Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d93d22829ed5161…

MALICIOUS

PDF

80.3 KB Created: 2021-05-07 04:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b507ef2ae9d1866068b6a1f3e49389c SHA-1: d865d0e24b6b6b271d33bbf0cf90e95fba8992ad SHA-256: 2d93d22829ed5161aa4438f68108fc75fd479e337eec79fb52350e4b74d09732
96 Risk Score

Malware Insights

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

The PDF document contains a link to 'botokaw.ru' which is presented as information about a medical condition, likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious sites, potentially for credential harvesting or further malware delivery.

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://botokaw.ru/strik?utm_term=how+to+tell+if+you+have+a+cyst+or+boil
    • http://hightrade.club/733589091645zihh.pdf
    • http://antonioit.fun/how_to_change_the_size_of_a_picture_in_paintzpqlg.pdf
    • http://dupomixu.iblogger.org/vulawipefe.pdf
    • https://cdn.sqhk.co/netesatova/dzgjcgg/wetofejufuguraninero.pdf
    • https://cdn.sqhk.co/pirujezexod/JibXigT/gokom.pdf
    • https://cdn.sqhk.co/naxaroja/jdgheja/can_you_download_clash_of_clans_on_chromebook.pdf
    • https://cdn.sqhk.co/pedajobu/sjxgcFa/wefiwin.pdf
    • https://cdn.sqhk.co/lupobikud/hbJ9NWg/30553570673.pdf
    • https://cdn.sqhk.co/noviraxat/gZg7Nzq/property_brothers_home_design_game_reviews.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/muvevanepen/35362386772.pdf
    • http://laxizal.epizy.com/49605270315.pdf
    • https://uploads.strikinglycdn.com/files/38e69a2d-ea3a-436d-8846-fcef070c6e34/56878990103.pdf
    • https://uploads.strikinglycdn.com/files/1f9b0323-b79c-444f-8350-f54206b96511/56432921688.pdf
    • http://lirifamagugo.rf.gd/kipoge.pdf
    • https://uploads.strikinglycdn.com/files/94f0bd74-3229-4c84-83f9-7f0464f83aca/mercury_outboard_9.9_parts.pdf
    • https://uploads.strikinglycdn.com/files/e81b6b64-3fe5-4a4e-8ba6-81e2fdfd8cf9/gutenori.pdf
    • https://s3.amazonaws.com/pevarijidasalop/steam_server_status.pdf
    • https://uploads.strikinglycdn.com/files/81704b40-b65c-4617-b1f2-00b5c0cf34f8/why_is_fridge_not_working.pdf
    • https://s3.amazonaws.com/mukut/what_exercises_build_glutes.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_off0000feaa.bin
c11f99cdb4e2bdb9721f5dedeba1f543f8bcf53f00384a5d06e44ae7e12eaf9c
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEAA 5324 bytes
font_01_sfnt_off000110dd.bin
a2a811bcfe6d508062dcedc906001d0bf9a7c21c0e28030aaeab45b57aa2c484
pdf-font-stream PDF embedded font (sfnt) at offset 0x110DD 10236 bytes