Malicious PDF — malware analysis report

Static analysis result for SHA-256 472ba6a007f96bda…

MALICIOUS

PDF

79.6 KB Created: 2021-03-28 06:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: acbd36853c71790a8c16be7752a8224f SHA-1: 843d019715d3be2eb3b3f993bc606b4d6bf3c578 SHA-256: 472ba6a007f96bda1ad97a4cce358ec92637f4b057b52b90a9d4a11a927bf75f
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a phishing or link-farming operation. The PDF structure and embedded URLs are consistent with techniques used to redirect users to malicious sites, potentially for credential theft or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/strik?utm_term=1500+calories+diet+chart+indian PDF link annotation
    • http://premial.su/how_to_look_at_old_satellite_images_google_mapsp99m6.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/27422533060.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/gfgj2id/41652149010.pdfIn PDF document text
    • http://prostosite.site/44311693908jbkfn.pdfIn PDF document text
    • https://s3.amazonaws.com/makixibawumebol/64290637896.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473432/normal_603d22e44eb6e.pdfIn PDF document text
    • https://cdn.sqhk.co/jarogofef/ShhCLji/gunbird_2_classic_edition.pdfIn PDF document text
    • https://cdn.sqhk.co/kosibowo/ibxibie/74680739605.pdfIn PDF document text
    • http://buviturowugigew.66ghz.com/answer_love_myself_bts_letra_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/inventions_and_inventors_unit_3_worksheet_1.pdfIn PDF document text
    • http://finansi-7.online/how_to_reset_citizen_e820qajvd.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/web_banner_design_psd_free.pdfIn PDF document text
    • https://cdn.sqhk.co/xawobovuji/C5iejc1/15025708995.pdfIn PDF document text
    • http://pshcomonhere.xyz/98171671146utfda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374838/normal_5fcf0d88d4ffc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416140/normal_604815d6ca0ea.pdfIn PDF document text
    • http://noverst.xyz/twilight_by_stephenie_meyer_summarymv5ub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471985/normal_602a59964980b.pdfIn PDF document text
    • http://madewithsunshine.com/sivafilufodidipuqe972.pdfIn PDF document text
    • http://ita-women.space/40867656469rkgal.pdfIn PDF document text
    • http://titanof-filtr.ru/how_to_read_architectural_drawings_uk3xwc6.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/ljggigj/legewi.pdfIn PDF document text
    • http://instapodarok365.site/xodojegumgylm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486963/normal_5ffb4933df50e.pdfIn PDF document text
    • http://inertbhjbj.ru/pathfinder_adventure_path_hellknight_hillorujf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duvufewitopemaw.rf.gd/tekken_8_game_ppsspp.pdfIn PDF document text
    • http://ziwutaje.epizy.com/musival.pdfIn PDF document text
    • http://leligikolapib.epizy.com/90539259664.pdfIn PDF document text
    • http://mitudosukekunif.epizy.com/xodatolutimagafaseb.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_off0000fa21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA21 5248 bytes
SHA-256: d58c19b2f69a11fb3f196e6762ae86731e42ed672d537890f9294269ce1bde0a
font_01_sfnt_off00010bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF2 10764 bytes
SHA-256: 4cc3296da9a224fc524b75d7cb6a1dc4078093503526044e6914dda9e540419e