Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebf159b243936747…

MALICIOUS

PDF

85.8 KB Created: 2021-03-03 22:07:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bfcd9cc467d7a66fd57782861301d4a SHA-1: d8916b6fcb8c3b5f2ae4cc4bb6eb0c63dae67af4 SHA-256: ebf159b243936747e30524635024929c99474717ffc37f934542de4c853bc011
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high probability of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to contain metadata related to its creation, but no direct instructions or lures are discernible from the readable portions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/123?utm_term=infinity+gauntlet+thanos+snaps+his+fingers
    • https://cdn.sqhk.co/xokipuxat/dA7SjhL/startpage_vs_duckduckgo_2019.pdf
    • https://cdn.sqhk.co/zidomirit/RwzShgs/unscrambler_and_scrabble_word_finder.pdf
    • http://meserowogawak.iblogger.org/eliptico_movement_perform_e3.pdf
    • http://stalekost.site/space_armor_2_mod_apk_obbe53vb.pdf
    • https://cdn.sqhk.co/pafevola/iigRWje/video_for_likee_tik_tok_trending_2020.pdf
    • https://mafetoga.weebly.com/uploads/1/3/0/8/130874134/gedafa.pdf
    • https://cdn.sqhk.co/votezevon/gLBFmgf/vupapuzigagapek.pdf
    • https://goginaderexikez.weebly.com/uploads/1/3/5/3/135306094/tekawijizebidilida.pdf
    • https://kererivodukeje.weebly.com/uploads/1/3/5/3/135303009/33a0b48e.pdf
    • https://jigibomafife.weebly.com/uploads/1/3/0/7/130738667/lolekudawotosux.pdf
    • http://2gusevshop.space/how_to_cook_potatoes_in_electric_pressure_cookere2ffr.pdf
    • http://idealicaufficiale.website/is_it_illegal_to_drive_without_plates6j711.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lesiterifok.epizy.com/list_of_german_dative_verbs.pdf
    • https://s3.amazonaws.com/risalenefazozo/kabuwekeserujudi.pdf
    • http://wekaniloba.rf.gd/what_does_managerial_accounting_information_mean.pdf
    • https://s3.amazonaws.com/xaliwalufoguni/74840836547.pdf
    • http://vakakumiwizexoj.epizy.com/fl_studio_11_producer_edition_full_crack_download_mac.pdf
    • https://s3.amazonaws.com/tabobujimo/sequin_formal_long_dresses.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_off00011314.bin
afbad95578dea8e2cb389390454bb367d67ba4c20208914dd3fd640e80e0702e
pdf-font-stream PDF embedded font (sfnt) at offset 0x11314 5200 bytes
font_01_sfnt_off000124d1.bin
84b22cf3768c8516ecebd2780f9b82f40b89454f4853c482ab97c79d715f7f19
pdf-font-stream PDF embedded font (sfnt) at offset 0x124D1 10892 bytes