Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9848ba454bedffa…

MALICIOUS

PDF

75.9 KB Created: 2021-04-02 17:15:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c01469a176a885e7da3e265c098741fb SHA-1: 9becfe1bcd27a229491f7b812bffd193537c7a83 SHA-256: d9848ba454bedffaa5cedb8e272a5aa3be156f5f4fca314f97bb7dedd7c03fc0
96 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Cisco telnet commands pdf' and embeds a URL pointing to a suspicious domain. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. While no scripts were directly extracted, the presence of an external URI and the overall classification suggest a phishing attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://seumenha.ru/strik?utm_term=cisco+telnet+commands+pdf
    • https://cdn.sqhk.co/wemorapi/gjeFAhh/38347305595.pdf
    • http://dijawobal.iblogger.org/gikadomegedaz.pdf
    • http://veselutut.mywebcommunity.org/zomisupaxoforur.pdf
    • https://cdn.sqhk.co/salujokep/hfUgdhe/41033378702.pdf
    • https://cdn.sqhk.co/luwesefizi/2gihKNP/smilodon_rampage_game.pdf
    • https://cdn.sqhk.co/xamitarerivu/jcgiEib/crafting_island_survival_mod.pdf
    • http://lofajemami.sportsontheweb.net/91795556769.pdf
    • https://cdn.sqhk.co/wogokodu/ahjfGif/59349280970.pdf
    • https://cdn.sqhk.co/bebomopakax/hjgilge/2442460977.pdf
    • https://cdn.sqhk.co/wajuletixex/cAZXUSA/vowifomipibosumimevala.pdf
    • https://cdn.sqhk.co/xafemepino/ehdzqyq/gelidaguxuvuduzer.pdf
    • https://cdn.sqhk.co/sepufaziru/gh0maCr/automatic_reply_message_examples_facebook.pdf
    • http://tinesemexogo.mygamesonline.org/functional_analysis_fundamentals_and_applications.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/faduxodiwo/zuroburufebikex.pdf
    • http://rowisumemosil.rf.gd/89991798594.pdf
    • https://s3.amazonaws.com/dowavelaxam/watchmen_comic_book_summary.pdf
    • https://s3.amazonaws.com/tuzamada/womugokumoxev.pdf
    • http://poziluxolebulu.epizy.com/vidmate_for_android_latest_version.pdf
    • https://s3.amazonaws.com/wivunonovef/gogatulobigijuxigezorofu.pdf
    • https://s3.amazonaws.com/jedaxopopuko/android_civilization_like_games.pdf
    • http://lejiletuvasipib.onlinewebshop.net/5402628705.pdf
    • https://s3.amazonaws.com/kefiperizonofu/galum.pdf
    • https://s3.amazonaws.com/tonemakopinibem/how_to_use_a_hoover_steamvac_silver.pdf
    • http://vejegaba.atwebpages.com/crime_prevention_through_environmental_design_nsw.pdf
    • http://wazajimebal.epizy.com/94990427647.pdf
    • https://s3.amazonaws.com/woxojuxafopuv/calculator_hide_lock_app.pdf
    • https://s3.amazonaws.com/nolarifaforuxop/kusurisosasibed.pdf
    • https://s3.amazonaws.com/potamotaz/finawusipamelaxovupaweran.pdf
    • http://kisijolimis.epizy.com/bosch_gsb_13_re_manual.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb58.bin
b7308e252a28d322b1062df27c79be0917212e080d94d9cb32a8772200ba4952		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB58 5108 bytes
font_01_sfnt_off0000fca6.bin
eebed1ee8a33b52379310f934406f026946356964ee4fee990a167e7317e5291		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA6 10808 bytes

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