Malicious PDF — malware analysis report

Static analysis result for SHA-256 97988ecd6b2874da…

MALICIOUS

PDF

79.8 KB Created: 2021-04-12 20:20:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 453a226d69ecaff16f79de839aa98b39 SHA-1: 79f409202cf2bcb9285698bf1e07a4ad39f057e8 SHA-256: 97988ecd6b2874daaf8a1903353af8c4626bb7560d81d91cd0533ed39432245c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of an external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/strik?utm_term=idioms+in+the+bible+explained+pdf
    • https://cdn.sqhk.co/bizujutenifo/ic1jehi/gibubiworurififamafodilew.pdf
    • https://kabudinikibe.weebly.com/uploads/1/3/4/7/134716255/4708968.pdf
    • http://xufamorazogubov.sportsontheweb.net/wonemusem.pdf
    • http://suvuxivenorum.mypressonline.com/thyristor_nptel.pdf
    • http://kengoru.space/candy_camera_apk_uptodownz8uat.pdf
    • https://cdn.sqhk.co/navuwamas/C13hLgf/3760685993.pdf
    • http://nakodinita.scienceontheweb.net/saxagorezogefusi.pdf
    • https://cdn.sqhk.co/lafuwexale/eXxeDid/billie_eilish_age.pdf
    • https://cdn.sqhk.co/sixojifez/hiiabhj/crossword_puzzles_printable_for_kids.pdf
    • http://jirekakeduvinij.22web.org/luwadelaziranokel.pdf
    • https://mulononar.weebly.com/uploads/1/3/5/9/135959518/vawagew.pdf
    • https://sefaxamijewosaw.weebly.com/uploads/1/3/2/6/132682716/resizaf_japufosak_xizovisotakaf_galilutopomowu.pdf
    • http://am-sound.ru/37368849647a5ian.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/29a15be6-b97f-4047-ac49-4e8c9bf70364/documents_required_for_mississippi_driving_license_renewal_tennessee.pdf
    • http://nozabikuj.rf.gd/tom_clancys_jack_ryan_season_1_cast.pdf
    • https://uploads.strikinglycdn.com/files/d4cedeef-1252-4f40-a3a3-7b4d336810fa/jacuzzi_laser_sand_filter_parts.pdf
    • https://uploads.strikinglycdn.com/files/7a73447c-4440-4575-84d4-37947529f826/24962727863.pdf
    • http://mevafedepuneka.rf.gd/fitbit_charge_3_vs_4_vs_inspire_hr.pdf
    • https://uploads.strikinglycdn.com/files/8ccb5cc2-43d7-422b-944b-3d0633ba81af/a_touch_of_class_hair_salon_tallahassee_fl.pdf
    • https://uploads.strikinglycdn.com/files/30483dfd-4161-4092-a8d9-6f89de0e1587/bimibudugexerixemenosudol.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_off0000fbb9.bin
c70f115eee3c5e30457094a7a124a9f33471b4d7e6ba6c981c1ca29c455501cb
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB9 5332 bytes
font_01_sfnt_off00010db5.bin
1970a7b2f46d9d7428e1b43014b66866b4e016d2b2906fd03eaa6d4f300ca4e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB5 10664 bytes