Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfd80f36d7de8a1e…

MALICIOUS

PDF

78.9 KB Created: 2021-02-19 22:45:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: bdc92bdfb38d43247ff1bc315d512ff5 SHA-1: e0223c69f228cff49b9dbf122a661fd2823de124 SHA-256: dfd80f36d7de8a1e46c5ac4bba90b9efbfa04c888259cba7fab9ecadf9c2ff0d
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a critical heuristic firing for ClamAV detection. An external URI pointing to 'baarspo.ru' was extracted, suggesting a redirection to a malicious site. The document body, though heavily obfuscated, contains text related to 'Wolf of wall street streaming platform', indicating a lure. No scripts were extracted, but the PDF structure and external URL suggest it's designed to redirect the user to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wb?keyword=wolf%20of%20wall%20street%20streaming%20platform PDF link annotation
    • http://reform-st.ru/73805263790bs5c8.pdfIn PDF document text
    • http://dikebar.22web.org/diferencia_entre_un_motor_de_corriente_continua_y_alterna.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/fVXgjih/dreamer_lyrics_heartland_theme_song.pdfIn PDF document text
    • https://taxajoberaruvu.weebly.com/uploads/1/3/4/3/134320235/950631.pdfIn PDF document text
    • https://cdn.sqhk.co/raxuzuvuluf/gKDjgic/torepekobigibodutobozeg.pdfIn PDF document text
    • http://lidzadva.xyz/muxipujubutejefovorapiv4u37.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/idygcMV/major_league_baseball_hidden_ball_trick.pdfIn PDF document text
    • http://santand-es.com/19902139592eikrq.pdfIn PDF document text
    • http://prizinsta24.online/813989311029mn5l.pdfIn PDF document text
    • https://gidupewurugi.weebly.com/uploads/1/3/1/6/131637306/pakodipusagal-wiripezo-xogorexaxenazo.pdfIn PDF document text
    • http://ruseseru.iblogger.org/bicycle_chain_size_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wosoremozojofam.epizy.com/piwisaji.pdfIn PDF document text
    • http://vuloroluget.rf.gd/silujoviwag.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/albion_online_silver_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromisixinolib/famot.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/hss_first_terminal_examination_2019_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/how_to_add_appendix_apa_format.pdfIn PDF document text
    • http://pevixogojo.epizy.com/24480794473.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_off0000f5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A4 5324 bytes
SHA-256: 1118a0c8a1c477fe688c8fde12e809cf9962135bf031af9d69534b851baaf473
font_01_sfnt_off000107cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107CD 11240 bytes
SHA-256: ffb948e9e0d577d71b807a7bab6ee6bf25b3281fa606385f6e57458f4899a6bf

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