Malicious PDF — malware analysis report

Static analysis result for SHA-256 c29a7105010880fd…

MALICIOUS

PDF

75.8 KB Created: 2021-03-05 16:08:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: afedad89c0056f0a457daa50d9ed03b9 SHA-1: eca97bf2841464dbf915c545055b9f14e7faf48d SHA-256: c29a7105010880fd3f32d0ca190e1c438dacf9989f72737ed91ce947b64aa43b
166 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics as malicious, including a high-severity finding for suspicious invisible links pointing to potentially harmful domains. The ML classifier also assigned a very high probability of maliciousness. The document's structure and embedded URLs suggest it is designed to redirect users to phishing or malware distribution sites, likely as part of a spearphishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://mezovuduw.ru/aws?utm_term=are+stock+markets+closed+today PDF link annotation
    • http://viwavidif.getenjoyment.net/99098409358.pdfIn PDF document text
    • https://zasawebisev.weebly.com/uploads/1/3/4/8/134865024/mokawidezir.pdfIn PDF document text
    • http://widonatozeg.mypressonline.com/oxford_english_dictionary.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/jQt1idY/zara_home_near_me_london.pdfIn PDF document text
    • https://cdn.sqhk.co/vakenuda/gHhbgid/aye_funny_sound_effects_download.pdfIn PDF document text
    • https://bigikudas.weebly.com/uploads/1/3/0/7/130775628/xebumupesozen.pdfIn PDF document text
    • https://zafasasuk.weebly.com/uploads/1/3/4/7/134713251/312347.pdfIn PDF document text
    • https://kowalarezanir.weebly.com/uploads/1/3/1/4/131438161/wabasume.pdfIn PDF document text
    • http://gopusoduj.mygamesonline.org/revere.pdfIn PDF document text
    • http://com-login8.xyz/hundred_years_war_historyraeqr.pdfIn PDF document text
    • https://cdn.sqhk.co/desiketomasu/oSgdjg2/wevobetirudoza.pdfIn PDF document text
    • http://tlgfree.xyz/91266657281ia3jl.pdfIn PDF document text
    • https://cdn.sqhk.co/nemazuwigumo/ehYFD3Y/weekend_at_bernies_2_cast.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/33c55445-92f2-42c2-9a6e-2ab5cf230c64/29069946306.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30fe7cf2-18a4-4d09-af74-a5979cb67ce0/tigusokutawedozaw.pdfIn PDF document text
    • http://xakagigoneliv.myartsonline.com/9696088290.pdfIn PDF document text
    • http://gukutimaguvuzum.onlinewebshop.net/53685928467.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/rcog_guidelines_for_hellp_syndrome.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/income_support_calgary_reporting_card_online.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/lucida_blackletter_ttf.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_off0000eab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB4 5240 bytes
SHA-256: 0b9152a14b9e406e79649daac76ddcb323aed2015f78e7e1936a0bc325bdf4d2
font_01_sfnt_off0000fc79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC79 10884 bytes
SHA-256: 555c592f324b1bf67426132f90744704d44bb6fdf0586a58e9493b3612a7beae

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