Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6b7995cc8dfcf60…

MALICIOUS

PDF

110.8 KB Created: 2021-03-22 23:33:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 141621e7858558197cfb028a02313b78 SHA-1: 0052acf699d2071f49a35a2d0d720c1b58c9cac4 SHA-256: b6b7995cc8dfcf6087d493d43fb975356cf02dd9c7eededc6a03e3b95d59e9b9
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a secondary payload. The presence of a 'download button' heuristic further supports a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/wix?keyword=x3+albion+prelude+litcube%2527s+universe PDF link annotation
    • https://cdn.sqhk.co/tigafita/ZifhgKj/youtube_music_cost_family.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496404/normal_602e6e2440807.pdfIn PDF document text
    • http://jivavesomuviz.getenjoyment.net/compuestos_alcanos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497075/normal_60396abdf3caa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418566/normal_5fc7206bc08d0.pdfIn PDF document text
    • http://xitawefavam.medianewsonline.com/88492052685.pdfIn PDF document text
    • https://cdn.sqhk.co/fodexuxefeba/ehhXbo3/teriduzetofe.pdfIn PDF document text
    • https://cdn.sqhk.co/mumeriretepi/gceiiF9/hd_backgrounds_wallpapers_download.pdfIn PDF document text
    • http://dupuladusudired.mypressonline.com/plantronics_backbeat_pro_2_open_mic_with_music.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448545/normal_5fed937daf11a.pdfIn PDF document text
    • https://cdn.sqhk.co/kuniremolu/fSHxgin/8434841892.pdfIn PDF document text
    • http://sinoxaju.mygamesonline.org/960495731.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e71e7e49-fdb0-45c4-bcfd-ace3662a476e/tubofebabodoxubunenax.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/girl_birthday_invitations_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/lavelarolobetawufizojawij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96ddd911-8f2e-4170-8aac-fe3fb376774a/32161722958.pdfIn PDF document text
    • http://terumalok.atwebpages.com/carpal_tunnel_syndrome_stretches.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/13142971697.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/vidmate_music_er_for_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/drama_korea_cheer_up_drakorindo.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/kosuzutalejomawuv.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/cerita_cinderella_dalam_bahasa_inggris.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe4ef87a-e56c-4705-899f-dd2e156a1528/luloxow.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/metal_forming_operations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9906c385-389b-41f2-8891-2331e4fc8188/sikidirimozapamamunovo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/968883b3-9f7c-4b55-9f02-e79925cec655/64254086392.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000157b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x157B0 8460 bytes
SHA-256: 556e04a7e6445248892f3cec4e10050d1691ff8ae6955f799efc64a9597c7a8e
font_01_sfnt_off000172f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x172F3 5440 bytes
SHA-256: a763d1cf27934d0f6e15f967af1c1bf3d3fcb7ac76f9ba280f73ce405eb7b261
font_02_sfnt_off00018583.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18583 11508 bytes
SHA-256: 00490d7ae1291865f4697dc7c2aa0b6445ed63d3bb8e7979eb30279bfbbc69d6

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