Malicious PDF — malware analysis report

Static analysis result for SHA-256 a96ac9508a498bbc…

MALICIOUS

PDF

75.9 KB Created: 2021-02-14 11:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1824f429e6f3b77a14d66aaffed30beb SHA-1: 27cf8ce484275b4cbaa5461bf1efdce088199618 SHA-256: a96ac9508a498bbc9924bbabe7d6f20afc0a68f415e6881d07735a03ba7d28c0
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://seumenha.ru/123?utm_term=prospect+park+mn+crime PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4379362/normal_5ff07fb5bebca.pdfIn PDF document text
    • https://cdn.sqhk.co/zupololano/thcPz1e/how_to_register_my_tashicell_app.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/3jiojdh/snake_worm_zone_2_io_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/beratinuga/gfiiig8/wobes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417305/normal_6000bdc912cfe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472221/normal_5fd6f9f6dcc54.pdfIn PDF document text
    • https://cdn.sqhk.co/jisepozidis/jhejb5U/bazifit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481663/normal_6026283048dbf.pdfIn PDF document text
    • https://cdn.sqhk.co/ranemagesoga/MBjjgiX/connecticut_play_4_daily_numbers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://govatojajij.epizy.com/b_d_full_form_medical.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/remote_control_android_via_wifi.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/scroll_horizontal_recyclerview_on_button_click_android.pdfIn PDF document text
    • https://s3.amazonaws.com/sedowedi/4381483468.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/34227395126.pdfIn PDF document text
    • http://zotinulimoruv.rf.gd/70059264803.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/deck_the_halls_sheet_music_trombone.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B0 5112 bytes
SHA-256: 5b3614ec56b9cc91969b0b3c2d0bb45da9f81c62dbd27f79dc0fdcf8a8cfcd79
font_01_sfnt_off0000fb01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB01 11976 bytes
SHA-256: 6b794cb900ead7bb0d0bdeb241b162a3bcfbe07b22167a2b90028858782932e5