Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba106d7f0459568…

MALICIOUS

PDF

90.3 KB Created: 2021-03-30 03:48:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5762ade6b4c40c031d93da1e2d404741 SHA-1: b9b1c9d157225ff8d8cd60502431522ef5f1b9dc SHA-256: 0ba106d7f045956845813fa582d6a7189cc7d631415731698ff0e4cdf5286bc1
136 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by ClamAV and an ML classifier as malicious. A critical heuristic indicates a lure to execute commands via the clipboard, suggesting the document is designed to prompt user interaction for payload execution. The embedded URL points to a suspicious domain, likely serving the malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://xezojetit.ru/123?utm_term=ng+cli+cheat+sheet+pdf
    • https://cdn.sqhk.co/xaloridinef/ja3hhic/nick_chubb_fantasy_2020.pdf
    • http://interplast.ru/begum_rokeya_university_admission_form_2018-_19gjxky.pdf
    • http://copyrightshelpcenter.com/32643740328bk1ux.pdf
    • http://vavexefane.mypressonline.com/morapajakefetugetikamujit.pdf
    • http://foxilajat.sportsontheweb.net/39674401374.pdf
    • http://dududuw.mypressonline.com/ashta_laxmi_stotram_telugu_mp3_download.pdf
    • http://stavki.link/magellan_high_conviction_fund_fact_sheeta86kn.pdf
    • https://static.s123-cdn-static.com/uploads/4413978/normal_5fc9f5da94873.pdf
    • https://cdn-cms.f-static.net/uploads/4393016/normal_60145068d32e0.pdf
    • http://iciapp.xyz/apple_ipod_nano_7th_generation_16gb_space_grayvz0ut.pdf
    • https://cdn.sqhk.co/geruxibab/dIhhjco/87798649611.pdf
    • https://cdn.sqhk.co/mikevoponage/hjhjhjw/50259945614.pdf
    • https://static.s123-cdn-static.com/uploads/4372399/normal_6006111946c1c.pdf
    • http://fontawesome.iohttp://fontawesome.io/license/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sizadagazagaj/xokujulidem.pdf
    • https://uploads.strikinglycdn.com/files/4b30a01a-c92d-4da1-912c-598f743cbea1/fevuzeludusofugana.pdf
    • http://xijejuvi.myartsonline.com/dua_e_astaghfar.pdf
    • https://s3.amazonaws.com/robumuduluwise/xufazopoxoreruvokubokom.pdf
    • http://timojodabemisux.myartsonline.com/maytag_bravos_mct_dryer_heating_element.pdf
    • https://s3.amazonaws.com/wifiduxezo/21650177797.pdf
    • https://uploads.strikinglycdn.com/files/f75d24f7-f084-4ef9-b29a-d2d253df8908/budapimifanulobopixamuj.pdf
    • https://uploads.strikinglycdn.com/files/ed6f8755-168f-4586-9730-3a31240398f0/4796221590.pdf
    • https://uploads.strikinglycdn.com/files/6b05d706-01ae-4de8-b868-a43f43dfdb7e/57542141172.pdf
    • https://uploads.strikinglycdn.com/files/15190f5d-5c2a-4c51-9fb8-eb0bdfe00f38/68879498137.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102a3.bin
f4ac7e2e9bbe9875eb78a5629ff9e63ea03d1c894dae8aea89756874cdbfc8ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102A3 2400 bytes
font_01_sfnt_off00010d4e.bin
2e5250aeea0b24d300d61a7c1970341a92ac0b5be5ddaa673c67886413927642		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D4E 5288 bytes
font_02_sfnt_off00011f59.bin
1505124277448c38b1ff2bbea1a0dd0bbbdf76b691fcc6ec558f0806009a3a5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F59 11416 bytes
font_03_sfnt_off0001467c.bin
5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1467C 16060 bytes

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