Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa882b662f5d4bb…

MALICIOUS

PDF

76.7 KB Created: 2021-02-13 16:24:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fecfa6e1220f196922c2240a6e18fb0a SHA-1: 25571d91259392112b5a8a2a5a7b019a65c4f04b SHA-256: 0fa882b662f5d4bb26e8c97dafdfbdde155e884d4477ec445ff1ff44e3bedd6c
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=ableton%20live%2010%20full%20crack%20windows In PDF document text
    • https://milavunaxowe.weebly.com/uploads/1/3/4/7/134717052/5430557.pdfIn PDF document text
    • http://vezizulavojunif.22web.org/alaiye_sitralaiye_song_lyrics_in_tamil.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461249/normal_6006007466d7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466398/normal_6022892ab90a4.pdfIn PDF document text
    • http://creamwalls.space/ambala_video_song10plj.pdfIn PDF document text
    • https://pugoxadegile.weebly.com/uploads/1/3/1/3/131379866/b75f9.pdfIn PDF document text
    • http://discout.online/c_dictionary_contains_key_performances4z5n.pdfIn PDF document text
    • http://amsidisi.xyz/madatepoki3ocxd.pdfIn PDF document text
    • http://zdorovienashevse.xyz/catholic_wedding_ceremony_booklet_template_free84up8.pdfIn PDF document text
    • http://jirafka.space/licorne_crochet_tutofe8da.pdfIn PDF document text
    • http://e-sparks.ru/76864147369kumdg.pdfIn PDF document text
    • http://tufataf.22web.org/16851456714.pdfIn PDF document text
    • https://mitalukomajamo.weebly.com/uploads/1/3/1/4/131437074/voxifefupuwuvil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491925/normal_600b3956d0b12.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tifiponarem.rf.gd/sajimiwinogakexeboxixi.pdfIn PDF document text
    • http://minudumira.rf.gd/engage_ny_ela_grade_3_2017_answers.pdfIn PDF document text
    • http://wurozuvejesubot.epizy.com/alarm_clock_dock_for_android_phone.pdfIn PDF document text
    • http://vezelivami.rf.gd/40771660720.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_off0000ee23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE23 5552 bytes
SHA-256: 4db6ba7565e1b4a57cd1c4fef9b25bc68747c1d6519e1e742283e087f5a2f46f
font_01_sfnt_off00010137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10137 10744 bytes
SHA-256: 5494db423dbad52c5a9b0c2b9936f2b9021d9693705d0216d82e3a3c0d62178b