Malicious PDF — malware analysis report

Static analysis result for SHA-256 226ba84d3a132eaa…

MALICIOUS

PDF

71.2 KB Created: 2021-02-26 06:57:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d7f81443a31fa4230ae4779cd6f376fc SHA-1: 2289c56f745c8295cfa4dc930f2f0bdc5e36fe50 SHA-256: 226ba84d3a132eaa56d9ad5348e5e05cc0d5afe471e4691ef431a7cd3454ffa8
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, specifically as a phishing trojan. It contains an embedded URI pointing to 'bologen.ru', which is likely used to host or redirect to malicious content. The document body, though heavily obfuscated, suggests a lure related to 'amelia bedelia pdf download', indicating a potential phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=amelia+bedelia+pdf+download
    • https://cdn-cms.f-static.net/uploads/4498801/normal_602bdf82749e9.pdf
    • https://cdn.sqhk.co/sobexofap/gigjhhH/hoover_carpet_cleaner_detergent_walmart.pdf
    • https://static.s123-cdn-static.com/uploads/4469638/normal_60091f6f1bfa6.pdf
    • https://vuvudarekiw.weebly.com/uploads/1/3/4/0/134017261/gixivagobuloba.pdf
    • https://cdn-cms.f-static.net/uploads/4427293/normal_6035286a2195a.pdf
    • https://wudizabilizone.weebly.com/uploads/1/3/4/7/134745746/fovedonutoze_sujogo_sumenixogo_wulinal.pdf
    • https://cdn.sqhk.co/furafurume/7WFyZcd/mobenaxoragujov.pdf
    • http://potoborotagivud.22web.org/peselakof.pdf
    • http://medyayazilimtr.com/8453944470vy3p8.pdf
    • https://fukenotaza.weebly.com/uploads/1/3/2/7/132740373/mobosodozumizi.pdf
    • https://mimudokax.weebly.com/uploads/1/3/4/7/134742140/vexajegipizago.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kakapefetabol.rf.gd/65811884945.pdf
    • https://s3.amazonaws.com/vuxalirudidel/78523906287.pdf
    • https://s3.amazonaws.com/xulepiwa/goxizavitiwovanesoleza.pdf
    • https://s3.amazonaws.com/vudivuzakal/balancing_chemical_reactions_practice_2_answer_key.pdf
    • https://s3.amazonaws.com/sedimeraxufi/delete_search_history_on_google_maps_android.pdf
    • http://duzewinabo.epizy.com/rijex.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_off0000dc2a.bin
7470f9b8bbe1914c7a47afd7ceaeb709f4a635e4a3c577a5aa6aa451c53bced1
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2A 5136 bytes
font_01_sfnt_off0000eda0.bin
9b7e0710045a9a70cbe12555bfd8a173d24a43864239655b4f148bcdf88cd683
pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA0 10004 bytes