Malicious PDF — malware analysis report

Static analysis result for SHA-256 640a61ff48c4ef2e…

MALICIOUS

PDF

84.6 KB Created: 2021-03-31 01:59:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b5f660e3d677a802d1625f4445030d84 SHA-1: cbad40e667664d590cb5e63b09a374b3bc94ce4e SHA-256: 640a61ff48c4ef2ef22960f7627e868e6f9fcb575813dc3274af7814953c3eea
136 Risk Score

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 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://fokemale.ru/award?keyword=tugas+dan+fungsi+penyuluh+agama+islam+pdf PDF link annotation
    • https://cdn.sqhk.co/pepigovagove/SghwYgc/doloxutatazufajojujusiri.pdfIn PDF document text
    • https://cdn.sqhk.co/vopunokapire/jbyjchb/dumizumuduwowinoraran.pdfIn PDF document text
    • https://cdn.sqhk.co/robimovule/YdMNfgf/60086577205.pdfIn PDF document text
    • https://cdn.sqhk.co/gupetipek/diijijf/super_soccer_champs_2020_free_mod_apk.pdfIn PDF document text
    • http://securityofusersdevicesonline.site/kenawokagagugifogoty2tdh.pdfIn PDF document text
    • https://cdn.sqhk.co/rasufizo/IzKgdid/55172748740.pdfIn PDF document text
    • https://cdn.sqhk.co/vekosozob/RMSHhbD/xikebonaviladizu.pdfIn PDF document text
    • http://olivamebel.com/ms-7778_ver_1.0_motherboard_manualhl7tw.pdfIn PDF document text
    • https://cdn.sqhk.co/zejejofe/rAjjdhi/battle_teams_fps_battle_is_on_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/lediname/ghdgii9/samsung_clp-_310_driver_mac_download.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/juvetaso/96707247428.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/halloween_sheet_cake_decorating_ideas.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/what_percentage_of_the_uk_police_is_black.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/bluetooth_device_for_windows_8_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/75576734186.pdfIn PDF document text
    • http://zisekajoreva.epizy.com/browser_not_working_android_firefox.pdfIn PDF document text
    • http://xazitew.epizy.com/66029235305.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/android_tv_box_antutu_ranking.pdfIn PDF document text
    • http://lepetape.epizy.com/best_stock_android_phones_under_10k.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_off00010f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F50 5412 bytes
SHA-256: 91431057904446c93df88777f58d1039c797fceb92db5f39e878f84f0df27dc3
font_01_sfnt_off000121a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121A1 10556 bytes
SHA-256: 838f3c72ed2486989058aa6e74366d47bf78af40c9154e1e69dcb9bd49ced177

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