Malicious PDF — malware analysis report

Static analysis result for SHA-256 86e98d7d3b9d4124…

MALICIOUS

PDF

98.9 KB Created: 2021-03-27 11:22:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9bcc532859d90018709ca441750bc3bb SHA-1: 1211547e7efcede39edfd7fc278b6329f1486745 SHA-256: 86e98d7d3b9d41247f7035c4593b22e471f2fc9271343b416cb212456788c80a
166 Risk Score

Malware Insights

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

This PDF document is classified as malicious, exhibiting characteristics of an advance-fee scam. It contains numerous external links, with one prominent URL pointing to a suspicious domain associated with a lottery or prize lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://nipisod.ru/award?keyword=ethical+dilemmas+definition+pdf
    • http://dalifajebuxog.scienceontheweb.net/homero_odisseia_portugues.pdf
    • https://rofowijajexer.weebly.com/uploads/1/3/4/4/134476616/6276440.pdf
    • https://mipirizu.weebly.com/uploads/1/3/2/6/132682564/9105827.pdf
    • https://xezelugewopisaw.weebly.com/uploads/1/3/5/3/135311865/nedalufu.pdf
    • http://xumupizaxuto.scienceontheweb.net/how_to_setup_vizio_32_inch_smart_tv.pdf
    • http://letabumo.getenjoyment.net/canzona_di_bacco_e_arianna.pdf
    • http://luxuwum.mypressonline.com/94960043514.pdf
    • http://pazujiz.mygamesonline.org/30116423388.pdf
    • http://jupifidupepir.getenjoyment.net/85106658477.pdf
    • https://velonifiwivuli.weebly.com/uploads/1/3/0/7/130739758/muwapijimudekigefona.pdf
    • http://terugate.mypressonline.com/14135954226.pdf
    • http://miwuzobi.sportsontheweb.net/vulud.pdf
    • https://jometuke.weebly.com/uploads/1/3/0/8/130874139/e7e97829d1.pdf
    • http://werojati.getenjoyment.net/el_aprendiz_de_brujo_grimorio_gratis.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://girofili.myartsonline.com/the_way_we_live_now_susan_sontag.pdf
    • https://uploads.strikinglycdn.com/files/0c09a22d-6ad4-4b03-955a-386bc48e3b34/tp-link_tl-wdr4300_repeater_mode.pdf
    • https://eb7ae0bc-69c2-4833-8adb-ed465737bb77.filesusr.com/ugd/23493e_aad71c59e51c4838921876f559ecddde.pdf?index=true
    • https://uploads.strikinglycdn.com/files/c128fdff-c6fd-446e-944e-cd5053e55889/dibitoruzajaper.pdf
    • https://8a05da06-75fd-4b4b-8779-f7668a2fa4a0.filesusr.com/ugd/da32d9_4d86a5c869a84454986f1edf4b1d8959.pdf?index=true
    • https://uploads.strikinglycdn.com/files/53de3b69-9d7a-4e74-bcf0-f0083b88224a/what_is_homelanders_deal_with_milk.pdf
    • https://a49aa754-465e-4bbd-924e-b3d0e7b66bd4.filesusr.com/ugd/81d6a4_bbfbad3784e34a34bee101a47206da16.pdf?index=true
    • https://17a6c5a8-0587-4adf-8126-5b439e15a62f.filesusr.com/ugd/54bec1_c209b718df3e4f72b048d87ebe73d853.pdf?index=true
    • http://magegefopo.atwebpages.com/pimuda.pdf
    • http://tivakifuzir.atwebpages.com/zavowelib.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000147a3.bin
7ac6462f38cd2a0f6df03b35c249cffa4b4d31579169155a305c9e2dfcb957db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x147A3 5256 bytes
font_01_sfnt_off00015968.bin
68f992f617c8239e1b7813f64c1710ce5693d9dffe037cb6b1cce44b0257fcc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15968 10720 bytes

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