Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae36f97aa29f9a92…

MALICIOUS

PDF

68.2 KB Created: 2021-02-24 02:07:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ede3374dc2dad0a50420bfc3c59c6e9c SHA-1: 5cf61bf2fd117793b0fb67916f13b01ede3d8bf6 SHA-256: ae36f97aa29f9a928b4aeffd9767b35cb6f8e58ed59667c80d0b35114c948897
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=kik+mod+apk+ios In PDF document text
    • https://latijazaw.weebly.com/uploads/1/3/4/3/134312978/buxopexowote.pdfIn PDF document text
    • https://pibezenasa.weebly.com/uploads/1/3/1/4/131454503/3151026.pdfIn PDF document text
    • https://cdn.sqhk.co/xakalodesi/ijUhc74/calendar_template_excel.pdfIn PDF document text
    • https://cdn.sqhk.co/vasozaponem/hhjcZif/37075333170.pdfIn PDF document text
    • http://vereffka.xyz/pelicula_completa_de_amor_y_otras_adicciones_en_espaolv568s.pdfIn PDF document text
    • http://loxigedu.iblogger.org/tai_chi_chuan_18_forms.pdfIn PDF document text
    • https://tuxutumixebapi.weebly.com/uploads/1/3/1/4/131438514/xajekotufuvazax-jewuzezatijid-zokazojubefuvan.pdfIn PDF document text
    • https://lemusudavigi.weebly.com/uploads/1/3/5/3/135395292/sowifofab.pdfIn PDF document text
    • https://dufubixapitosig.weebly.com/uploads/1/3/4/5/134503348/9934696.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/nhhggjb/born_to_die_lyrics_leftover_crack.pdfIn PDF document text
    • http://zahlungsservice-ch.site/pokisadesirumygn9m.pdfIn PDF document text
    • https://dulewidojupetor.weebly.com/uploads/1/3/2/6/132695372/buratafesaja-luvogoxo.pdfIn PDF document text
    • http://sfhgfje5df.xyz/what_is_motion_force_and_energyujz4c.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/somisilegex/what_is_auditory_processing_disorder.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/42080113884.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/99874352742.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_off0000cfe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE5 5012 bytes
SHA-256: 3c2c9fe20215614c5fad93b715928abe38785f9ab078685b3c98c3a011f2f56e
font_01_sfnt_off0000e0dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DD 10304 bytes
SHA-256: 718d0ef58d59d8f500a6161a475a0fac941ae04775f70c162d00544a607a7f05