Malicious PDF — malware analysis report

Static analysis result for SHA-256 aef9e489815adfe2…

MALICIOUS

PDF

76.5 KB Created: 2021-02-28 08:05:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 6ae3c3fc8f96e3811d095021f4ae080d SHA-1: e2ae4669374ae854762ae8be6e732920318fdc74 SHA-256: aef9e489815adfe28f855fc635f00acd3ef100a59b5ae3d330a97d22256b06f1
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a search result, likely intended to trick the user into clicking it for phishing purposes. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF structure itself contains an external URI pointing to a suspicious domain. No scripts were extracted, but the presence of a phishing URL is sufficient to classify this as a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/award?keyword=how+do+i+set+up+my+total+gym+xls PDF link annotation
    • https://cdn.sqhk.co/gugapedulob/eAjfqje/63318102668.pdfIn PDF document text
    • http://kavelizopepi.mywebcommunity.org/soxirimazadewejesexiz.pdfIn PDF document text
    • http://3bureaureport.info/bulleya_sultan_songsusmuo.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/dVjgJge/little_mermaid_straw_cup.pdfIn PDF document text
    • https://cdn.sqhk.co/bojowagawire/HjfWtih/21163998754.pdfIn PDF document text
    • http://avto-document.site/64162533265p3mz9.pdfIn PDF document text
    • http://confirmationhelpcenter.com/parabody_350_home_gym5eayn.pdfIn PDF document text
    • http://worldhold.online/18096633254w0i6k.pdfIn PDF document text
    • https://cdn.sqhk.co/manaruparil/b9ljfjf/44054460148.pdfIn PDF document text
    • http://setopin.mypressonline.com/xomivarijig.pdfIn PDF document text
    • http://mumolazesinidix.getenjoyment.net/nutrition_care_process_pes_statements_examples.pdfIn PDF document text
    • http://leftoutclub.com/80451304352caru1.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/iaOjdQp/toss_the_buddy_throwing_game_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://livirava.atwebpages.com/history_alive_online_login.pdfIn PDF document text
    • http://widifusi.myartsonline.com/fuvewupikojevifuvakemiz.pdfIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/memuw.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/best_washing_machine_repair_service_in_hyderabad.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/aurora_hdr_2019_free_fullversionforever._com.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/6962954108.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/83559519852.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/chithari_therikkunna_chinthakalil.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_off0000ed2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2B 5408 bytes
SHA-256: af6a74c7da5214c3846b61a205b6bd530ac7548bcc9383bceeb005447d6ef8bd
font_01_sfnt_off0000ff9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF9D 10872 bytes
SHA-256: 6166469b202dcc4551b38be72f7af9d0e4dba43d9f1de631052f0664bf11a93a