Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6b6ceaca1609739…

MALICIOUS

PDF

76.3 KB Created: 2021-03-12 01:07:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5d280fbd25fc1529ea21964dc3bef5fb SHA-1: 1467689179aa4f41cef6fe1abeb5760a1e7271c1 SHA-256: e6b6ceaca160973962a210d298d8ec4896bb0ed0124fec13bde0dbb8b9a5b749
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9975

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://lozipotod.ru/award?keyword=rapidex+english+speaking+book+pdf+download PDF link annotation
    • https://cdn.sqhk.co/vunebapenuj/ieBihjb/35415816828.pdfIn PDF document text
    • http://kawopewil.22web.org/ehsaas_old_movie_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/jilowepe/iihephi/kunuzolal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/04f22a7d-e134-4a5e-a98a-3774fd91fd3c/sharp_lc52le835u_aquos_quattron_52_3d_1080p_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f89046e3-4554-4825-ad63-86b9a4cbbee4/97296266381.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c758d3d-8d65-44e0-b42c-6a1c56f4efd2/cuisinart_ice_30bc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24b909db-5226-42c5-a5f7-5544c552bd47/51000050468.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86dc1abe-4ef2-4f7f-a733-e4ad23ee55b0/55791129241.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/merip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af725049-e34f-4c51-9bdf-fb1160bd1fa0/57850247053.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/10841442509.pdfIn PDF document text
    • http://rifoxofome.rf.gd/zamotomenudagi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9f2bde1-bd5d-453c-8b63-6f9828583335/what_is_21st_century_literature_examples.pdfIn PDF document text
    • http://divurar.rf.gd/will_there_be_another_book_after_trials_of_apollo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25cdf65a-b412-49d9-99f8-4da58be92f8b/100_main_spanish_words.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58e7eac2-5881-4a2b-949c-dfe2b6ee1db6/pride_and_prejudice_chapter_5-10_summary.pdfIn PDF document text
    • http://funasuruwet.epizy.com/nutonawovujekoto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4987ab11-6843-4f27-aa3b-3ef8821737b3/what_does_it_mean_if_my_gas_stove_is_clicking.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9abe4802-c37a-46c6-a238-5739913456fc/56584311920.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97144f65-1d30-45eb-ae70-4b1f5f81b155/hindi_letters_with_meaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14ae401f-e881-42c7-8f82-70aca24bfd67/sokuxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e26b7a9-6bce-4e9b-8684-63b8c698e281/limipujenuvawakogibu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/930a3687-8bd4-4ca8-8821-ec178f785239/list_the_qualities_of_a_good_team_player.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D0 5284 bytes
SHA-256: cdf721c15cdbd65ba8dfae1d9b8700643ef5cbcfa7d5997a2a59f88bd36c99cd
font_01_sfnt_off0000f9cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CB 10060 bytes
SHA-256: 01b44716279e2fe84a2ee3754fe48388bd93336db69cffeb5f817a338ff2dfe4
font_02_sfnt_off00011c36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C36 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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