Malicious PDF — malware analysis report

Static analysis result for SHA-256 44178c998258cc8c…

MALICIOUS

PDF

79.9 KB Created: 2021-03-12 16:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: e67f9ec773c66678e907d808825627c4 SHA-1: 6124ef6c2f04f51b8fb3ad0c3be421883666f20a SHA-256: 44178c998258cc8c5a238141d562efbfad84ff4b19b2f99bdb4f5206352c3aee
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

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://jottigo.ru/wix?keyword=types+of+cargo+freight+transportation PDF link annotation
    • http://zokoxakabu.medianewsonline.com/66262864308.pdfIn PDF document text
    • http://basagutidabe.sportsontheweb.net/the_ascents_of_james.pdfIn PDF document text
    • https://kuwuxegizeduki.weebly.com/uploads/1/3/2/6/132695805/vifimuxufo_xobixisu_boxujixonugazif.pdfIn PDF document text
    • https://dopovubejaxow.weebly.com/uploads/1/3/4/0/134017692/ea822f.pdfIn PDF document text
    • http://reznitskygallery.com/jupirolozeraxakogaf7k39.pdfIn PDF document text
    • http://euroshopmn.space/46775764617lkcqz.pdfIn PDF document text
    • http://tryplafond.xyz/gixaverejibulujjka7b.pdfIn PDF document text
    • https://buwigare.weebly.com/uploads/1/3/5/3/135308802/sozer.pdfIn PDF document text
    • http://fdvsefwfrw.space/worowarugofipuvizaf3x512.pdfIn PDF document text
    • http://laitlabs.pro/75057381310yav12.pdfIn PDF document text
    • http://hugertely.xyz/ielts_band_descriptors_listeningcc0jb.pdfIn PDF document text
    • http://subfamjtii.site/ripinonibatonudijezus1p1bk.pdfIn PDF document text
    • http://promoocaoameericanas.com/nf_therapy_session_download06gdm.pdfIn PDF document text
    • http://feldhaus-klinker-plitka.ru/845308214306avve.pdfIn PDF document text
    • http://tk-time.site/wanasobusetujowomfy.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/genijusemu/arduino_adafruit_neopixel_library.pdfIn PDF document text
    • http://xalesikejuxo.epizy.com/86908806860.pdfIn PDF document text
    • http://wiwazisumi.rf.gd/deparizizemusireto.pdfIn PDF document text
    • http://fesamemosonug.rf.gd/48550932297.pdfIn PDF document text
    • http://nulidofa.rf.gd/15618351177.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/diffordsguide_clover_club.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_off0000fbf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF5 5296 bytes
SHA-256: 0ac25d72dd7ffff29a7e1cd3affcb34b7b5a9f3acf6624031632665bf62ffef9
font_01_sfnt_off00010e04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E04 10596 bytes
SHA-256: 4c354513b13792b2f04f133d76cd8205b5df2eccc6d5251b17ebe04b58fb6bce

Open this report in the interactive analyzer, or submit your own file for analysis.