Malicious PDF — malware analysis report

Static analysis result for SHA-256 b18763d9d1afc0c6…

MALICIOUS

PDF

78.0 KB Created: 2021-04-09 22:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 948b12f13b5a62815fb88d0b26407975 SHA-1: 2b5715150c160b4bc15b4107a04ad08d81809e4d SHA-256: b18763d9d1afc0c6e939256497a0e55b07c6068db6a3a11f60faf7b8d52865aa
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent URL pointing to a suspicious domain ('dugedepap.ru') that is likely part of a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains keywords related to 'Fisher Price rainforest bouncer assembly', suggesting a lure to disguise the malicious nature of the links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dugedepap.ru/strik?utm_term=fisher+price+rainforest+bouncer+assembly PDF link annotation
    • http://tryse.xyz/interior_design_basics_principlesitxhf.pdfIn PDF document text
    • http://ontrade.top/kadirepaxeluxuu3sxy.pdfIn PDF document text
    • http://jixaravaxagisuf.22web.org/patologi_klinik_adalah.pdfIn PDF document text
    • http://grantmedica.ru/what_can_i_descale_my_keurig_withux9vv.pdfIn PDF document text
    • http://docita.fun/fenix_2_for_twitter_2.9_8_apk_fullpt6ab.pdfIn PDF document text
    • http://ooovseanalizi.ru/68359210602rbhc.pdfIn PDF document text
    • http://ketorebagibof.22web.org/wibijuwitanativobuk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1a447ccf-a6a5-490c-ad31-399ae8169532.filesusr.com/ugd/cf5184_27f9e7290e834a4d9eebb68686a9233f.pdf?index=trueIn PDF document text
    • https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_8adc8f5616b84dd581d845eac2b673c7.pdf?index=trueIn PDF document text
    • http://guwupurog.epizy.com/babaniturixupabeziwox.pdfIn PDF document text
    • http://felixoxajaxev.epizy.com/ralejewej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/681875c1-bfd2-49ce-a87f-626f7abcaf5b/what_is_the_importance_of_perspective_drawing.pdfIn PDF document text
    • http://pikasimowojinub.epizy.com/waec_chief_examiners_report_2018_bece.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/nesarajunetademugi.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/38244326982.pdfIn PDF document text
    • https://fc06435f-e709-4c80-b59d-96fa470c1a13.filesusr.com/ugd/bdc04d_b238097417da4c7fa523514b952f15a6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/1093e4a4-da27-4598-8d35-21c09f6d98d3/53626289450.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/xopinewunosovolorulamel.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/how_long_charge_beats_solo_3.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/java_file_absolute_path.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/electrical_wires_and_cables_specifications.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/gobemariki.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/addatimes_all_web_series_free.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_off0000f26a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26A 5452 bytes
SHA-256: 64889f5406ea77bf6515058d4c665188c7880a8d2bcd3675bf1d8793f339e758
font_01_sfnt_off000104d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104D7 11040 bytes
SHA-256: 6811ca76afe79c3fabbd8370a5c069fca18df1ec2966ef527624e9a7d14ecca7

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