Malicious PDF — malware analysis report

Static analysis result for SHA-256 2675174316cea5e2…

MALICIOUS

PDF

78.3 KB Created: 2021-02-16 10:43:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fe512ba777db6b219f8aea158e411bd SHA-1: 2b60accdb4c219fbb980a6437075c2c305ebb6ca SHA-256: 2675174316cea5e2e8f6455013d48dbe8defa8deb756b39ee568c6833cd33256
104 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier assigned a high probability of maliciousness. The presence of a PDF_URI heuristic pointing to 'maypoin.ru' and a 'SE_DOWNLOAD_BUTTON' heuristic suggests a phishing or malware distribution attempt. The embedded URL is likely intended to lead the user to download a malicious application.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://maypoin.ru/wix?keyword=movie+go+apk
    • https://cdn.sqhk.co/woteruzid/sgdIjhp/11313667125.pdf
    • http://sukozuxari.22web.org/cartesian_plane_worksheet_grade_9.pdf
    • http://taxilozevuj.iblogger.org/secured_not_printing.pdf
    • https://cdn.sqhk.co/xujurovemu/iEhiqgd/roblox_ninja_run_nas_l_al_n_r.pdf
    • http://tejajugumoneton.66ghz.com/aziza_song_audio.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jabelakejirer.epizy.com/51484456304.pdf
    • http://lodonevubepivor.epizy.com/tinaratixuwurisajinak.pdf
    • https://s3.amazonaws.com/lixuzo/mexisonibafo.pdf
    • http://gefetela.epizy.com/camaro_repair_costs.pdf
    • https://s3.amazonaws.com/wusigipufuvowix/application_form_for_passport_officer.pdf
    • http://suvapik.epizy.com/active_and_passive_voice_worksheet_grade_8.pdf
    • https://s3.amazonaws.com/rijaliwiguvex/django_login_template_github.pdf
    • https://s3.amazonaws.com/daselex/lazokajufibivoxeliga.pdf
    • http://lisokabosexipep.epizy.com/32246573910.pdf
    • http://dativolulonal.epizy.com/brazil_english_song_mr_jatt.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e16c.bin
5244abeed6b0c90d1d62539416ec9b3430ecab15661c24abe5f993b64ffef9cb
pdf-font-stream PDF embedded font (sfnt) at offset 0xE16C 4808 bytes
font_01_sfnt_off0000f1fc.bin
c709cefe647f8e0abce5f68aa6e5622a8164c53e920039b903cb7e7ed71eaf26
pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FC 10568 bytes
font_02_sfnt_off0001165c.bin
aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x1165C 16312 bytes