Malicious PDF — malware analysis report

Static analysis result for SHA-256 651b7c9a64fd9cdc…

MALICIOUS

PDF

76.0 KB Created: 2021-02-07 22:19:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a2e9524298bd4418f90896277d6c0286 SHA-1: a7edbc8157076b7880618f06d9770a0ca991ac31 SHA-256: 651b7c9a64fd9cdc13f21bee2c34e9b9ed82c400ae2c27d9cef43448ed7c6719
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an external URI pointing to a suspicious domain, which is likely part of the phishing lure. The document body, though heavily garbled, suggests a theme of 'space wallpaper pack', indicating a social engineering pretext to drive users to the malicious URL. No scripts were extracted, but the presence of external URIs and the malware detection strongly suggest a phishing attempt.

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://druttle.ru/aws?utm_term=space+wallpaper+pack PDF link annotation
    • https://cdn.sqhk.co/kajipazuto/dihzEKn/95467753540.pdfIn PDF document text
    • http://erkutungotu.com/75314932092dvhvi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495385/normal_601fb47ad65e0.pdfIn PDF document text
    • http://com-connexion.xyz/coloured_acrylic_sheets_near_melr3sd.pdfIn PDF document text
    • https://cdn.sqhk.co/gufezima/jjgjONi/xoxipegubudadese.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482648/normal_5fda47dfa9e19.pdfIn PDF document text
    • http://naturaleone.space/defender_24_hour_segment_timer_manualpjyto.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470980/normal_5fc9d9d76c372.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosexotak/gditSih/2508249074.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407749/normal_600b55851f98d.pdfIn PDF document text
    • http://lnstagramcopyrightmanagement.com/85933577186pck0r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/teacher_portfolio_cover_template.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/47117956633.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/zazofokazir.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/7868086514.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_off0000e2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EB 4452 bytes
SHA-256: 8b73ff46c1fe39141a36241f4c935de136874fb480aaee8ffa091959543d880f
font_01_sfnt_off0000f21a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF21A 10136 bytes
SHA-256: 25c0b366d7adb58234dde71e563497c1f36c0eedf683217500fbf24d4dc64b12
font_02_sfnt_off000114cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114CD 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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