Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3ecdc4169c8481…

MALICIOUS

PDF

73.0 KB Created: 2021-02-17 14:31:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 45494fc98950a280f7f915205e75333a SHA-1: 2c6de0e91d40c409f5f0439be183e7dba94b4444 SHA-256: fa3ecdc4169c84818d99b5d047ee4ee59c4b2dd8978ccb4288e20be9ef18c8ab
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=game+dev+tycoon+guide+android PDF link annotation
    • https://kivogumit.weebly.com/uploads/1/3/1/0/131070776/7775309.pdfIn PDF document text
    • http://vashastrahovka24.ru/921986085987mdlf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421477/normal_601b8eaac54bb.pdfIn PDF document text
    • https://cdn.sqhk.co/dodanadofu/wjg4vhd/gun_shot_timer_online.pdfIn PDF document text
    • http://zoompol.xyz/ubiquiti_uap-_ac-_lryiyom.pdfIn PDF document text
    • http://rating-bookmaker.ru/zowubinivikozanixanzvi.pdfIn PDF document text
    • http://mini-cam1.club/zekoxadawuvedewekapivuy3ho1.pdfIn PDF document text
    • https://cdn.sqhk.co/wepigosogo/eigic11/99652651903.pdfIn PDF document text
    • http://milansit.space/19437635733a7v94.pdfIn PDF document text
    • http://igclienteam.com/44376445711sqa5d.pdfIn PDF document text
    • https://cdn.sqhk.co/litawoxelida/gcqigif/bowling_ball_pro_shops_online.pdfIn PDF document text
    • http://bristol-yalta.run/remumebusaminukesapotok4gw6s.pdfIn PDF document text
    • https://rigivopamakor.weebly.com/uploads/1/3/4/8/134869382/d1194d7.pdfIn PDF document text
    • https://sefusozikoju.weebly.com/uploads/1/3/4/3/134366316/zivegetina.pdfIn PDF document text
    • https://pemanawawe.weebly.com/uploads/1/3/5/3/135320082/bbf31016853f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366017/normal_600fffc3247ab.pdfIn PDF document text
    • http://storefromit.pro/575890316624u7d3.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_off0000e215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE215 5244 bytes
SHA-256: dd86cefdf4d7f288b65964a31bd8e646c973a24827f07d69cc1c381a1d53a281
font_01_sfnt_off0000f3e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E7 10252 bytes
SHA-256: 300c09197eee102b8711874d97420d90f9fafc4cb4fee82ccb46b1c593daf185