Malicious PDF — malware analysis report

Static analysis result for SHA-256 b098ceb85c976845…

MALICIOUS

PDF

85.6 KB Created: 2021-03-01 06:39:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: e35da1118720474acbd8beae96c07a92 SHA-1: 0a2e00b33831261b4e8ef4e1aa0276f0c6111259 SHA-256: b098ceb85c976845bca1a2de7d593ba634e3cb5fdf445f4653e0f1fe6603afd9
146 Risk Score

Malware Insights

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

The PDF contains a high number of embedded URLs pointing to disposable domains, a common tactic for phishing or distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious sites, potentially for credential harvesting or further infection.

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
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/123?utm_term=26+roadmaster+granite+peak+women%2527s+bike+weight+limit PDF link annotation
    • http://zunuruxeguxifi.mygamesonline.org/how_to_reset_danby_wine_cooler.pdfIn PDF document text
    • http://tifoxikutawe.sportsontheweb.net/10408954438.pdfIn PDF document text
    • http://xafopawiki.medianewsonline.com/bluejackets_manual_20th_edition.pdfIn PDF document text
    • http://tevutubiwij.getenjoyment.net/kinokufukexe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458625/normal_60307a35e517e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495395/normal_601a0a1e9b503.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/lady_of_the_lake_movie_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416151/normal_5ff5dc322ac68.pdfIn PDF document text
    • http://faripofijukevom.mywebcommunity.org/audio_driver_windows_10_64_bit_hp.pdfIn PDF document text
    • http://zolozabaxozafa.iblogger.org/11055095247.pdfIn PDF document text
    • http://diniguwoweka.iblogger.org/tibco_jaspersoft_studio_vs_ireport.pdfIn PDF document text
    • http://umdtheatre.ru/nisene_marks_trail_mapwd9e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420934/normal_603688c601461.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485591/normal_60129fdbcf6f1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dexifuv.epizy.com/fobariv.pdfIn PDF document text
    • http://nixomirorubu.myartsonline.com/dfinition_du_trouble_obsessionnel_compulsif.pdfIn PDF document text
    • http://zipemoluligera.myartsonline.com/what_conditions_led_to_the_renaissance_start_in_italy.pdfIn PDF document text
    • http://jilabof.epizy.com/pubumipos.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6A 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off00010d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5E 5896 bytes
SHA-256: 65b8ef50deaeed379fc96765f6d97a692685c49ca548b39bb73e0e8203dc55bc
font_02_sfnt_off00012157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12157 11640 bytes
SHA-256: 8e25da110c4db6736f071eabb888a9973efa84b01fe10920ef7aae26c60aebfe

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