Malicious PDF — malware analysis report

Static analysis result for SHA-256 15ac9cb8c6e9de0e…

MALICIOUS

PDF

72.1 KB Created: 2021-02-28 01:41:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 9b152e0bbb1d6c7afb7141abc836a1d0 SHA-1: 95eb9292929c2aadc5b03552fcd0d653bb483d04 SHA-256: 15ac9cb8c6e9de0ea2fc62174afa2fd9726989f6d9745792efab2495f5cc5297
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/award?keyword=how+to+sleep+with+a+broken+leg PDF link annotation
    • https://cdn.sqhk.co/pikuworano/ihdiagj/jetudotimaxikosiradavaki.pdfIn PDF document text
    • https://cdn.sqhk.co/nigezufi/idu3Uhh/zero_gravity_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/lanuniwa/eidUrib/34907611804.pdfIn PDF document text
    • https://bileravufal.weebly.com/uploads/1/3/4/7/134749654/2b30b7f26a1cbda.pdfIn PDF document text
    • https://wiguvizokon.weebly.com/uploads/1/3/0/7/130776253/8f706dedc1.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuxopova/ijjijhf/my_targets_archery_app_iphone.pdfIn PDF document text
    • https://faraguwu.weebly.com/uploads/1/3/0/9/130969294/2479142.pdfIn PDF document text
    • https://balijijileg.weebly.com/uploads/1/3/4/5/134505585/835e73c12163bb.pdfIn PDF document text
    • https://kedaweva.weebly.com/uploads/1/3/4/8/134895813/9736657.pdfIn PDF document text
    • https://cdn.sqhk.co/xunijejozi/lzhaVjN/trials_frontier_cheats_iphone.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/zufaxepixiguxax/galajivatanasole.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/battlefront_2_pc_digital.pdfIn PDF document text
    • http://wubijati.epizy.com/devanahalli_weather_report.pdfIn PDF document text
    • http://gajiwudozu.epizy.com/72877846521.pdfIn PDF document text
    • http://xamewesaz.rf.gd/47815552102.pdfIn PDF document text
    • http://noporotosodapo.epizy.com/backup_viber_messages_iphone_to_android.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_off0000ddcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDCB 5340 bytes
SHA-256: 3b01146129cf8b80c621eccac06ca64c242b280b3648a51f1090444d6000773c
font_01_sfnt_off0000eff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF4 10476 bytes
SHA-256: 95ce060e577cd2019d9caf22ac6652b1ae0dff03ac46ea78f808eccca0d57dd2