Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0807e012854ae5…

MALICIOUS

PDF

80.3 KB Created: 2021-03-05 16:16:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 9c322353d40191c6290caf5059d45363 SHA-1: 5c8df0081da14d3657c1e700e404f0bea5a4c342 SHA-256: 0a0807e012854ae502affd967a6ffc374e6f11fcef7402a3af28833aaf5ae646
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a flight control system manual, directing users to a suspicious URL.

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 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://druttle.ru/strik?utm_term=saitek+x52+flight+control+system+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446264/normal_6016069a07668.pdfIn PDF document text
    • http://kafologegodudo.iblogger.org/diwenunij.pdfIn PDF document text
    • http://dozixolabizije.iblogger.org/wamatalu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481064/normal_603120a2cf8b8.pdfIn PDF document text
    • https://nanavefog.weebly.com/uploads/1/3/0/7/130775134/484b1c.pdfIn PDF document text
    • https://cdn.sqhk.co/rubuxupab/ia9VjfS/wowuvozexazodi.pdfIn PDF document text
    • https://riwozetamozu.weebly.com/uploads/1/3/4/3/134331456/4500397.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414486/normal_6019c3e959932.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/g4gthh5/farm_story_game_app_download.pdfIn PDF document text
    • https://sejexogubason.weebly.com/uploads/1/3/1/0/131070030/4497522.pdfIn PDF document text
    • https://cdn.sqhk.co/bujerinalo/hbicsTY/zombix_online_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481527/normal_60215f6dce0c4.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/cJifyjh/ufc_tonight_time_gmt.pdfIn PDF document text
    • https://degubazof.weebly.com/uploads/1/3/5/3/135304991/jetos.pdfIn PDF document text
    • https://cdn.sqhk.co/kisoxukapab/jbijxhb/majukulubukigusimifugere.pdfIn PDF document text
    • https://sinuxogutit.weebly.com/uploads/1/3/4/5/134505158/sorubokililojijura.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367273/normal_6014853d03104.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wifipuve.epizy.com/army_leadership_requirements_model_fm_6-22.pdfIn PDF document text
    • http://finunaji.rf.gd/rem_live_bootlegs.pdfIn PDF document text
    • http://sowawobajomo.rf.gd/java_jre_64_bit_windows_8._1.pdfIn PDF document text
    • http://basutija.epizy.com/acueducto_romano_de_segovia.pdfIn PDF document text
    • http://luwulifinuneti.epizy.com/batho_bana_ke_bao.pdfIn PDF document text
    • http://sejofinudagiji.epizy.com/xunajinesexizewujilap.pdfIn PDF document text
    • http://dedalumakur.epizy.com/inside_reading_answer_key_vk.pdfIn PDF document text
    • http://tesitanine.rf.gd/how_to_clean_filter_on_whirlpool_duet_sport_washer.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_off0000f8d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D5 5888 bytes
SHA-256: 669f28887f768e5dbaca2f56e79af984f42301c84128a09147f4edd07058cc45
font_01_sfnt_off00010cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CCE 11952 bytes
SHA-256: a08416c474ef9cf8c8111c253d422db77ae1737e9c556e879090838dcbaaa386

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