Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cf20dfbc6172fbb…

MALICIOUS

PDF

74.3 KB Created: 2021-03-27 15:50:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 00569602c26d6349296b12b63f21f5fc SHA-1: 37bcf2226bfa79464ab42c5bebb7f8a277740fc9 SHA-256: 6cf20dfbc6172fbb5bbbd06c930b3fec00b48756e9a90cdbfa4494b95a034435
156 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, and contains a large number of external links, many of which are likely part of a link farm or SEO manipulation scheme. The document body, though heavily obfuscated, suggests a lure related to 'DSC alarm system manual pdf'. The presence of numerous external PDF links indicates a potential for hosting malicious content or redirecting users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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.
  • 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/wix?keyword=dsc+alarm+system+manual+pdf PDF link annotation
    • http://sajutasure.22web.org/30024262220.pdfIn PDF document text
    • http://vogolimipogusoz.mypressonline.com/adding_and_subtracting_fractions_guided_notes.pdfIn PDF document text
    • http://fufirewavit.getenjoyment.net/how_many_points_is_an_army_achievement_medal_worth.pdfIn PDF document text
    • https://rojanudase.weebly.com/uploads/1/3/0/9/130969060/5539107.pdfIn PDF document text
    • http://tufuwavaziga.mygamesonline.org/rijalagefud.pdfIn PDF document text
    • https://dosijarirolid.weebly.com/uploads/1/3/4/6/134668623/zetatisorewaror_vudofudajasasif.pdfIn PDF document text
    • http://larokamexi.sportsontheweb.net/business_model_canvas_ca_netflix.pdfIn PDF document text
    • https://wegebumerovoni.weebly.com/uploads/1/3/5/3/135387929/9d9dde98aa90bf5.pdfIn PDF document text
    • http://kujunat.medianewsonline.com/achtung_panzer_trke.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sesoxupapalu.rf.gd/bosquejos_expositivos_para_predicar.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/jidavenajego.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/werovojoz.pdfIn PDF document text
    • http://kufekuduvedeni.rf.gd/88492584341.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/oxford_discover_level_1.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/ftp_windows_7_iso.pdfIn PDF document text
    • https://01ff271a-2d66-4e22-ac0f-a796646d2f56.filesusr.com/ugd/8d93e9_f7e8c9be231747298308875a6500ba49.pdf?index=trueIn PDF document text
    • http://vetuvawefaxuta.rf.gd/tegitukuberosebad.pdfIn PDF document text
    • http://jovuxajir.rf.gd/duxiwikekagez.pdfIn PDF document text
    • https://68358877-4ee6-4e53-94f7-4bd9665c1f53.filesusr.com/ugd/3bbd68_b00f70c570724e47bd254905470fcc2c.pdf?index=trueIn PDF document text
    • https://ec451167-49e0-489e-a150-d7dc0ecf9264.filesusr.com/ugd/fe0276_e9c580d8c16343798256880a7eeafdda.pdf?index=trueIn PDF document text
    • https://d6477b75-8e4d-4453-8bbc-a86a6009e57c.filesusr.com/ugd/261d41_8a660a38b09e46d59bedc0387651c4e4.pdf?index=trueIn PDF document text
    • https://7f993087-45f6-41f4-96e5-9dcaca18fb91.filesusr.com/ugd/9a92dd_ac3a22115abd41df9ac9c07172ed985e.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_off0000e6b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B1 5404 bytes
SHA-256: 7c083af305688a9b9948543830158bf3465f2354f2a5dea883204bdca45c97df
font_01_sfnt_off0000f90c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF90C 10292 bytes
SHA-256: ae2b525a371da6e90d050bd91005e2bf4892812f1e2370d4cbcd8e6032b0fd09

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