Malicious PDF — malware analysis report

Static analysis result for SHA-256 577b6acf9c42e9ab…

MALICIOUS

PDF

80.9 KB Created: 2021-04-28 10:38:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbfb5dc3ad304f8f105f142c7bd14eb8 SHA-1: 1e8a938b75cdbb569d7dc232505f8412d033f478 SHA-256: 577b6acf9c42e9ab82ba39f51f6cfde6005ef7f173184272cfd16d6d65106bfa
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text suggesting a lure for software downloads. Several embedded URLs point to potentially malicious PDF files hosted on various domains, likely serving as secondary payloads or further lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/051e6e7399f56ab250b273043636c74d/50028068524.pdf
    • https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/8voiedpshfnbcahdh65j89d572/buwiwepedeliwew.pdf
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081ce2c922f4---sulawezesurajogej.pdf
    • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160885c06cb649---nikutufikuf.pdf
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/16082888f4919f---minurareri.pdf
    • http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/qvb5cidi939nt8e92nomgiso83/fogerixoraxawoja.pdf
    • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16083ad839d051---48649133648.pdf
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160725bb06cffb---negitifiwo.pdf
    • http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608249fab9ee4---mexarenoluj.pdf
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/63de0ac66e4f98fb32eb1dbaf6eb5c17/rewideneku.pdf
    • http://aarogyamedico.com/userfiles/file/lilirikoberugewukiwaz.pdf
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084d3324be70---8278338027.pdf
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607914d68fbb2---14440289178.pdf
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/b0bd5ca9ff66b86428b7e587524991be/bofosewewetamo.pdf
    • https://cursosgratuitosonline.es/wp-content/plugins/super-forms/uploads/php/files/j51gem5o5qv86u0ujgaecdo7b4/tedivowozex.pdf
    • https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/udvovh2eg374pi3q1scb4mk2lv/54443062485.pdf
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076b1c0a5629---mujalexexiluzijejogi.pdf
    • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/36ao0n01i7a09tgvpijccpqpio/morebejobob.pdf
    • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/2a23e8a8a4e75f260449f1ee40026463/91696355760.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=picsart+for+pc+full+version+filehippo
    • 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_off0000ff9b.bin
d5aeac762fe7eeac64c24d33bef354b69365c13c8ffa3247d7623bf55137ae1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF9B 5164 bytes
font_01_sfnt_off00011130.bin
e7c752035600e47372946c5a51509b7e2073b285ca0f9e7efd200f66972d456b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11130 10928 bytes

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