Malicious PDF — malware analysis report

Static analysis result for SHA-256 192c43e7edbdfc6e…

MALICIOUS

PDF

77.5 KB Created: 2021-04-25 08:22:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 6c7f3071bc4eeff4a29fba5c77d2759c SHA-1: 0310c277f644726ad2bd03683bf3c0948364f7c0 SHA-256: 192c43e7edbdfc6ea855d13318b1fd641d779ca4d0b3af3d62275e28ca1f5ff1
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'bologen.ru', which is likely a malicious domain used for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'competency based interviews'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/strik?utm_term=how+to+tackle+competency+based+interviews PDF link annotation
    • https://cdn.sqhk.co/merutigujet/L1ieij4/dotipuzitapapamapiti.pdfIn PDF document text
    • http://sevezor.scienceontheweb.net/sense_and_sensibility_book_short_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/tavaxikanabu/16hb44s/translate_on_screen_android_github.pdfIn PDF document text
    • http://itdiscounts.info/64114175153ybx5c.pdfIn PDF document text
    • http://feremujidonigu.getenjoyment.net/promissory_note_new_york.pdfIn PDF document text
    • http://shmelev.pro/dumadematosexupenim4m79.pdfIn PDF document text
    • http://ourfanz.com/pipelajubijomovakirom6cwei.pdfIn PDF document text
    • http://new-volosi.ru/rocket_mass_heater_for_salevwooz.pdfIn PDF document text
    • http://bbflowers.net/nafitiwujaxegonopazi2qi54.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/collection_letter.pdfIn PDF document text
    • http://probkin34.xyz/macau_nightclubs_guidev4mdz.pdfIn PDF document text
    • http://torixewiser.medianewsonline.com/2119563854.pdfIn PDF document text
    • http://apparentlyopt.com/kedepugolijawozogenujopahqzh1.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/pusori/31833839421.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/windows_batch_file_for_loop.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/cant_find_xbox_one_controller_on_pc_bluetooth.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/pufevopowonutoke.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/judigidevezofonelit.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/lagu_dusk_till_dawn_cover_samantha.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/beats_solo3_on-ear_wireless_bluetooth_headphones_-_satin_gold.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/6171212821.pdfIn PDF document text
    • http://dirazonun.myartsonline.com/jelujomomuxudomaban.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_off0000f11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11C 5636 bytes
SHA-256: 9fa22622ccad5d09268c3354f5025bdafd0e8d0194771c74d6dd1616326190b7
font_01_sfnt_off00010441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10441 10660 bytes
SHA-256: cb360b6c5c5824e0a46d27214ae658b9158e0e3f762534e9c3763cb3a1816028

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