Malicious PDF — malware analysis report

Static analysis result for SHA-256 14605aef8f37462f…

MALICIOUS

PDF

63.1 KB Created: 2021-02-19 23:06:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a99d93987e21c490f91028b869b87bf SHA-1: beaf04af2f3e79c463e648822b7b53b4ed349a9e SHA-256: 14605aef8f37462f05683c48ac12da7b8d485873859b93fdcbe9c17188f8dcad
96 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, one of which is directly referenced by a heuristic as an external URI. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, contains text related to streaming, suggesting a lure for phishing or malware download. The presence of embedded URLs points to an attempt to redirect the user to malicious sites.

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://leonvi.ru/wix?keyword=%25C3%25A8+arrivata+la+felicit%25C3%25A0+streaming+ita
    • https://cdn.sqhk.co/wajuletixex/jeu08ig/fepovaf.pdf
    • https://cdn.sqhk.co/bigulikexupa/hjt5Tha/slime_background_free.pdf
    • https://cdn.sqhk.co/pobumepova/HWNhjeZ/globe_suite_light_bulb_offline.pdf
    • http://sokolov.fun/anatomie_l_appareil_respiratoiredvri8.pdf
    • https://cdn.sqhk.co/jokutevek/dSgihfO/codic_start_to_code_learn_programming.pdf
    • http://trokot-roznica.xyz/auto_like_android_apps2tgz5.pdf
    • https://cdn.sqhk.co/jigixomavola/aeieeij/tanepozosiwuj.pdf
    • http://italiabeach.space/jonujevogodefipew6izie.pdf
    • http://islandlandscapesbb.com/rududuxapavesalutolemoxepqq2v3.pdf
    • http://fakadod.iblogger.org/happy_birthday_song_piano_sheet.pdf
    • https://cdn.sqhk.co/xevowuto/ahbidzO/paypal_mastercard_reloadable_prepaid_debit_card.pdf
    • http://confirmyourverifiedbadge.com/zepunezuzisowofdojee.pdf
    • https://cdn.sqhk.co/lijipatalenu/jvEwfhe/instagram_captions_for_mirror_pics_with_friends.pdf
    • https://cdn.sqhk.co/sebazisop/cEghhhd/light_up_keyboard_and_mouse_wireless.pdf
    • https://cdn.sqhk.co/jivazufevi/cjc32Ye/world_war_series_harry_turtledove.pdf
    • https://cdn.sqhk.co/girewobo/MjHUibF/56083164569.pdf
    • https://cdn.sqhk.co/daxerarugak/hKBgihi/pulokowif.pdf
    • http://6gusevshop.space/3354494425573b1j.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://moxuwujapuj.rf.gd/13602888543.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_off0000b9b3.bin
0b26ae2f1faa933e648e9da1222b86db1349e791da265ec2a2b7f104a8b80d0d
pdf-font-stream PDF embedded font (sfnt) at offset 0xB9B3 5476 bytes
font_01_sfnt_off0000cbb8.bin
7c5dbbd39d078202a78f30b23ad6da708342248e04fc99c1404b91e55f8d35a0
pdf-font-stream PDF embedded font (sfnt) at offset 0xCBB8 10068 bytes