Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1480115bdb7e3de…

MALICIOUS

PDF

114.5 KB Created: 2021-01-30 15:43:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 70a0b4baf98c124ce5c474b0fb4fe014 SHA-1: 15cd360ac4a5e16b6ecf4f578c1f972d9d47df79 SHA-256: f1480115bdb7e3ded74bdb295a8ffa4ae91825212fb23f4da8209d79e22964cc
136 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains suspicious links, including one pointing to a PDF hosted on 'managerprogram.live', suggesting a phishing or malware delivery attempt. The presence of embedded URLs and the nature of the heuristics indicate this file is likely part of a spearphishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://leonvi.ru/aws?utm_term=android+camera+preview+size+picture+size PDF link annotation
    • http://managerprogram.live/california_proposition_65_list9260z.pdfIn PDF document text
    • http://tcerkovniekupola.space/josabodebufibezuzufojik5zmd.pdfIn PDF document text
    • https://cdn.sqhk.co/papusabefo/h9nghfZ/damawajixivutirojatig.pdfIn PDF document text
    • https://cdn.sqhk.co/zefipuvuwifi/cjigdcV/hungry_fisherman_restaurant.pdfIn PDF document text
    • https://cdn.sqhk.co/rawerusiwala/1zQrdw7/super_mario_adventure_set.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jusagi/dell_poweredge_r440_server.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/maxabolorajujoduke.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/bezorodokizasuropipikis.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/vukoxilojeden.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/6092847875.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/abby_finereader_portable_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/mathematics_book_grade_12.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/litisizudaruxadoxatufu.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/camera_clicks_sound_effects_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/wapezesidakej.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/wuzegigunigote.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/background_gif_powerpoint.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00018a7d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x18A7D 26972 bytes
SHA-256: f2b3af16c14a0377ade6dad682d60980c4d0ba55c743f9eec714a28960d5a3e6
font_00_sfnt_off00014fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FC3 5380 bytes
SHA-256: 0924210ffc4361922520deb604a43f95ebc8882c992161b0c8b20f3e5615dcc5
font_01_sfnt_off00016213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16213 11800 bytes
SHA-256: 15e6277328dbf7cb7d540cef33b8c0485184c7769f679b797268fd8a785ff7fc

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