Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade1f58a8673306d…

MALICIOUS

PDF

82.2 KB Created: 2021-03-04 12:57:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 995cea7d99e825ddfb0805b1de64192b SHA-1: 9ae5815b79bc135a5dff6e74d6d5ee84125bc8fd SHA-256: ade1f58a8673306d99c97108c96da5d4ddf08afa2cefeb0395d4f0d79e16ce3b
96 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text related to downloading an Android application, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/123?utm_term=download+fl+studio+mobile+android+apkpure PDF link annotation
    • http://wukebejajixajen.iblogger.org/penelinulosabu.pdfIn PDF document text
    • http://zavudonalu.66ghz.com/annotate_online_free.pdfIn PDF document text
    • http://worabipupe.mypressonline.com/laridaxavivizovaborup.pdfIn PDF document text
    • https://cdn.sqhk.co/lisakopew/idwPDhj/katabetakoripizodaxojijom.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/hgidiiI/59552095668.pdfIn PDF document text
    • http://dosijefa.mypressonline.com/percy_jackson_titans_curse_movie_watch_online.pdfIn PDF document text
    • http://kufowawixapiva.sportsontheweb.net/rebod.pdfIn PDF document text
    • http://kazexajisodibu.medianewsonline.com/22911189183.pdfIn PDF document text
    • https://cdn.sqhk.co/tibidimewako/acrhi6X/euro_truck_racer_3d_simulator.pdfIn PDF document text
    • http://linza.media/sutra_du_lotusfotm9.pdfIn PDF document text
    • http://dakaxox.22web.org/13553037075.pdfIn PDF document text
    • https://cdn.sqhk.co/susojareb/hc4jg9N/riposte_pronunciation_english.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/xefezesebusu/63100063408.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/9083615464.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/evgeny_kuznetsov_injury_report.pdfIn PDF document text
    • http://gamalebivufije.rf.gd/19492293360.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/38946289356.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/funegabanovatazutab.pdfIn PDF document text
    • http://dexifuv.epizy.com/11327869149.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_off000102a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102A3 5480 bytes
SHA-256: cecabf8c73b4bad2ed65a563b0b473b7ab6608c2986e782b4c0636bc231faeac
font_01_sfnt_off00011544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11544 11180 bytes
SHA-256: 19fc5e9dfc747677085c3d806afda3a28b6d0a42b81f058ac0c65f54a3e60eea