malicious content. ClamAV also detected this file as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7937

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://yafferge.ru/aws?utm_term=greek+mythology+characters+female In PDF document text
    • https://xupusunozad.weebly.com/uploads/1/3/1/0/131070799/zisuperuseg.pdfIn PDF document text
    • https://bukenazupe.weebly.com/uploads/1/3/4/5/134584610/wuniboba-jupebefiwipavi-siripiwat.pdfIn PDF document text
    • https://cdn.sqhk.co/gixedomawa/a6E40nj/kexaxewosiputimaxu.pdfIn PDF document text
    • http://ighelperscenter.com/xukojafiripkeub.pdfIn PDF document text
    • https://gubagomokugexat.weebly.com/uploads/1/3/3/9/133988684/joker.pdfIn PDF document text
    • https://tajewarupimef.weebly.com/uploads/1/3/2/6/132681391/rigijazorazenu.pdfIn PDF document text
    • https://cdn.sqhk.co/tesolivu/gjjL0oL/dexavebelolenika.pdfIn PDF document text
    • https://xobojurum.weebly.com/uploads/1/3/4/5/134599739/kavizafilugo_fuvaxiv_kidewevetofizev.pdfIn PDF document text
    • https://kaxobemux.weebly.com/uploads/1/3/4/6/134676595/zotalo.pdfIn PDF document text
    • https://mavabebuvaxar.weebly.com/uploads/1/3/0/8/130814237/9363295.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/7JYD5hA/talesefimajemuwixafujuwi.pdfIn PDF document text
    • https://buxogenawake.weebly.com/uploads/1/3/5/3/135385170/padagaju.pdfIn PDF document text
    • https://pobolibawawo.weebly.com/uploads/1/3/1/4/131437087/wapuraminusojed_buruviw_lifet_motusok.pdfIn PDF document text
    • https://cdn.sqhk.co/temisexezoda/bgdsjas/car_x_drift_racing_lite_hack_mod_apk.pdfIn PDF document text
    • https://jolibudowuw.weebly.com/uploads/1/3/4/5/134596284/gelemurexo.pdfIn PDF document text
    • https://labajamipudoxa.weebly.com/uploads/1/3/5/3/135399896/buvalojulodotaw.pdfIn PDF document text
    • https://cdn.sqhk.co/jebuxanit/izZWJgd/super_patrik_1._5_cast.pdfIn PDF document text
    • http://damvglaz0.xyz/76257822525waz3e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pusevim.epizy.com/bahubali_1_movie_in_hd.pdfIn PDF document text
    • http://gegenig.epizy.com/59822890888.pdfIn PDF document text
    • http://sewekovekejir.epizy.com/bidekujilipiluk.pdfIn PDF document text
    • http://fasasipapuzu.rf.gd/22511098101.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D4 5492 bytes
SHA-256: 6f2f0a7c0248d80004d5e07371bcd16904bf3bf8c4b0f3ad2dda0a37e7bcc531

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