Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e7ef53ffb6b8ef2…

MALICIOUS

PDF

74.0 KB Created: 2021-02-28 08:03:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 55dad3a58035f6d4cd3bda4ca95d0406 SHA-1: 1184d8b9b605dd35bfcceeb70f3e2361a12bbcae SHA-256: 9e7ef53ffb6b8ef27669f1341eabd55fede6bb7f1a2b25de10d25ca7ccea2cd4
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, identified as malicious by ClamAV and ML classifiers. The PDF structure and embedded content suggest it is designed to trick users into visiting the external URL, which is a common tactic for phishing or distributing further malware. No scripts were extracted, but the presence of external links and high detection scores indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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/aws?utm_term=ingenuity+automatic+bouncer+pink PDF link annotation
    • https://nepibosumu.weebly.com/uploads/1/3/4/3/134363752/292fa7705.pdfIn PDF document text
    • https://cdn.sqhk.co/zolilobup/dmjegfL/racing_limits_game_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/temazajilib/jhjgijc/basketball_slam_dunk_2_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/wthhih0/19971576892.pdfIn PDF document text
    • http://roduvogixaxo.66ghz.com/momoxix.pdfIn PDF document text
    • https://cdn.sqhk.co/jakatote/jcq3jgi/45965344559.pdfIn PDF document text
    • https://surigogalabilix.weebly.com/uploads/1/3/5/9/135961506/7481766.pdfIn PDF document text
    • https://noxolawozin.weebly.com/uploads/1/3/1/4/131452883/devanodepawu.pdfIn PDF document text
    • https://kozitasulama.weebly.com/uploads/1/3/4/6/134647404/9202a61.pdfIn PDF document text
    • https://mitanifujokuvu.weebly.com/uploads/1/3/0/9/130969645/rabakirolipudomi.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/jadudusujuje/sword_art_online_black_swordsman_ace.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/10670354042.pdfIn PDF document text
    • http://jixenefotudak.epizy.com/55303546097.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/android_arrayadapter_onclicklistener_example.pdfIn PDF document text
    • http://namidonom.epizy.com/wiromuzafeburakupe.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/88696849456.pdfIn PDF document text
    • http://levologujarobe.rf.gd/karezeruvimifoxilerera.pdfIn PDF document text
    • http://famegazaven.epizy.com/48815007420.pdfIn PDF document text
    • http://goziwofa.rf.gd/pimavowojinifafusiti.pdfIn PDF document text
    • http://koraxirimaxodet.epizy.com/amleto_libro.pdfIn PDF document text
    • http://temimepizunosaf.epizy.com/how_much_weight_can_a_2009_subaru_forester_tow.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_off0000e256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE256 5284 bytes
SHA-256: ba4646159cbd9116f663d666067d99edc6cb87461310c6c2ba241cf43b5de406
font_01_sfnt_off0000f44f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44F 11232 bytes
SHA-256: 1d54a195dff97bd2fb645b31aed98e9d609469b6bf05ed7aa7c9a33e3cf1f7c6