Malicious PDF — malware analysis report

Static analysis result for SHA-256 213e88264805f0f6…

MALICIOUS

PDF

65.6 KB Created: 2021-02-22 06:05:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bb201ffc3c89dfcebbe27a98358ca2bb SHA-1: 8a807f6ddf8e7ec77fafc2a07bc18cd9bae1fa09 SHA-256: 213e88264805f0f6f74995a7b72af9de726cbf5624856b73ef9e27c72a20d6e6
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://baarspo.ru/wix?keyword=life+cycle+of+stars+worksheet+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366018/normal_602c31e76d614.pdfIn PDF document text
    • https://porujeworor.weebly.com/uploads/1/3/2/8/132814718/gorefatabi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478687/normal_5ff56effa00b2.pdfIn PDF document text
    • http://kojaruw.iblogger.org/the_crown_season_1_episode_4.pdfIn PDF document text
    • http://kidepokapila.22web.org/78301526644.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446390/normal_6021c1c1c91d1.pdfIn PDF document text
    • https://xakolino.weebly.com/uploads/1/3/1/4/131453712/8835234.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428039/normal_601e0aff87a22.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461748/normal_5fe55ba1f33ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425760/normal_600d8a2016965.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368977/normal_5fd6d2f03618b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463034/normal_5fd2f576779b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365606/normal_5fc7edbbd92db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379032/normal_5ff76ac099395.pdfIn PDF document text
    • https://fixojifuxupelo.weebly.com/uploads/1/3/0/8/130814076/37ca8f86fed.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mujunego.epizy.com/gapowijuf.pdfIn PDF document text
    • http://kobaporosonunaw.rf.gd/75799062689.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_off0000c544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC544 5168 bytes
SHA-256: 64e90e5a44e730e5049d14304a6bff3b3963dcc8874156057c3679f3591bcefa
font_01_sfnt_off0000d6f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F5 9952 bytes
SHA-256: 36db5337f8a6fde6d41f15e7d2a89f341b9e0dbec1b7415369ce44e30d530f1f