Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49b744a8c4fc307…

MALICIOUS

PDF

74.6 KB Created: 2021-01-30 14:46:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 73587f8b0de8416cb6071535ae0a035c SHA-1: 9d0ada6ffb60ee7f001338a1f953ecf3e9d314cf SHA-256: e49b744a8c4fc3079bdea4a927606dc2b86a9d66a545652c18399073340232b5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jottigo.ru/wb?keyword=spider%20hero%20superhero%20fighting%20apk%20mod PDF link annotation
    • http://sparzha.club/kexifasedepukunegx32bk.pdfIn PDF document text
    • http://bt-management.website/jlab_neon_wireless_on-_ear_headphonesttsil.pdfIn PDF document text
    • http://bewugexujiz.iblogger.org/online_admission_form_pune_university.pdfIn PDF document text
    • http://onlinetyz.xyz/macroeconomia_michael_parkin_11_edicionc1lfm.pdfIn PDF document text
    • https://sewizafisebe.weebly.com/uploads/1/3/1/4/131437566/sarawetitewug_burivegidobilid_podoto.pdfIn PDF document text
    • https://jizojalagakamu.weebly.com/uploads/1/3/4/8/134886497/zawov_gefasexubepesep_kebuk.pdfIn PDF document text
    • https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/jizabo-gurevokozu-peluvurusi.pdfIn PDF document text
    • https://vebajixumese.weebly.com/uploads/1/3/4/4/134483039/medab_tetumijoda.pdfIn PDF document text
    • http://carbags.site/super_crafting_and_building_2020_for_pcw5kaz.pdfIn PDF document text
    • https://binigikuvoloxog.weebly.com/uploads/1/3/5/3/135332024/rewojobeduson.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/besafefaf/179363630.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/basic_confidentiality_agreement_template_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/41766033947.pdfIn PDF document text
    • http://safuzidavoje.rf.gd/sisazukekebu.pdfIn PDF document text
    • http://kosuvoz.epizy.com/talulovusaxenekosi.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_off0000e053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE053 5592 bytes
SHA-256: b4f14caa413e432bf706a1e06b6696192bc8d2d4542b1dd4068b63863bb29703
font_01_sfnt_off0000f32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32F 13200 bytes
SHA-256: b05141dbaac5e0b11705bb8bb3ad85f88eae6a3922e6194d4f90dc9679ced062