Malicious PDF — malware analysis report

Static analysis result for SHA-256 70b67171fa70de42…

MALICIOUS

PDF

81.2 KB Created: 2021-03-20 14:13:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ed0232e36f70b6d82ca416076fed0d99 SHA-1: 1b39dc6d35d7a3d651c7d8f2242d38f38fa30c75 SHA-256: 70b67171fa70de42400d0ea5853962a04521e5ebe8814068420a404c0fb5d888
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an external URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing lure, potentially leveraging embedded JavaScript for malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/award?keyword=diferenca+entre+texto+expositivo+explicativo+e+argumentativo+pdf
    • http://fikosarodone.medianewsonline.com/calisthenicmovement_beginner.pdf
    • http://abanca-electronica.com/el_vendedor_mas_grande_del_mundo_og_mandino_personajes4zxuh.pdf
    • http://vakekaninu.iblogger.org/airtel_live_tv_app_java.pdf
    • http://komarovskii.xyz/xibumepakenobowidilosudepouq3.pdf
    • http://hocostyle.ru/jazutu24cgj.pdf
    • http://hq-cleartv.info/honda_lawn_mower_shop_manualjqgi1.pdf
    • https://felonuwonab.weebly.com/uploads/1/3/0/8/130814100/a37e201fc65f04.pdf
    • https://dudasajaje.weebly.com/uploads/1/3/4/3/134362454/6836833.pdf
    • https://jatevabuxises.weebly.com/uploads/1/3/5/3/135382810/aa74129f0.pdf
    • http://internet-babki.ru/moog_sub_phatty_manualz90zi.pdf
    • http://fontawesome.iohttp://fontawesome.io/license/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/davolazupivowi/happy_despicable_me_2_piano_sheet_music.pdf
    • http://xiniwipilanaju.atwebpages.com/genetic_algorithm_essentials_kramer.pdf
    • http://fetavuxoze.epizy.com/2005_nissan_altima_service_engine_soon_light_codes.pdf
    • http://xaramoturowuf.rf.gd/migeruzegamamuviwa.pdf
    • https://s3.amazonaws.com/zijivevip/36198942062.pdf
    • http://vepawipexujobok.epizy.com/rinugukamatejelibasu.pdf
    • https://uploads.strikinglycdn.com/files/e58274e0-db50-4b79-bcfa-c75afb661b75/how_do_you_convert_mini_dv_tapes_to_dvd.pdf
    • http://keregimuw.onlinewebshop.net/35679097300.pdf
    • https://uploads.strikinglycdn.com/files/bf328174-aac4-42af-b866-f84b925c4139/fluke_networks_intellitone_pro_200_lan_toner.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efb8.bin
3ea6e0e4d3b7d0f8b33d4793e23f30cc5ca07ecfc2695b02cb41cb8da563dde3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB8 1728 bytes
font_01_sfnt_off0000f7d5.bin
ab5db2b190403cf34619ab30a40943f3d94615fba930740e8762a8e3ab4d22a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D5 5604 bytes
font_02_sfnt_off00010ae5.bin
d46b093deb1a230f541260d24e658124a58000ea4732884c01acbfa5b4fe99dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AE5 13844 bytes

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