Malicious PDF — malware analysis report

Static analysis result for SHA-256 acce3d272f8076d9…

MALICIOUS

PDF

85.5 KB Created: 2021-03-19 15:56:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f383956609365bc2c763b7133132851a SHA-1: dfcd5541d39160ab64e8744920d8890bc7f7051b SHA-256: acce3d272f8076d9041ef4da71c7cac6cb1e45a23ae7ceaafa991f833b42fd6f
104 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'xezojetit.ru', which is likely a phishing or malware distribution domain. The heuristic 'SE_URGENCY_LURE' suggests the document's content aims to create a false sense of urgency to prompt user interaction with the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://xezojetit.ru/award?keyword=from+sabbath+to+sunday+samuele+bacchiocchi+pdf
    • http://xipuxolidumix.22web.org/bunny_live_app_apk.pdf
    • http://puwisagoki.22web.org/3898227568.pdf
    • http://italysummer.fun/how_to_play_catan_expansion_packh094o.pdf
    • https://cdn.sqhk.co/vobipibomuk/cjjgchf/bed_sheet_sets_twin_xl.pdf
    • http://mscredit.info/amazon_echo_owners_manualujnhd.pdf
    • http://business-open.online/jozabuvojekewozujlxz6f.pdf
    • http://shimano-stradic.ru/100413611241n7r7.pdf
    • http://shimano-stradic.ru/prefix_and_suffix_worksheets_for_5th_grade4vhy3.pdf
    • https://cdn.sqhk.co/disumuneriva/sjbyvia/soninofiwuxakofenerojumus.pdf
    • https://cdn.sqhk.co/tosuwukiwate/79nOhfz/78163421275.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pevurevakube.rf.gd/gb_whatsapp_latest_version_2019_april.pdf
    • http://dulawazege.rf.gd/terusapobe.pdf
    • https://uploads.strikinglycdn.com/files/12244982-8295-4129-b640-ce536037f2ce/69339042110.pdf
    • http://nadoxomamepaf.epizy.com/list_of_state_capitals.pdf
    • https://uploads.strikinglycdn.com/files/73b2ff6b-4acc-4209-afe3-b185e6081e93/lusarenabidolutezanogi.pdf
    • https://uploads.strikinglycdn.com/files/4135755b-c184-4636-839b-f175aafcaf18/secrets_to_spiritual_power_watchman_nee.pdf
    • https://9b704b87-3668-414c-a24e-b30400fe0e33.filesusr.com/ugd/51c472_0eb7e8b0e35d4843815d324b70c90169.pdf?index=true
    • http://lotifajabam.epizy.com/alzheimer_fisiopatologia_2020.pdf
    • https://40785fcd-1e5e-4316-9306-5db1d5795eae.filesusr.com/ugd/2f07a1_36c56d047c134038a4f78e5f75d1c5fa.pdf?index=true
    • http://nisuzadusidu.epizy.com/76140746955.pdf
    • http://giratas.epizy.com/50866674930.pdf
    • https://uploads.strikinglycdn.com/files/e97d3870-b5a3-4b75-a08b-3d3dd73690f9/28449219931.pdf
    • https://fa53e508-d88d-41cb-897c-7a5b6f1bfcc3.filesusr.com/ugd/361045_9fabba48780142d88d31bbe04200b794.pdf?index=true
    • https://37991ae0-d72b-4ccf-bf90-288dedd591e7.filesusr.com/ugd/041b56_8875989cd8ab43068e6d5e8ecc563bce.pdf?index=true
    • 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_off00010df0.bin
b3e6a263cb3feed905f6a088aa370173a04d43f889b2a538a2b8e4836404fcbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DF0 5592 bytes
font_01_sfnt_off000120d0.bin
19333c7c94d9af445623157e10828da6dce8a386d9b246a98b503d1cab308faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x120D0 11604 bytes

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