Malicious PDF — malware analysis report

Static analysis result for SHA-256 338cc5c959388835…

MALICIOUS

PDF

75.3 KB Created: 2021-02-26 22:54:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: d72da1a9046dc0ba9fed19ab056df719 SHA-1: c9840b76f3eabe633ec638672d9f2cddd6503001 SHA-256: 338cc5c959388835bb67bd45c980ce64fc5303395a5ca95920cabcd26fc9741e
156 Risk Score

Malware Insights

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

The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, suggesting a link farm or SEO manipulation tactic. While no scripts were explicitly extracted, the presence of external URIs and the overall structure point towards a malicious document designed to redirect users or host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://botokaw.ru/award?keyword=simpson+3200+psi+2.5+gpm+pressure+washer+manual PDF link annotation
    • http://jaxebememapi.iblogger.org/los_generales_de_dios_libro.pdfIn PDF document text
    • https://jojusilinu.weebly.com/uploads/1/3/4/3/134343509/61cf5b75fde2e9c.pdfIn PDF document text
    • https://luwegojozokozop.weebly.com/uploads/1/3/0/9/130969796/tonizidebewutu-xijefijino.pdfIn PDF document text
    • https://kevofogag.weebly.com/uploads/1/3/5/9/135962027/d2a0af534e9cb.pdfIn PDF document text
    • http://galubiwigo.iblogger.org/aeroplane_song_2018_pagalworld.pdfIn PDF document text
    • https://buniburus.weebly.com/uploads/1/3/1/6/131637527/1780960.pdfIn PDF document text
    • https://godanikepogi.weebly.com/uploads/1/3/4/5/134509841/5661139.pdfIn PDF document text
    • http://rastet-malysh.ru/my_ride_65_installationia80c.pdfIn PDF document text
    • http://tuwujunosemep.iblogger.org/62146837509.pdfIn PDF document text
    • http://cosmosqrab.online/sound_of_silence_disturbed_tabuxxmi.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/dutimajizowa/gedemujotefoxakikaxowem.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/loxiteliru.pdfIn PDF document text
    • http://vurorevebosexu.rf.gd/audio_converter_tools.pdfIn PDF document text
    • http://weralawubuzeg.epizy.com/sairat_full_movie_with_english_subtitles.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/vesilagajitamewoluzemopu.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/shooting_game_apk_for_android.pdfIn PDF document text
    • http://luwiworim.epizy.com/broken_heart_boy_image.pdfIn PDF document text
    • http://zapofekeba.rf.gd/genie_pro_screw_drive_learn_button_not_working.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_off0000e80b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE80B 6024 bytes
SHA-256: 1c4022ebf37707b691f1155491785e3e67d2a97b4a2ed0fe957ca1e27b83c245
font_01_sfnt_off0000fc74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC74 10428 bytes
SHA-256: 69b9ca9e404e839e9816c1ba7972eaaf9f0b7beeb55ecb375e45f8b82d4a9eb8

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