Malicious PDF — malware analysis report

Static analysis result for SHA-256 afc8aae434b9a9ba…

MALICIOUS

PDF

85.7 KB Created: 2021-04-03 14:58:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4519caa65578d647b9007d44f0652144 SHA-1: 7a7fb8046b4751a81ee1af6c1a54748b3b31fb00 SHA-256: afc8aae434b9a9bad8a7e556df7580fe445be7895bcae3d5aa21cc2057d6f3db
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains multiple embedded URLs pointing to potentially malicious domains, suggesting it is used to redirect users to phishing or malware distribution sites. The presence of an external URI heuristic further supports this, indicating the document's intent to interact with external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/strik?utm_term=is+an+object+thrown+upward+in+free+fall
    • http://thefortykuti.com/jbl_flip_3_bluetooth_speaker__get_tws_mini_earpod_freek1hnm.pdf
    • http://tevoriveterusof.22web.org/94333143949.pdf
    • http://dontbeshy.xyz/boss_tu_2_vs_tu_3_bufferoc6wv.pdf
    • http://sallehub.xyz/gramatica_espaola_modos_y_tiempos_verbalesfc3pf.pdf
    • https://famonusowofem.weebly.com/uploads/1/3/4/3/134349488/02f67e3f6c9b53.pdf
    • http://counterman.ru/empires_puzzles_epic_match_3_guide8v96w.pdf
    • http://ideal-it.fun/skyrim_xbox_one_armor_mods_202007ysk.pdf
    • http://get3creditscores.info/xoxoxebabo1xah.pdf
    • http://sanatoriy-izumrudny.ru/42269958268lzt13.pdf
    • http://crawlmqyu.space/992369612690cd7y.pdf
    • http://gouliwer.online/where_is_expiration_date_on_britax_advocate59qzk.pdf
    • https://fikosaxan.weebly.com/uploads/1/3/4/7/134753192/9436388.pdf
    • https://kazowajobizitat.weebly.com/uploads/1/3/0/7/130775795/dusimup.pdf
    • https://labaveboto.weebly.com/uploads/1/3/4/6/134611097/rewodejunusogew.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ad717561-537d-4fe2-9b62-a5da8952cd1b/mibagusa.pdf
    • https://uploads.strikinglycdn.com/files/56ad9f6c-3d4b-40ed-b0b9-11db04af8f3f/how_to_clean_ge_oven_grates.pdf
    • https://uploads.strikinglycdn.com/files/fcc9aa96-0243-49a8-9327-2f7836428c22/mazesexoluwovemexob.pdf
    • http://dusetelonuzaj.epizy.com/12638302641.pdf
    • https://s3.amazonaws.com/tetenifeme/albert_bandura_teoria_de_la_personalidad.pdf
    • http://maboduxivugiv.rf.gd/night_figurative_language_worksheet_key_34-_45.pdf
    • https://s3.amazonaws.com/dafumuxitupav/online_english_learning_course_free_in_india.pdf
    • https://uploads.strikinglycdn.com/files/7c738a36-83be-44c9-b660-17afab7c513c/best_single_cup_coffee_maker_with_burr_grinder.pdf
    • https://uploads.strikinglycdn.com/files/ec431758-b2ac-48c9-8350-3e368fe4393d/xenaxobesej.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_off00011015.bin
ac3a56f8b77e9efeef7f30e5095d40439fdd17a323ea739a85d60427a191dc95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11015 5488 bytes
font_01_sfnt_off000122cc.bin
39eaa0c2a08a306643091e96d2eb76362a8533a4a0f771dbe5b08a0143ca4392		 pdf-font-stream PDF embedded font (sfnt) at offset 0x122CC 11264 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.