Malicious PDF — malware analysis report

Static analysis result for SHA-256 69fbf6733530ba8f…

MALICIOUS

PDF

77.9 KB Created: 2021-03-06 12:04:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e65104eb63d867f6ee5a9192d1f90427 SHA-1: 79dfb37f95d485bd0e0c441e4a8f395094eeae6f SHA-256: 69fbf6733530ba8f2f5d9e8b95c9549b18396662eee240cdf3f3a008ef18771f
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 a machine learning classifier and ClamAV, which identified it as a phishing trojan. The document contains an embedded URI that directs the user to a suspicious domain, likely to deliver a malicious payload or phish for credentials. The presence of an external URI and the nature of the ClamAV detection strongly suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://lozipotod.ru/aws?utm_term=what+is+the+ethnic+makeup+of+washington+dc PDF link annotation
    • http://kernig.store/20238571208wzpf9.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/cVyvOrz/motuzuwirudonapimad.pdfIn PDF document text
    • https://cdn.sqhk.co/savujegu/jcbgfge/temuxapoxanipojisagug.pdfIn PDF document text
    • http://koreatop.ru/vonatajumab3iery.pdfIn PDF document text
    • https://cdn.sqhk.co/kakapoxavu/YhewUzG/84805781478.pdfIn PDF document text
    • http://gabupexijek.22web.org/59496423516.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/fniixJt/24581106498.pdfIn PDF document text
    • http://itagreen.fun/nusitesekuvoludolivfmedq.pdfIn PDF document text
    • https://cdn.sqhk.co/karopepagu/cgU0gzs/jiwigedalofomemabogili.pdfIn PDF document text
    • http://rollernefrit.xyz/cambridge_10_test_3_reading_answers0i38r.pdfIn PDF document text
    • http://proita.space/karokawofatifizusulawhp6s9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/catholic_school_uniform_store_omaha.pdfIn PDF document text
    • http://ditipeso.epizy.com/circuit_court_case_information_fairfax_county.pdfIn PDF document text
    • http://suniwuvujibo.epizy.com/calculus_2_textbook_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/1948439435.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62ca3db1-85a3-4b9d-b687-ac71bded1c9c/49903088044.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a3007ac-fa35-4d4a-83dc-35acee6afe66/summary_of_dork_diaries_10.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4dda8f15-6325-4167-9b96-01bb7c645b5e/57425380391.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/tracker_app_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0edf0272-3e51-4030-92d7-30f7d130e230/how_to_solve_for_half_life_in_math.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/foam_core_pvc_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/lowal.pdfIn PDF document text
    • http://zemoxatovasoga.rf.gd/2503300542.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b8560c3-5036-4e7e-bc7a-f985125e85f6/37336686845.pdfIn PDF document text
    • http://jajapelemazibog.rf.gd/solenoide_campo_magnetico.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_off0000f1dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DC 5608 bytes
SHA-256: 78af78417a9ffcd97a98861c71882f701c9b13b760037a787a3ad81cba915ef1
font_01_sfnt_off000104f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104F1 10788 bytes
SHA-256: 37cbaab46c71fceac744884a8a8499b41549e4cc9df73cd591bd2a65bb8d586b

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