Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1e1d813eb41ec3e…

MALICIOUS

PDF

86.2 KB Created: 2021-02-28 20:04:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 847705d8c33b4629d4fbf1892699c7f9 SHA-1: dcc31ee47a5445e1f75abdf6e2e0a23b4c44c496 SHA-256: a1e1d813eb41ec3e5676235e1fc8f938fbfc51de9c6b25c68e5440b1afabccec
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious URL, likely intended to deliver a payload or redirect to a phishing site. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit user trust by appearing as a legitimate document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/strik?utm_term=the+elusive+quest+for+growth+william+easterly+pdf PDF link annotation
    • https://kerawidirara.weebly.com/uploads/1/3/4/7/134746453/nowetiwetabawegeput.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414159/normal_5fe52d74bdfaa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388282/normal_5fcb02aa939ab.pdfIn PDF document text
    • https://cdn.sqhk.co/pobumepova/gQnhcgd/kungfu_action_movies_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370263/normal_6016fc51d888c.pdfIn PDF document text
    • https://wejolizamu.weebly.com/uploads/1/3/4/7/134766198/5484532.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469623/normal_5fc6d5eb09f43.pdfIn PDF document text
    • http://kexedeziferu.sportsontheweb.net/52777954568.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411479/normal_60268a9891bcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387410/normal_600c5b1e92690.pdfIn PDF document text
    • https://cdn.sqhk.co/sezepemanu/9hdNhbR/xozekomabakaloli.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/jbhggch/videoshop_video_editor.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/a2S8Ahh/33530622115.pdfIn PDF document text
    • https://cdn.sqhk.co/zefipuvuwifi/hohbieu/graphic_design_software_t_shirt_printing.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/jaShcMr/used_cars_near_me_under_2000.pdfIn PDF document text
    • https://buderenedisam.weebly.com/uploads/1/3/5/3/135302361/255523f3e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489993/normal_6004e6da4da6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500882/normal_60119eb7e2f60.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
    • http://geforagegi.atwebpages.com/doxixavif.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF326 5000 bytes
SHA-256: 94c6af05936c53e70d679ff86fa2a75331c934b7a3637e8c96e7c137d98afab4
font_01_sfnt_off00010465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10465 5560 bytes
SHA-256: e758d8e4de21d65f3fbc854a4c90c864fe3c87bb6e77d442a477885136466801
font_02_sfnt_off00011767.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11767 11008 bytes
SHA-256: c8119b0bb15c32b1a5aa962e3993eac11f7c0e883a326ca770c8b1b67f44457c
font_03_sfnt_off00013cc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CC7 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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