Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffaf0f68a3d3bb00…

MALICIOUS

PDF

157.0 KB Created: 2021-05-23 21:17:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92c55803f32e50189faccadcc407b2bf SHA-1: 7a8919c628276ac0a70fb194c6618ca69d6f4cfb SHA-256: ffaf0f68a3d3bb00dcd8f0c6d94d4df91a2210bd64ef51095e2eeb25339a658e
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL and a heuristic indicating a visual download button, suggesting a lure to download a secondary payload. The presence of these indicators strongly points towards a phishing attack delivered as an attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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://midufefew.ru/strik?utm_term=download+battle+trip+nct+sub+indo+kordramas
    • https://pamaxorakumi.weebly.com/uploads/1/3/4/0/134019068/9427427.pdf
    • https://lerojapozexux.weebly.com/uploads/1/3/4/0/134016693/baccdc5.pdf
    • https://lifezubolafa.weebly.com/uploads/1/3/4/7/134715310/vulefajisitugix.pdf
    • https://cdn-cms.f-static.net/uploads/4366976/normal_5fe6292c0cd63.pdf
    • https://befukifesili.weebly.com/uploads/1/3/1/4/131453358/lizunelulazat-jigub-kefawumuzad.pdf
    • https://static.s123-cdn-static.com/uploads/4472475/normal_5fe38c8d492dd.pdf
    • https://vesokawewewavi.weebly.com/uploads/1/3/1/3/131382886/9208387.pdf
    • https://cdn-cms.f-static.net/uploads/4407756/normal_603a0ade9bb4b.pdf
    • https://static.s123-cdn-static.com/uploads/4489058/normal_5fe4b983616bf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/feborobegibew/pivuwidonusin.pdf
    • https://s3.amazonaws.com/tuzakifezara/gezipugofuj.pdf
    • https://uploads.strikinglycdn.com/files/b6e3717a-6672-48f0-ac45-77068b1c704a/44501382294.pdf
    • https://s3.amazonaws.com/muvemasoxaji/63721953830.pdf
    • https://s3.amazonaws.com/vavabi/21759846951.pdf
    • https://uploads.strikinglycdn.com/files/60dff99e-d59d-4d0a-930e-9c7cc2e6d000/mimaniteniwek.pdf
    • https://s3.amazonaws.com/sejakopa/b._a._p_1004.pdf
    • https://uploads.strikinglycdn.com/files/1d5ec50d-0952-414a-be10-905bc948cff3/how_do_you_put_samsung_buds_in_pairing_mode.pdf
    • https://uploads.strikinglycdn.com/files/fa184f0c-6b65-4b60-aae0-c0a573956784/comptia_security_for_dummies.pdf
    • https://uploads.strikinglycdn.com/files/0eb782fd-0cef-4df4-b0f4-01191d8f31ee/dovuzejojazovar.pdf
    • https://s3.amazonaws.com/venunamazozuzo/zevoxoluvakefikafokorezu.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001de0d.bin
25868556d173ecd26fb2bfdbf3aca872550eb28668d50127f7885c5466e6e8c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DE0D 4996 bytes
font_01_sfnt_off0001ef3c.bin
9a7a500b7cae75f8b4f36e5f7e1d83f4777f4ac639e9ef7556e1a20b59332e9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1EF3C 5512 bytes
font_02_sfnt_off000201ed.bin
f2d9c6dd603e65bf1b8bb4aa58773b0a68ce71aef89522c4cb7274e5b24fd438		 pdf-font-stream PDF embedded font (sfnt) at offset 0x201ED 8896 bytes
font_03_sfnt_off00022091.bin
fd9cf3a4129900297f5f5769a6a4bfb6681d39386ff25a71bb8d34b3b503bdfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22091 12860 bytes
font_04_sfnt_off00024c54.bin
7c778e6955ff0f8f792c2f0f55d2da316191ad475f97243eaf60316e3764fdab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C54 17956 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.