Malicious PDF — malware analysis report

Static analysis result for SHA-256 698230d2213d6993…

MALICIOUS

PDF

73.1 KB Created: 2021-03-13 17:02:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6dab64c9cffc3ce22a09380d78c923a2 SHA-1: 9c1f6096fdfc66c72c9c56209ecfd64da827a7d8 SHA-256: 698230d2213d6993837a90c3735670a11d56697c212b3a0eedfdbd826b2d310e
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 8

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://baarspo.ru/award?keyword=document+to+pdf+convert PDF link annotation
    • https://sovuzozasofebod.weebly.com/uploads/1/3/4/3/134343281/benesa.pdfIn PDF document text
    • https://pudijeda.weebly.com/uploads/1/3/4/5/134586696/6899797.pdfIn PDF document text
    • https://kafazuvowimi.weebly.com/uploads/1/3/4/7/134705673/zabozexiro-fikotom-guwuwob.pdfIn PDF document text
    • https://zirakamu.weebly.com/uploads/1/3/1/3/131398357/jawamogodoxubiwoj.pdfIn PDF document text
    • https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/ba10fccf16a570.pdfIn PDF document text
    • http://kidunotofonaxiz.22web.org/komoga.pdfIn PDF document text
    • https://muxavitegujun.weebly.com/uploads/1/3/1/6/131637584/katavi.pdfIn PDF document text
    • https://rupodekopo.weebly.com/uploads/1/3/4/6/134642208/puwamakokebozozi.pdfIn PDF document text
    • http://jusojixanona.getenjoyment.net/96864074334.pdfIn PDF document text
    • http://lasofetuxig.22web.org/tecnologa_de_las_centrales_termoelctricas_convencionales.pdfIn PDF document text
    • http://noxaduva.mypressonline.com/35514513209.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://38aad9b5-7a72-45b8-ac81-9fe73ce82000.filesusr.com/ugd/08338c_a1e7212827254957a991975be855f0b2.pdf?index=trueIn PDF document text
    • http://pulitisagot.atwebpages.com/sopikom.pdfIn PDF document text
    • https://42e65457-ec34-4553-8979-78b6e302f774.filesusr.com/ugd/f1976d_9f78973b64d44375880a94c791053cea.pdf?index=trueIn PDF document text
    • http://mubomapobe.epizy.com/82974216118.pdfIn PDF document text
    • http://nununad.myartsonline.com/diu_mirena_bula.pdfIn PDF document text
    • https://76bf09fe-c378-4d6f-baa9-beaf48595a8b.filesusr.com/ugd/61567a_d46705f5a91e45539adcc3c2fe7efeeb.pdf?index=trueIn PDF document text
    • https://a7563df4-ba19-4d82-a8a0-b2470d957038.filesusr.com/ugd/61f964_10216fb7536a41de8b9b33fec2c9379c.pdf?index=trueIn PDF document text
    • http://judomoposigu.rf.gd/8393815765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/158ec382-ba54-4e51-b3bd-692b42584bbf/managerial_economics__business_strategy_8th_edition_solutions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/694ea04b-699c-4cd7-9389-296e0b152475/vixewi.pdfIn PDF document text
    • https://1e16da7b-5b4f-4122-a3c4-5c88c9d97cf7.filesusr.com/ugd/83f04e_2aac2a8b553d43629a6c20701523e3d9.pdf?index=trueIn 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_off0000e3a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A8 4940 bytes
SHA-256: b3ee1177fd713b7f8a31fc52ca73c20575d00751c54689e619a5a430d88d7799
font_01_sfnt_off0000f473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF473 10272 bytes
SHA-256: 740378234d1f60f0992d67631621ef9c2a44788a9b0d06eec411f3f30a8ff8cc