Malicious PDF — malware analysis report

Static analysis result for SHA-256 01b189a32b033793…

MALICIOUS

PDF

79.6 KB Created: 2021-03-14 18:42:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 27841dc46d3bea62c2b4bf537a3d651a SHA-1: b100c1d18cd1f99e67b19d9c9bed15ce35c80ffe SHA-256: 01b189a32b033793052c7272525087c3dd4e94ab9fb8326213a91e2ecde0128e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing site disguised as a 'Z score chart calculator'. Heuristic analysis and a machine learning classifier strongly indicate malicious intent, with ClamAV also identifying it as a phishing trojan. The presence of an external URI suggests an attempt to redirect the user to a malicious domain for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://dugedepap.ru/strik?utm_term=z+score+chart+calculator PDF link annotation
    • http://mitipevebedo.iblogger.org/sap_gui_for_java_7._40_linux.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475389/normal_5ffc6d59798e6.pdfIn PDF document text
    • https://cdn.sqhk.co/nilesatu/T1lVjhf/sexiwudobe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486367/normal_5fc7c4a442db8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427097/normal_5fd60cdda998d.pdfIn PDF document text
    • https://cdn.sqhk.co/buvaboda/i73Jhes/laboxavizerepifeleveporo.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/icY7Lio/audio_music_player_apps.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406456/normal_604cd0c7809c4.pdfIn PDF document text
    • https://cdn.sqhk.co/wegabunuti/gdIiaNt/rotosajedizikosu.pdfIn PDF document text
    • https://cdn.sqhk.co/bikegola/ejcY9hj/chicken_invaders_3_cheats_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gekomulo.rf.gd/angola_janga_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/buduxedavuxemigutokum.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/18390621481.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/31079776174.pdfIn PDF document text
    • https://d6aab468-caab-4d9e-910f-d3bf64ae4104.filesusr.com/ugd/5438e3_044db93e995f4b38ab1444fc210dce9e.pdf?index=trueIn PDF document text
    • https://86a9da1b-0b57-4b35-a77a-523886b904cd.filesusr.com/ugd/0d9a50_a7cba5464225458ca8e2f8e371f857ea.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/efd2ff3b-1847-4b41-b165-9cfa3d0cd226/ion_pro200bt_bluetooth_wireless_turntable_review.pdfIn PDF document text
    • https://24a70dd4-b549-4b9e-9c0a-6eea45ab85ad.filesusr.com/ugd/ab0c63_7e9293a8790a43ea980b4b46a84f8d57.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d8a87de-4485-4a85-8e08-f1c74de9a834/onkyo_ir_codes.pdfIn PDF document text
    • https://9db8f275-5044-409a-aa1b-3306d9dda9bd.filesusr.com/ugd/361f4b_2bc95601053f45629d79c4e51c04e38d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/98631105394.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b81edfed-47e4-4dc4-950d-28f16d726631/whirlpool_quiet_partner_ii_sanitized_light_blinking.pdfIn PDF document text
    • https://307a23dc-bb60-4906-9a68-69e45957aa19.filesusr.com/ugd/d2057d_edd87f15602f49a2923d434136292177.pdf?index=trueIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC25 4844 bytes
SHA-256: 82d9ad4e2bd1d8b737bb99bc91c01f38691985cb9f27fa7f6c4705be94cde0d3
font_01_sfnt_off00010c99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C99 10636 bytes
SHA-256: 1eaad6b20b03c58d43115906eae5d9d21015f792cd6d60876821a9d099fef253

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