Malicious PDF — malware analysis report

Static analysis result for SHA-256 f05d6c0be8ca5656…

MALICIOUS

PDF

80.0 KB Created: 2021-03-19 22:27:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e3f52f8599de85182e2bd8d50f0042a SHA-1: 11731372725e44798060999bb6f06450b7cf0bfa SHA-256: f05d6c0be8ca565638320539b78233c6974c7d3e0de8f8a615e27a6588823581
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs, with the primary one being `https://jottigo.ru/wix?keyword=eliz+keto+dietary+supplement`. This URL is presented in a context that mimics a search result for a diet supplement, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect the user to a malicious site or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/wix?keyword=eliz+keto+dietary+supplement
    • http://bobujopolodusol.mygamesonline.org/abdomen_anatomy_atlas.pdf
    • https://cdn.sqhk.co/zidezofa/gjHtIia/iron_avenger_infinite_warfare_rpg_mod_apk.pdf
    • https://cdn.sqhk.co/vuwipabobatu/yghhdha/hitman_movie_2019.pdf
    • https://cdn.sqhk.co/gixotagokezu/Ahhjghh/blood_money_tattoo_shop.pdf
    • https://cdn.sqhk.co/bupitagalir/8Tieu1K/20274418831.pdf
    • http://sugameloxufe.mywebcommunity.org/sokibituxok.pdf
    • https://cdn.sqhk.co/divojimo/jcbRg16/consola_retro_pixel_classic_300_juegos.pdf
    • http://zifixoribe.scienceontheweb.net/acres_of_diamond_download.pdf
    • https://cdn.sqhk.co/salaseli/eghERgd/40599128542.pdf
    • https://cdn.sqhk.co/puxedimuwo/dipCfZ9/gafepexebapubuzegusuw.pdf
    • http://jokojujut.medianewsonline.com/what_does_pull_quotes_mean.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rijemow.onlinewebshop.net/a_level_maths_p1_notes.pdf
    • https://s3.amazonaws.com/xukanomarexumu/at_command_hc-_05.pdf
    • https://s3.amazonaws.com/jotogorurekuro/bhagam_bhag_full_movie_mp4moviez.pdf
    • https://s3.amazonaws.com/gotitibekovi/how_much_is_a_dozen_dunkin_donuts.pdf
    • https://s3.amazonaws.com/xokebore/steelers_vs_buccaneers_injury_report.pdf
    • https://s3.amazonaws.com/lodazojamuva/couples_counseling_techniques.pdf
    • https://s3.amazonaws.com/genedonapubefe/bowers_wilkins_mm-_1_manual.pdf
    • https://s3.amazonaws.com/vuxagixil/music_sheet_blank_vector.pdf
    • https://s3.amazonaws.com/mubemutolewe/binutili.pdf
    • https://s3.amazonaws.com/zunaduxa/gizisamexiwesivevujara.pdf
    • https://s3.amazonaws.com/najipavez/bosch_maxx_5_1400_manual.pdf
    • https://s3.amazonaws.com/xuvamuba/polijisebifubijegaxojim.pdf
    • https://s3.amazonaws.com/xowasosuf/varesubigafe.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_off0000fac2.bin
30d3d07368cfa5025dad575bcd1f389f0c183893a6b4d90b0432137a47af2259
pdf-font-stream PDF embedded font (sfnt) at offset 0xFAC2 5280 bytes
font_01_sfnt_off00010cb5.bin
047987cf49c069acbcf1326bb96243cbe2963f5615a53f10fa3e191441532b70
pdf-font-stream PDF embedded font (sfnt) at offset 0x10CB5 11056 bytes