Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6d086fa8b992cb…

MALICIOUS

PDF

80.0 KB Created: 2021-03-13 21:25:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff8f1931142f921f9759ef1c2b20aa9b SHA-1: 21fe33f81cac3887f23fe1542eef6366c6db0b88 SHA-256: be6d086fa8b992cb6a810ef0bda2ce667b98d5c8ff90dc8799f98317fecac0b0
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL and numerous other URLs point to external resources, suggesting the document is designed to redirect users to potentially malicious websites. The document body, though heavily obfuscated, contains keywords related to 'cardapio dieta cetogenica pdf', indicating a lure to disguise the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/award?keyword=cardapio+dieta+cetogenica+pdf
    • https://fogufufizanalu.weebly.com/uploads/1/3/0/8/130813948/falidutarob_lagizixexux.pdf
    • http://dumanejixaw.66ghz.com/vigul.pdf
    • https://zawanudodulir.weebly.com/uploads/1/3/1/4/131452903/e146c25d.pdf
    • http://dojaligiwojop.22web.org/20070317832.pdf
    • http://1-bog.ru/bongo_flava_audio_freezhqxf.pdf
    • http://nokojatagi.mywebcommunity.org/boponufodopodazuwebukero.pdf
    • http://yourbigdick.space/73685647417mrz8i.pdf
    • https://cdn.sqhk.co/nekuripafi/eidiaZ4/asphalt_street_storm_racing_mod_apk_an1.pdf
    • http://nejupike.mygamesonline.org/good_r_programming_books.pdf
    • http://wamipivifubape.sportsontheweb.net/39427106927.pdf
    • https://cdn.sqhk.co/dosakupu/gMXrhj0/11645420521.pdf
    • http://fruit-italy.space/winters_bone_movie_trailerno73j.pdf
    • https://cdn.sqhk.co/sigagegijej/azieig8/free_bingo_caller_software_for_windows_10.pdf
    • http://freud.icu/442808430271wjmi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bufijonewufo.onlinewebshop.net/31437769039.pdf
    • http://kewevagisugimuw.onlinewebshop.net/vicks_starry_night_humidifier_use_without_filter.pdf
    • http://nodimetonakijeb.epizy.com/the_essene_gospel_of_peace_the_complete_4_books_in_one_volume.pdf
    • http://raxulifuroroga.epizy.com/the_ultimate_rpg_character_backstory_guide_tg.pdf
    • http://zupitatip.atwebpages.com/sepaneluganebatuvuwujago.pdf
    • http://tuwidapaj.epizy.com/2014_bmw_x3_xdrive28i_manual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f799.bin
ef82ae9f6da3a5bcaa5fe105ededcc98c7c7f4b58c28467f9a663a668bb2fcee
pdf-font-stream PDF embedded font (sfnt) at offset 0xF799 5020 bytes
font_01_sfnt_off000108be.bin
020a793b94759811c1d855650fb39d76e78a468d8cd6820ffb1e1a129ba5cfb4
pdf-font-stream PDF embedded font (sfnt) at offset 0x108BE 13352 bytes