Malicious PDF — malware analysis report

Static analysis result for SHA-256 e450b03bb174fe31…

MALICIOUS

PDF

88.1 KB Created: 2021-03-14 12:54:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 78e8059ec79544ed481170cc7f55baee SHA-1: af0593124bb48da5a33dd1e42beed6edfc65e38f SHA-256: e450b03bb174fe318ae904bc2caeee259c2674bb7fcc3bf71b37a1b101e66521
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to disposable hosting, suggesting a link farm or phishing lure. The presence of external URIs and the ML classification strongly suggest this document is designed to redirect users to malicious sites, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://dugedepap.ru/award?keyword=receptive+and+productive+skills+of+english+language+pdf PDF link annotation
    • http://fakaluwu.scienceontheweb.net/academic_writing_a_guide_for_management_students_and_researchers.pdfIn PDF document text
    • http://pivolirarorip.mypressonline.com/fimifivof.pdfIn PDF document text
    • https://tomoniwibisuxis.weebly.com/uploads/1/3/5/9/135961627/b6e4daac9688c.pdfIn PDF document text
    • http://lofoporubatul.mygamesonline.org/proof_david_auburn_themes.pdfIn PDF document text
    • http://wiregabjuk.fun/780740300460dyny.pdfIn PDF document text
    • http://yourdesk.website/jabepufevomomufisojifol7gupx.pdfIn PDF document text
    • http://lezeninimi.medianewsonline.com/ukulele_easy_songs_hindi.pdfIn PDF document text
    • http://parazepurafeza.medianewsonline.com/2008_lamborghini_gallardo_spyder_hp.pdfIn PDF document text
    • http://jofifuneku.medianewsonline.com/38745670469.pdfIn PDF document text
    • http://gosepakaf.getenjoyment.net/bjt_transistor_configurations.pdfIn PDF document text
    • http://kaxavetaxudu.mywebcommunity.org/45403912733.pdfIn PDF document text
    • http://halfraire.xyz/dupabatezafiledzoumb.pdfIn PDF document text
    • https://bipewajebij.weebly.com/uploads/1/3/2/7/132740639/5473319.pdfIn PDF document text
    • http://sesesuruko.mypressonline.com/what_is_physics_first.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://toxiwudogosos.epizy.com/canzoniere_scout_agesci.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef7e3d36-6858-4a06-a038-2fb26eecb066/lady_macbeth_movie_free_download.pdfIn PDF document text
    • http://zatuvejamubolo.atwebpages.com/avatar_korra_comics_read_online.pdfIn PDF document text
    • http://wivifizurata.epizy.com/cbi_shankar_kannada_movie_video_songs.pdfIn PDF document text
    • http://lajuloverebob.epizy.com/roll20_pathfinder_character_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6364525-0615-4fb9-89a5-369cdb161f6c/dd_gods_of_war.pdfIn PDF document text
    • http://kigetivizaru.epizy.com/balupu_movie_video_songs_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89594d1d-2e8e-46f0-b5cf-038b30bfe768/ranger_boat_owners_tournament.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5A 5428 bytes
SHA-256: 2934435a89aa09a0e39ff9c2d3767bdb9e6f64ea07e6c39cad342328ac04559d
font_01_sfnt_off00011fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FCC 10764 bytes
SHA-256: 3bfd65deadd9d319f9a7f972eaae070931b27c3b5e06b84ff4d6056cd3e4a15f
font_02_sfnt_off0001447f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1447F 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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