Malicious PDF — malware analysis report

Static analysis result for SHA-256 12c91c4cfb4d93dc…

MALICIOUS

PDF

70.9 KB Created: 2021-03-03 02:04:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: de3273078a3b28461e3d6f0026bc3eab SHA-1: 811c51e07d22e63796fab9bd9e4a2ebe3b25a700 SHA-256: 12c91c4cfb4d93dcbbe66f3ef9e712a7cd111bbb41e654875da80c813c461ff3
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://jottigo.ru/wix?keyword=mass+effect+andromeda+prima+guide+pdf+free+download PDF link annotation
    • http://itclick.pro/645433743174ntly.pdfIn PDF document text
    • http://wozuwekifebar.iblogger.org/gubani.pdfIn PDF document text
    • http://im-marceting.site/11780616662pi2q5.pdfIn PDF document text
    • http://se-mrush.com/48717701618p43d9.pdfIn PDF document text
    • http://epaytds.xyz/80095834638k4udr.pdfIn PDF document text
    • http://nesobaka3.xyz/orbit_water_timer_station_2_not_workingjxe9b.pdfIn PDF document text
    • http://fewotiza.iblogger.org/62506975240.pdfIn PDF document text
    • https://nigipesifagezeb.weebly.com/uploads/1/3/1/4/131411762/8511864.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/pezofut/australian_childhood_obesity_statistics_2018.pdfIn PDF document text
    • http://sowezenuvafe.epizy.com/munchkin_speed_bottle_warmer_reviews.pdfIn PDF document text
    • http://nulabede.epizy.com/congruent_supplements_theorem_worksheet.pdfIn PDF document text
    • http://nodikisiti.rf.gd/blacksad_english.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/vidmate_old_apk_mirror.pdfIn PDF document text
    • http://risumipekalur.rf.gd/29777582059.pdfIn PDF document text
    • http://sewexojin.rf.gd/odia_song_new_dj_2018.pdfIn PDF document text
    • http://pumeluwona.epizy.com/bewavabipesufuduwusa.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/south_african_joint_venture_agreement_template.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_off0000d7e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E3 5572 bytes
SHA-256: b809d52926251eaba6c5b2f0649032e8dec1c62ec6cee4515a8d45ea4664d76d
font_01_sfnt_off0000eade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADE 10432 bytes
SHA-256: 26f308f194c37736a2ad6dde0068ae805db00612242c483d7c2204b6828d9f38