Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a7988db694a4b51…

MALICIOUS

PDF

69.7 KB Created: 2021-02-26 20:11:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b5ace63bcd886e74ed6e5a0450c2a45a SHA-1: 44c7c4574b1f745a8e8f1adab878f1df1f8a504a SHA-256: 2a7988db694a4b51ebad8bdaed23a41c2a2528c551d0b4b0b9ac0dafbc0863e7
126 Risk Score

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
  • 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://gimoguvi.ru/award?keyword=the+conference+of+the+birds+ransom+riggs+audiobook PDF link annotation
    • http://bewewafip.scienceontheweb.net/can_american_wii_play_japanese_games.pdfIn PDF document text
    • http://natgood.space/moral_education_book_uae_grade_9_answers2zomu.pdfIn PDF document text
    • https://mabaxezo.weebly.com/uploads/1/3/4/7/134766945/75247a3.pdfIn PDF document text
    • https://cdn.sqhk.co/konafomaz/eijPphc/cnc_tools_llc.pdfIn PDF document text
    • https://cdn.sqhk.co/xanodujijefu/hbdoggM/1863_us_civil_war_token.pdfIn PDF document text
    • https://cdn.sqhk.co/baruduwege/elgeoii/19961499039.pdfIn PDF document text
    • https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/4545000.pdfIn PDF document text
    • http://mini-camera-super.club/how_long_to_cook_chicken_thighs_in_rotisserieyug00.pdfIn PDF document text
    • https://wazurewimi.weebly.com/uploads/1/3/4/5/134598950/8864675.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369317/normal_5fef9523f285e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465394/normal_601cdf3f1fa73.pdfIn PDF document text
    • https://zisovubuzuteb.weebly.com/uploads/1/3/6/0/136086112/77a8fb4fdcb9a00.pdfIn PDF document text
    • http://fringigejy.site/pevelirunutafavubaszpb9h.pdfIn PDF document text
    • http://fanisore.sportsontheweb.net/lady_windermeres_fan_full_movie.pdfIn PDF document text
    • http://1xbets-regs.site/177028331487x9oc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ginowane.onlinewebshop.net/zisela.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_off0000c95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC95E 5556 bytes
SHA-256: f53e67f04ef9ab26bf4a0492d81938320ad14b53dbd5038f076e4370ed1bba18
font_01_sfnt_off0000dc0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0F 2504 bytes
SHA-256: c45c161f54ed5a6a79fcf478b5a86094009979c752b3a86bcc65b1be57c83af3
font_02_sfnt_off0000e6f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F6 10068 bytes
SHA-256: 11c03f70b7cdbd8df4bfcef68e387bd97b34b6297e2cb8eb055dca3bccbe03fe