Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a47e2b84cf6378…

MALICIOUS

PDF

81.5 KB Created: 2021-03-09 15:47:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 819f0bf649e66e3ee19ca98479dcafad SHA-1: 9ac31b351fe911aebc43271347268f2af924677d SHA-256: 22a47e2b84cf63786b62843f33c0a214da31c78f78b3c0839d211a628d6dca33
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ML and ClamAV, as malicious and phishing-related. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains text related to 'Wrong turn part 2 tamil' and application metadata, which may serve as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://mezovuduw.ru/123?utm_term=wrong+turn+part+2+tamil PDF link annotation
    • http://ipatovaalena.ru/fire_emblem_birthright_talent_guideszv3o.pdfIn PDF document text
    • http://cardio-natural.info/descargar_pelicula_la_cenicienta_disney1ub87.pdfIn PDF document text
    • https://duvujisukodat.weebly.com/uploads/1/3/4/6/134674851/8706644.pdfIn PDF document text
    • http://verefdliyvtorogo.xyz/super_start_power_pack_how_to_charge6npf9.pdfIn PDF document text
    • https://cdn.sqhk.co/pifonode/dieRprp/battle_ops_mod_apk_rexdl.pdfIn PDF document text
    • http://specialsale.info/4293977311c0jsq.pdfIn PDF document text
    • http://plafond.xyz/vamifazavawapasvjhrv.pdfIn PDF document text
    • https://fazolusafiwef.weebly.com/uploads/1/3/4/5/134585025/zidajidopisil.pdfIn PDF document text
    • https://numojenemisuben.weebly.com/uploads/1/3/2/3/132303045/sezidaxezalolak-fonukovekiwuku-xegisadevuful.pdfIn PDF document text
    • http://omerkatanalp.com/vokojezaxajaxugi2xo3.pdfIn PDF document text
    • http://mivetys.xyz/cuanto_mide_un_metrop8tx1.pdfIn PDF document text
    • https://siwinapevaz.weebly.com/uploads/1/3/4/3/134338690/tanino_xapobukapasik.pdfIn PDF document text
    • https://cdn.sqhk.co/tatiwurixiwo/jAghqqi/real_flip_sequin_live_screenshot.pdfIn PDF document text
    • https://zesakexe.weebly.com/uploads/1/3/5/3/135314388/nebubogomefif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://januxak.rf.gd/phpstorm_reformat_code_all_files.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/75093881786.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/kilebop.pdfIn PDF document text
    • http://napubuxuwel.epizy.com/baby_rhymes_video_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/guardian_egyptian_font_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/python_sklearn_decision_tree_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/metformin_xr_500mg_weight_loss.pdfIn PDF document text
    • http://xupanapil.epizy.com/97730873615.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0DC 5104 bytes
SHA-256: a517d4b732d79cf8ead4e7e1a1e738b10dbca2de98bd11a443ce1464c589ee65
font_01_sfnt_off00010235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10235 11516 bytes
SHA-256: dcf77e9f1d92436302c01d816eb842f0e246545903f943bf5a8305a95b5491c0
font_02_sfnt_off00012936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12936 6084 bytes
SHA-256: f5fe2de525700542684e23a11f1cb185b9ffab030677c6a48f3d5a1088c9e53b

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