Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e9ecfcd6471e62…

MALICIOUS

PDF

191.6 KB Created: 2021-04-03 19:14:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 6eabdadc3873a46df5ee48cce762ee6f SHA-1: e469a4f785a64294918032f4641aa5287ab82782 SHA-256: 82e9ecfcd6471e620670f0e98c9023f906e7ddb83099311dbddbf173fef3db9b
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, specifically a URL related to 'information about gst in marathi pdf'. This, combined with the ML classifier and ClamAV detection, strongly suggests a phishing or malware distribution attempt. The embedded URL is the primary indicator of malicious intent, likely leading to a second-stage payload or a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8628

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://pelibifir.ru/award?keyword=information+about+gst+in+marathi+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381980/normal_5fcfad367e002.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371004/normal_5ffd643f9baa5.pdfIn PDF document text
    • https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/7074872.pdfIn PDF document text
    • https://bavusuma.weebly.com/uploads/1/3/4/2/134265942/94a27158dfc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371543/normal_5fc8b7e352cb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460944/normal_60120f0673a58.pdfIn PDF document text
    • https://juwomazitebuden.weebly.com/uploads/1/3/1/4/131414743/9496951.pdfIn PDF document text
    • https://sivasanetit.weebly.com/uploads/1/3/6/0/136095735/f0f2fcc7c24.pdfIn PDF document text
    • https://cdn.sqhk.co/gajerivab/hh8gcyg/rocket_soccer_derby_multiplayer_demolition_league_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_600a2924dfa95.pdfIn PDF document text
    • http://madusotiju.22web.org/arthur_rimbaud_poetry.pdfIn PDF document text
    • http://kakajuzikokimi.iblogger.org/7426439379.pdfIn PDF document text
    • https://ginuwawabesinu.weebly.com/uploads/1/3/1/1/131164414/c8b928a3.pdfIn PDF document text
    • https://surevasod.weebly.com/uploads/1/3/1/8/131856145/kivemuxedi-wazekuje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481839/normal_601ecc4202af1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455380/normal_5fdd625707bc7.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/Aihijja/74670157801.pdfIn PDF document text
    • https://palotuzumi.weebly.com/uploads/1/3/5/9/135991270/pixikot.pdfIn PDF document text
    • https://sogifeni.weebly.com/uploads/1/3/2/7/132712483/ea8053.pdfIn PDF document text
    • https://cdn.sqhk.co/julukimesof/jhhlZAD/art_education_masters_programs_california.pdfIn PDF document text
    • https://cdn.sqhk.co/gupimupiset/cOxEEB9/metal_packaging_europe_twitter.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://muwadobekele.rf.gd/banojogilijifawike.pdfIn PDF document text
    • http://fepadegan.epizy.com/aside_scheme_full_form.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 11

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00022a2e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x22A2E 4168 bytes
SHA-256: af1a093e377dc3d2c81a31bd14e05bf0b71a182e1969acf28cd34729406bc77b
font_00_sfnt_off0001e572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E572 5500 bytes
SHA-256: 7eaa9faf9230e9628602342691a271182245148ac5f625ffab9622510f3d3bad
font_01_sfnt_off0001f7f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F7F1 4804 bytes
SHA-256: e7fa24d3a4cf74fe4494ba6a0be1f5771c77301f555c83142ca0ece605f76530
font_02_sfnt_off000208da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x208DA 5068 bytes
SHA-256: 7778e7ddbe143d156af4f0cf6f785e2cc74bc75bea82f785c45e3ea41ae69406
font_03_sfnt_off0002193a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2193A 4736 bytes
SHA-256: 36fd81e7c5bb18efde8f70ef85f2e43bc01330300dd37ebba9e969b1f20f575f
font_05_sfnt_off000238ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x238EA 3852 bytes
SHA-256: 04c8ee0bad08777aa32faa495abd7bb8f8d3204c8b862d3ef310fc2421ae7de5
font_06_sfnt_off000247f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x247F4 4648 bytes
SHA-256: 6a196b84c150141bd270c8a8e3cd2414c95ab55d3fe2f53e8deb4457f0cfdea3
font_07_sfnt_off000257c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x257C5 4720 bytes
SHA-256: ad961d6f4bcb7a02541b6ed6778d52ea9ad6cb27366954db5c84ac75614d9ed4
font_08_sfnt_off0002666b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2666B 10812 bytes
SHA-256: bff0802fd8743e425fbcd5add5e8f4024d8fe37050c1c4218efaf976385acc76
font_09_sfnt_off00028bce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28BCE 19452 bytes
SHA-256: 18ea46fa67982e1c540341b06ffa327bb226f721980cc0e141f283c1d609d16f
font_10_sfnt_off0002ab8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB8E 22896 bytes
SHA-256: ae0b8a8bb3860608b8839c90aab41548355e86c0b910a7a4363700dd7155998e

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