Malicious PDF — malware analysis report

Static analysis result for SHA-256 697022b00cce3c38…

MALICIOUS

PDF

65.0 KB Created: 2020-12-25 05:50:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 3154e36273c878c6bf648f9e27bc5791 SHA-1: d0e8a78dd9bb63450150d801967651e57f433bff SHA-256: 697022b00cce3c3804270e20f05c6db88a368aeac34b01de938dcd3bcb93284c
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'trafffe.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains strings related to 'Android adb driver windows 8', suggesting a lure to trick users into downloading malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafffe.ru/aws?utm_term=android+adb+driver++windows+8 PDF link annotation
    • https://cdn.sqhk.co/xilelawemu/ggjhhh0/best_meal_night_before_a_soccer_game.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/0ed18f8c-77d1-4b65-be1d-f34e16bab4da/fogajosepemixivobi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfe2b297-1ce4-48b0-a42d-99ac7ef86ffd/dot_torture_drill.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/2012_toyota_sienna_repair_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12a627c6-14b1-4233-baff-eed37045cb13/81416950389.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9fee8c2-8bee-4e35-965c-718f158d1cad/ic_compiler_implementation_user_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a792092b-e32b-49e2-b6eb-f583db02e79d/jatamoxefarewefuf.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/corel_draw_x6_crack_file_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/hiromi_piano_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07f2df0d-d260-4b1c-849b-43942634da60/rofabot.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/35586680345.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF4B 5264 bytes
SHA-256: 77e6adefb8b752e3166320599ee304990ea1e32a608110c31f20fc33e928b0ba
font_01_sfnt_off0000d14d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD14D 10620 bytes
SHA-256: a0aa98900e6414e421dbd481817a42b66ffd3408c5938281af264287cdb50ca0