Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e4fce69d4e5665…

MALICIOUS

PDF

91.8 KB Created: 2021-04-02 01:21:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f9335c62fe4ad5a0649fb312a6cbe2ee SHA-1: 1f3ae9bbc8f80c6935beb26cc9b61b9062ac5014 SHA-256: e5e4fce69d4e566541346914f23cff7ff00396c833d84d14b9da143ae5b1fbb2
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 0.9964

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://golowaki.ru/123?utm_term=neuralink+white+paper PDF link annotation
    • http://lnstagramsupportingcenter.com/video_er_professional_firefox_freegcdto.pdfIn PDF document text
    • http://helplnstagramcontact6088758.com/how_to_calculate_transformer_for_led_lightsrphix.pdfIn PDF document text
    • http://bazis-rostov.com/organic_chemistry_1_practice_final_exam0pabu.pdfIn PDF document text
    • http://rubewox.sportsontheweb.net/can_i_use_my_oven_like_an_air_fryer.pdfIn PDF document text
    • http://hookup157.fun/button_onclicklistener_androidnq2ik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a690b3e5-2833-46c1-8953-948d336d5d49/89079823219.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/logitech_k400_plus_mac_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/78410998688.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebbffc5b-3193-4562-8aa6-84ee02b6e357/is_theory_test_difficult.pdfIn PDF document text
    • http://sutawezazijarof.rf.gd/66216280554.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/022c01fa-1a91-4c05-8412-6887ff5122f5/4432368402.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca360b7e-5e33-4112-9aea-aa06137f332a/40138254600.pdfIn PDF document text
    • http://piwukoge.rf.gd/pibakolepe.pdfIn PDF document text
    • http://vafikozokus.rf.gd/redelolizezufonobajajanus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baa545aa-1064-43cc-be3d-d276333c4610/18897595369.pdfIn PDF document text
    • https://a39ac558-8fe8-437d-9e10-dc9402d6cb9c.filesusr.com/ugd/1ebe14_9ae5d8ec23834788b87e5d846e0c2580.pdf?index=trueIn PDF document text
    • http://taberadajip.atwebpages.com/8002214773.pdfIn PDF document text
    • https://s3.amazonaws.com/waduzirader/happy_birthday_sheet_music_guitar_tab.pdfIn PDF document text
    • http://wipupafe.rf.gd/treatment_of_hypothyroidism_in_pregnancy_nice_guidelines.pdfIn PDF document text
    • http://zijedan.atwebpages.com/el_poema_de_atrahasis.pdfIn PDF document text
    • https://19e6fc83-c281-4d06-93fd-e8b16a02b90a.filesusr.com/ugd/ce5d00_62605eac17ae43009b2df4f0b7fcd816.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/liralobagifewirarefe.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/kofeguvugegopazozego.pdfIn PDF document text
    • http://gagolabirej.atwebpages.com/cuestionarios_ser_bachiller_2020.pdfIn PDF document text
    • https://f238abdf-92e3-4651-90df-65b6e8a648d9.filesusr.com/ugd/99965f_872889f15e09411fab6aa27fbeafc8f9.pdf?index=trueIn PDF document text
    • https://34e2f0dc-0077-42bd-a047-efa2502e92af.filesusr.com/ugd/8a05ec_7f5de91ed67c444da07a9dae32abe580.pdf?index=trueIn PDF document text
    • http://jetokapexel.epizy.com/serial_number_adobe_premiere_pro_2.0_gratis.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_off00012621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12621 4852 bytes
SHA-256: 3e7a5987b54581bfcfe2ef895fd1f9ce2ff195e5505e0a703de6d73cd0fca876
font_01_sfnt_off000136b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136B2 12300 bytes
SHA-256: 893c7580990c2b06df0bd0e90b615bfc839eb846acbef9d4289dab0da5813df5

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