Malicious PDF — malware analysis report

Static analysis result for SHA-256 9304b9eebe0791ba…

MALICIOUS

PDF

67.2 KB Created: 2021-03-27 19:19:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 17d8731e68169705555bc1b7b2270b74 SHA-1: 7ca6c550002a5a7324e96c76c5c81e74098b2117 SHA-256: 9304b9eebe0791baf245dbfa586d0c3e94db0b52d0382c30f777273bf1fae46a
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, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains text related to a "2016 nissan frontier owners manual" and the authoring application, suggesting a lure to trick users into clicking the malicious link.

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://bologen.ru/wix?keyword=2016+nissan+frontier+owners+manual
    • http://trendmobile.ru/7533329391wvo67.pdf
    • http://deflecfcvy.best/how_to_install_dlc_on_cracked_gta_51zm1o.pdf
    • http://muzhskoizhurnal.ru/bratz_bunny_boo_logoz2iec.pdf
    • http://interbankdigital.com/19683966764sgpow.pdf
    • http://bloodcraft.online/freddy_5_nights_game_online1pn6h.pdf
    • http://indohealth365.online/gutej05eqt.pdf
    • http://instapriz.online/how_many_ounces_is_a_sonic_blastnnyez.pdf
    • http://silvanozito.online/445497312138dyvy.pdf
    • http://konsalting.info/what_causes_a_red_dot_in_your_eyep8vue.pdf
    • http://nanamojuvimujo.medianewsonline.com/clinical_pathology_and_haematology.pdf
    • http://nanolenka.xyz/sagudeximajodulaputubob1p717.pdf
    • http://disconto50.pro/are_some_psychopaths_goodowe1r.pdf
    • http://carbackseat.site/35425864383p5sbf.pdf
    • http://mattelipsticks.site/botopedokixevasevonesaleenwsh.pdf
    • http://potuduwatolebu.mywebcommunity.org/mudirajaxatu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rupilozomu.epizy.com/nespresso_inissia_manual_uk.pdf
    • http://purevaxa.epizy.com/codycross_answers_group_41_puzzle_2.pdf
    • http://bejanifezilo.atwebpages.com/kenmore_refrigerator_106_ice_maker_not_working.pdf
    • https://s3.amazonaws.com/pukaridimupo/personal_development_plan_for_work_examples.pdf
    • https://s3.amazonaws.com/rolefosiju/viwuxatesef.pdf
    • https://s3.amazonaws.com/fobupojowojon/18672955277.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_off0000cb57.bin
64fc70cf8ade9dad47fd559697bc10d941b08adb5980d20e6d6758555b6d963a
pdf-font-stream PDF embedded font (sfnt) at offset 0xCB57 5392 bytes
font_01_sfnt_off0000dda8.bin
229972206cf13e213f713424790ca69f59c85149372979b6a6c9a173bd937963
pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA8 9936 bytes