Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b32ab2f7b21bb2a…

MALICIOUS

PDF

68.8 KB Created: 2021-02-08 00:56:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e94df82ccf25fc6116e6168c0b6fbe6b SHA-1: 9a12e3af8d7f137783ff5ca5343cc1e951264594 SHA-256: 7b32ab2f7b21bb2aefa0b0b64ca0dd41089cf25fd3a9c04476ed08199bba2b16
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://leonvi.ru/aws?utm_term=tensile+test+lab+report+objective PDF link annotation
    • https://vebafuxitupum.weebly.com/uploads/1/3/4/8/134890404/wetesekirutuwijugen.pdfIn PDF document text
    • https://diwowure.weebly.com/uploads/1/3/4/5/134592565/ae39099a200772.pdfIn PDF document text
    • http://intereriia.com/calendar_2021_march_holik9sb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408881/normal_5feaf268d7b3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412767/normal_601cb066728da.pdfIn PDF document text
    • http://proita.fun/az_900_latest_dumps03ynk.pdfIn PDF document text
    • http://enots.space/twilight_saga_breaking_dawn_part_1_in_hindi_480pxidml.pdfIn PDF document text
    • http://capridigi.com/90318524784kty6m.pdfIn PDF document text
    • http://snatural.space/galaxy_shooter_galaxy_attack_adventure_mod1b7vu.pdfIn PDF document text
    • https://sukorason.weebly.com/uploads/1/3/4/5/134578332/7090819.pdfIn PDF document text
    • http://ourfanz.com/card_game_rules_templateiqd6p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412767/normal_5fefbc522c3a6.pdfIn PDF document text
    • https://jadetikoj.weebly.com/uploads/1/3/5/3/135350844/2575562.pdfIn PDF document text
    • http://lnstagramverifiedsbadgesforms.com/stephen_covey_first_things_first_worksheetsunjci.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483855/normal_600c3d08d795d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD048 5152 bytes
SHA-256: 79bedceddeb267ca133538a0231b90aac4d2b8b7c3e2cee8c55b6bec851c7755
font_01_sfnt_off0000e1df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1DF 10668 bytes
SHA-256: 7021d5566b202ec945f20dca8d25834bcd1390d5c12e1247fbcfa5d705ad4485