Malicious PDF — malware analysis report

Static analysis result for SHA-256 214121b663858b52…

MALICIOUS

PDF

81.1 KB Created: 2021-03-15 14:32:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1a65c694396e8023310d6a9452c27cdf SHA-1: 1a14b92ac1d783ae8e37e369de3e7ab2e329adc4 SHA-256: 214121b663858b522253d9048282a8ed069dfa68071bafa840b839240c9d80c3
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a malicious payload or conduct phishing. The document body, though partially corrupted, suggests a lure related to printable currency, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://pelibifir.ru/award?keyword=billetes+de+guatemala+para+imprimir+pdf
    • http://migipobazu.mypressonline.com/73889906283.pdf
    • https://cdn.sqhk.co/kupodakojav/jdiggjC/gorisabajumetamebiv.pdf
    • http://pixidilivutep.medianewsonline.com/31212991355.pdf
    • http://lagejarejitog.mypressonline.com/etre_et_avoir_au_futur_ce1.pdf
    • https://cdn.sqhk.co/jatobeguji/hjgfnxf/used_hockey_goalie_pads_for_sale.pdf
    • https://cdn.sqhk.co/lifudidu/hc6hfie/bitewemuj.pdf
    • http://hookup757.fun/penndot_archived_bd_standards6pxnt.pdf
    • https://cdn.sqhk.co/jalizovi/i5UheD2/basal_bolus_insulin_regimen.pdf
    • https://cdn.sqhk.co/vixemujomu/hpWhgR8/70145999529.pdf
    • http://topstop.site/50301905694bvjvx.pdf
    • http://lebizifijafaxim.medianewsonline.com/mitopadagasiwagedemimo.pdf
    • http://xrootunited.com/best_criminal_lawyers_near_meoar82.pdf
    • http://infonewstravel.com/xulovaxutilunoxouryny.pdf
    • http://kanaxade.mygamesonline.org/35708460911.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jajuzasalikirut/71807361584.pdf
    • https://uploads.strikinglycdn.com/files/979e5b43-5f86-4df7-9ffd-398effed244c/power_wheels_escalade_replacement_parts.pdf
    • https://uploads.strikinglycdn.com/files/79eacd54-61be-441f-bf74-9650f5a46277/what_does_the_electronic_fuel_injection_do.pdf
    • https://uploads.strikinglycdn.com/files/22224692-6a4a-4def-b5e7-8e19d45b7c33/11_minute_countdown_timer_with_16_bit_music_maker.pdf
    • https://uploads.strikinglycdn.com/files/0f696b63-ebaa-4f2c-9eb4-e84dea766a83/how_to_gain_weight_working_out_at_home.pdf
    • https://s3.amazonaws.com/jidosatikim/how_to_reset_parrot_bluetooth_car_kit.pdf
    • https://s3.amazonaws.com/gumagabu/musisebasabuwebasozekewos.pdf
    • https://uploads.strikinglycdn.com/files/f1278796-05f0-48ec-bad1-b719d9974487/does_the_helix_5_g2_have_gps.pdf
    • https://s3.amazonaws.com/zunewidimem/vupifubab.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_off0000fc8a.bin
a564713ae0bf441b075524767d5ae12a189b8fdf06ca50ca93a38a3424cc279c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8A 5408 bytes
font_01_sfnt_off00010edc.bin
cf458ca9190e19c7733febf8d8c05a92df4ced5c2304d143311b5c8e74b8fc4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10EDC 12060 bytes

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