Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a24bb4d0d749929…

MALICIOUS

PDF

74.0 KB Created: 2020-11-29 22:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 365dcdbbda120dcea2289f5d6434fafa SHA-1: 1c29ea798eede0d15e680815c35ce623f8c43710 SHA-256: 0a24bb4d0d7499290cd166191045a27a22d5ade6759b7ec89118fb2594abaa19
96 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating an embedded external URI and is flagged by a machine learning classifier and ClamAV as malicious phishing content. The document body, though partially corrupted, suggests a lure related to 'Physics 2 final exam answers'. The primary IOC is the external URL found within the document, which is likely used to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffnew.ru/123?utm_term=physics+2+final+exam+answers PDF link annotation
    • 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/0c118b24-49b4-44d5-bf41-6f639019cd7e/free_online_timers_alarm.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/88626389558.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/kay_home_products_chiminea.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d3f87bd-f977-472e-9a8a-63d0376617a8/how_to_include_bleed_in_indesign.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/768dd614-8991-453e-97d7-5bc94a31f6f9/snow_white_and_the_seven_dwarfs_movie_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/rinegowoxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3d1a46f-7a61-4548-9bff-75877620305e/spot_the_difference_game.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/83396881782.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/140ac03a-0e5b-4795-9ff9-c4664d10d4d1/supow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f1e6357-8739-401a-8f5d-03e5c9af6689/metemesuvorozerigona.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/can_you_transfer_ical_to_google_calendar.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_off0000d5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5FE 5116 bytes
SHA-256: c261ecacc337963ac277bc98cffa98f84122cb646217d62c0ae00691fd6504b3
font_01_sfnt_off0000e72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72E 11292 bytes
SHA-256: 8ca3a6a067fada74c9595088aeceefa79a759d2c6779abafb8d49677928b8aeb
font_02_sfnt_off00010d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D7E 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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