Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bac38fd31f08116…

MALICIOUS

PDF

74.0 KB Created: 2021-04-06 00:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 3f3eec440f3b1fd03abcb992e55c6e2a SHA-1: edc5ff66bf030650e2b244bc6ec0e7b68595ff35 SHA-256: 0bac38fd31f0811647ccd009691b9058581a492dbcd5ad11e80c5edcf275fbed
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with a critical heuristic identifying it as a link farm. The primary URL, 'https://xezojetit.ru/wix?keyword=filmlinks4u+web+series', suggests a lure related to web series content. The presence of embedded JavaScript, indicated by the T1059.007 technique, likely facilitates redirection to these malicious sites, potentially for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/wix?keyword=filmlinks4u+web+series PDF link annotation
    • http://hamsterbig.com/51582080113k573x.pdfIn PDF document text
    • http://lebepufu.mypressonline.com/fafedufe.pdfIn PDF document text
    • http://vosojivaru.mypressonline.com/cathode_ray_tube_file.pdfIn PDF document text
    • http://zisapawiwako.mypressonline.com/blender_character_modeling_tutorial_beginner.pdfIn PDF document text
    • http://bcpzonasegura10beta-viabcp.com/antologia_de_cuentos_espaolesivzg5.pdfIn PDF document text
    • http://tamodemuror.getenjoyment.net/89319253202.pdfIn PDF document text
    • http://doucheop.xyz/mini_crib_vs_pack_n_play_sizegd935.pdfIn PDF document text
    • http://bawilidow.mypressonline.com/all_engineering_drawing_symbols.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/wovisak/28770004381.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/spelling_connections_grade_8_unit_3_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/pediwazufasabo.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/guideline_tours_and_travels_kandivali.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/nanewufeluxutiwefirixa.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/gta_sa_lite_in_aptoide.pdfIn PDF document text
    • https://5366dd3f-28a3-4342-b8e5-5bed86455aec.filesusr.com/ugd/a92322_d17a66017ef441aeb16288c9a5d7fe93.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sisaxu/76183181817.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/77456595133.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/40512378321.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/13825244512.pdfIn PDF document text
    • https://e028ba52-6c86-493e-86b7-fecf7cd1c3eb.filesusr.com/ugd/bcb9fd_18a81aee56ad4f72a5aac850f09094d5.pdf?index=trueIn 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_off0000e687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE687 4960 bytes
SHA-256: 19f0ff939340034265cb94b2a5fb45cf76e85db0ee37cecd3e24b3a154330a52
font_01_sfnt_off0000f76e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF76E 10504 bytes
SHA-256: a168e206d34f884befeaae6094c193017dfbc9f85feb0c65e9463705ca209652

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