Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf07f0ada26a3daa…

MALICIOUS

PDF

81.5 KB Created: 2021-03-10 06:45:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 038cdff0004b7830384f7638855f5509 SHA-1: b0b816256ad6bc2b9d08554f51250cba8b832848 SHA-256: cf07f0ada26a3daa38b66643c8d79f1635fd230257e10fe778f41911c9b831f9
96 Risk Score

Malware Insights

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

The PDF contains embedded URLs and heuristic firings indicating malicious intent, specifically a phishing lure disguised as a Bible resource. The ML classifier and ClamAV detection strongly support this assessment. While no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://maypoin.ru/aws?utm_term=bible+nasb+version+online PDF link annotation
    • http://folejaf.mypressonline.com/zalokuvopizuwonotib.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501367/normal_6002a7a26d8d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408589/normal_5fec1886e4710.pdfIn PDF document text
    • https://cdn.sqhk.co/widexerun/ichecgg/mudovolonetepe.pdfIn PDF document text
    • https://cdn.sqhk.co/nizekidido/ObjdGre/4649317910.pdfIn PDF document text
    • http://kubosikavudux.mygamesonline.org/kansas_carry_on_my_wayward_son_song_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/baradudapati/AiabL0U/38687184097.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387050/normal_60246f60f2548.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449771/normal_5ff329bc4c24f.pdfIn PDF document text
    • https://cdn.sqhk.co/suxunuke/druieWk/twitter_coin_master_tiradas_gratis_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412891/normal_5fe0a7fcd8d59.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/13704753-b74a-4439-a6c4-6e77fa292149/why_wasnt_there_a_city_of_ashes_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c54d9fd4-4428-4e7e-b999-6756af90a719/microlife_bp_monitor_error_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83d8206a-4907-40e6-bcd9-c74fda72cdb0/what_is_a_good_example_of_a_verb_phrase.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbe8b909-3cce-40d9-9bea-2e42fa57bd08/sims_3_custom_worlds_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41ccc03d-5caa-40fe-b389-6798454e86c8/do_jehovah_witness_sing_hymns.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/856d31de-a81a-437b-a2dc-be749cc61e0f/zimag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/854aa9d9-44bb-4578-8e59-631ce84f111d/what_exercise_gets_rid_of_belly_fat_fast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70004148-03c5-4cfb-879b-a191635f9284/cloro_tabla_periodica_numero_de_protones_neutrones_y_electrones.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff58c14c-8343-485a-8a38-8d1b0bbf375a/77093891128.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e28fd46f-b89a-411a-b243-27766d29a086/how_to_connect_bose_solo_5_remote_to_samsung_smart_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f65c743e-d8a2-41f8-8ff2-93b6cdc0b5fb/how_to_use_turtle_beach_x12_on_xbox_one.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b2df0c8-4733-47de-9394-98ec9a6b33ff/sujapazusafijoxunufujog.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f58f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF58F 4636 bytes
SHA-256: 4aa995bd3541dfaac0333da5290051512223bc49f3292cd2a12d22dc476860a0
font_01_sfnt_off0001054a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1054A 11096 bytes
SHA-256: f416852ca97cb7e21bb9baf22ab97e005c3cbc54730f29978f4733c745a81c53
font_02_sfnt_off00012a9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A9F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3