Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe30354030a58be6…

MALICIOUS

PDF

73.4 KB Created: 2021-06-07 17:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 4d43169c0ed89b47ae0fc6e89869af46 SHA-1: 5328fe3b30f5ae2adc81b651eb5c2b2558c13563 SHA-256: fe30354030a58be686bdf7efb7eac31fb0fed18f409464aff1d93e983ac51bec
186 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. The primary URL, 'https://smidgel.ru/pbw?utm_term=galaxy+attack+alien+shooter+online+generator', is presented as a generator for a game, likely a lure to direct users to a malicious site. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://smidgel.ru/pbw?utm_term=galaxy+attack+alien+shooter+online+generator PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4483586/normal_6035b047a8a46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450734/normal_600c51a4cd09f.pdfIn PDF document text
    • https://jonasajikisewo.weebly.com/uploads/1/3/4/8/134855139/1050400.pdfIn PDF document text
    • https://mobuzuwatajol.weebly.com/uploads/1/3/4/3/134310732/xizojamesu_fajadekotojenin_nazikivikarife_vewijug.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4471682/normal_60b0009e28ad7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385633/normal_5fdc3b29020f0.pdfIn PDF document text
    • https://tivofemexire.weebly.com/uploads/1/3/4/0/134012880/adfcf6e23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402722/normal_602e5a4814a5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378843/normal_5fd6735164c92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367911/normal_5fc9ae7f6beac.pdfIn PDF document text
    • https://rowusebejaron.weebly.com/uploads/1/3/1/6/131637242/7610417.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4370777/normal_60b5cc5074b7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444371/normal_604344bd7afcb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377371/normal_5fe05964bfc2b.pdfIn PDF document text
    • https://miganavon.weebly.com/uploads/1/3/4/3/134368237/muguzobatomuwijole.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/d4028bb2-f19b-4d9f-8ef8-61492f441bd5/garmin_echomap_chirp_44dv_review.pdfIn PDF document text
    • http://togusan.pbworks.com/w/file/fetch/144615057/descargar_turbo_manual_de_guitarra_elctrica_v2.0_gratis.pdfIn PDF document text
    • http://lakebimutep.pbworks.com/w/file/fetch/144417999/pojevufifojiravakegapuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04117e44-bdc1-43d0-bfe0-f368f92fc2ad/how_to_program_the_xr2_remote.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e01d2e02-d12d-4679-84ca-848cf2b6d05f/manual_do_teclado_roland_juno_di_em_portugues.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9772a844-1309-4d5e-a627-4e8800b0a026/jilugobumorodukiwule.pdfIn PDF document text
    • http://papoxuva.pbworks.com/w/file/fetch/144560484/dowixuxeb.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_off0000df54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF54 5328 bytes
SHA-256: 74221bef835ebd73d1267ba27156db291d46a6677a574807b28ff29075b7ee16
font_01_sfnt_off0000f17d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17D 10940 bytes
SHA-256: 1bd932e33faccf8efd2fd2a4aae85bbf62e8c011674801cc48809bc6965a93a3