Malicious PDF — malware analysis report

Static analysis result for SHA-256 e21d3370bb4efffd…

MALICIOUS

PDF

110.5 KB Created: 2021-03-14 17:23:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 209282d4d1003c77d744d2110ec82350 SHA-1: 007f9d6e68283a98fc81f700b614368aa1bb9740 SHA-256: e21d3370bb4efffd324dd8d08fa6743cc4ceb3f69b583471cb2f3e7e1fa309a4
96 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deceive the user into clicking it. The document body, though heavily obfuscated, appears to be a lure related to Bengali legal documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9819

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://seumenha.ru/award?keyword=blood+relation+pdf+in+bengali PDF link annotation
    • https://cdn.sqhk.co/madufuxenuw/0v2lgh5/72587900819.pdfIn PDF document text
    • https://cdn.sqhk.co/bopibege/hm7icja/golden_coast_hotel_hong_kong_buffet.pdfIn PDF document text
    • http://item-mask.top/hamilton_beach_soft_serve_ice_cream_maker_recipesgwjg3.pdfIn PDF document text
    • http://mazafaka69pussy.online/is_gender_reassignment_surgery_free_on_the_nhsxu7zu.pdfIn PDF document text
    • http://soldonlakewood.com/42052254492wjvp9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://www.indictrans.orgIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c2f0cd9-883a-4637-bd68-089b0aec0046/fender_twin_reverb_mods.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/61417279821.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73e1fdb2-7bd7-4a14-adce-2168fecd2747/how_to_do_a_4th_step_fear_inventory.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae3601fe-ad93-43b3-affe-402c1b020ddc/francis_bacon_new_organon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3412989-9c59-430a-804e-8d21efe04461/kitab_ruqyah_syariah.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dd4af8f-662b-4320-a284-d9a8e824244e/how_to_connect_sony_mdr-zx330bt_to_iphone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2f30758-e15d-46c7-bdda-3ebf132a26a6/how_to_make_beef_jerky_in_food_dehydrator.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/83991805674.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/494ce5b8-b4e3-4956-91f8-3d7f8a12094c/67924957771.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a210ca6f-b5a5-473e-b690-5322955f20fd/moultrie_s50i_game_camera_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8c571ca-6d53-47ef-be6d-2334ee5a66c4/rumevusek.pdfIn PDF document text
    • https://s3.amazonaws.com/tugafebip/26733600632.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7d90374-577b-4cfb-912a-8f6819bb6db2/wuzinabakimetokexexewez.pdfIn 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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 12

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1BF 5220 bytes
SHA-256: 9aacbd5cc7d3d343bce29fd0a37efd1dff149f9dceda91c5e7b36e89ea32a42c
font_01_sfnt_off0000e38e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE38E 2656 bytes
SHA-256: c206ac4eca120f096112d408dff6b33a2f721090936d80486df636e1cd240fde
font_02_sfnt_off0000ee92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE92 8400 bytes
SHA-256: 712a16dcf11cae7cc63a781973b1ba9b97a9babe9eb7d2bb1edc4ac8648e192c
font_03_sfnt_off0001098e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1098E 3048 bytes
SHA-256: 4bb619f7e4c8d10c6650d66271e6db770d7def95493d885be3efe54e7c100c22
font_04_sfnt_off0001159c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1159C 2328 bytes
SHA-256: 3702365b3034b9d7945da23b991b5e2ac3f8bb06d1ba3be7e5ba1b5d8dd48c9f
font_05_sfnt_off00012055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12055 2604 bytes
SHA-256: 7f3a1ef136f36ba68bc36e5bcd31de243dce7f4b60e01c4bc40f508baeb48ca0
font_06_sfnt_off00012b6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B6E 2108 bytes
SHA-256: e66bd646ff29f48b94a898642357a1d5295b77faffa0bd70eb77acb4aebc9a97
font_07_sfnt_off00013543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13543 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_08_sfnt_off000142e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142E4 10404 bytes
SHA-256: d543ee8ffc53d3bde1cec60225a459fadf7dd68ed141b9cf97d4129e4664326f
font_09_sfnt_off00016684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16684 17168 bytes
SHA-256: 330ec2c4ad36f61220a55dfb647de6c62f7797b1635a663355c8ddbcc48ae7d8
font_10_sfnt_off00017fda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17FDA 8792 bytes
SHA-256: 1915f7a8492a948304bc4011211e90c09a36ac8f3c3a0547feececdf6fcada4a
font_11_sfnt_off00019d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19D0E 2608 bytes
SHA-256: c4869f4910101e9de114603d80c87e7465cc14a3edf423f39a6ef78b10429b6f

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