Malicious PDF — malware analysis report

Static analysis result for SHA-256 769bc83ebd50fc43…

MALICIOUS

PDF

72.9 KB Created: 2021-03-02 21:45:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7a1a4a0aa53dd20f4369026bff3ecbc6 SHA-1: ffc067d1787f649925d69d0bd1ca9d4aed4dac81 SHA-256: 769bc83ebd50fc43745005eb17a933ae612317d9537b7fe087b8f3e3ee8d9501
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/award?keyword=mixer+alesis+multimix+8+usb+fx+usato PDF link annotation
    • http://sokegex.mywebcommunity.org/78864700081.pdfIn PDF document text
    • https://cdn.sqhk.co/subilikiwi/eWio1gj/smashing_the_battle_mod_apk_android_1.pdfIn PDF document text
    • http://wivaserana.mywebcommunity.org/positive_thinking_techniques.pdfIn PDF document text
    • http://fudomux.22web.org/tetami.pdfIn PDF document text
    • http://ronerikasov.22web.org/baxaxarus.pdfIn PDF document text
    • https://cdn.sqhk.co/simunenij/PgdBhen/siterulezivawovumu.pdfIn PDF document text
    • http://pavedewono.iblogger.org/what_is_the_cottage_law_in_texas.pdfIn PDF document text
    • http://kujunat.medianewsonline.com/fimaxukisu.pdfIn PDF document text
    • https://xatuguje.weebly.com/uploads/1/3/1/8/131856293/jofuruvitamufu_gogugajawu.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/Lurgf3R/wolf_sub_zero_customer_service_phone_number.pdfIn PDF document text
    • https://wufezaju.weebly.com/uploads/1/3/0/7/130738917/kurog.pdfIn PDF document text
    • https://cdn.sqhk.co/zoluxoni/X5jc7um/dancing_road_color_ball_run_jugar_online.pdfIn PDF document text
    • https://gilurumujeluzem.weebly.com/uploads/1/3/1/8/131857598/zakinufa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lumuwejonalar.epizy.com/53494605359.pdfIn PDF document text
    • http://dofemuxu.rf.gd/cheap_thrills_movie_480p.pdfIn PDF document text
    • http://kawobos.rf.gd/724806907.pdfIn PDF document text
    • http://rutotonofawe.rf.gd/delorme_inreach_se_login.pdfIn PDF document text
    • http://gaxilitexu.onlinewebshop.net/67082349481.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_off0000e0c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C5 5320 bytes
SHA-256: 0e742957efe3e41521c1ec47736a6dea05ebe68b495e0e0028bf1733fb09e79c
font_01_sfnt_off0000f2d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D1 10448 bytes
SHA-256: 89862cef3f68ad0491f50c86193c84b8e5f3b8ecf64f595c37a74d84d14107df