Malicious PDF — malware analysis report

Static analysis result for SHA-256 adcbdb17d70df2b2…

MALICIOUS

PDF

66.9 KB Created: 2020-12-17 16:12:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fb94efb1b3605300b8e79a6ebd9a945 SHA-1: d0bfae639525504f8f14112694b6b911e743302e SHA-256: adcbdb17d70df2b2317d9dd84233e75a93dcb942650c6da4ae166101eaaa79da
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely serving as a lure or a redirect to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a compromised website, potentially for phishing or malware distribution.

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://traffking.ru/123?utm_term=bible+verses+about+nature+and+animals
    • https://kotageluvo.weebly.com/uploads/1/3/4/6/134652464/lufefofuva-febiveliteruni-pinuluzijufakuk-wepazaminipara.pdf
    • https://cdn-cms.f-static.net/uploads/4472185/normal_5fb5500db6b05.pdf
    • https://bewodopogogubak.weebly.com/uploads/1/3/4/8/134886142/12feb2485.pdf
    • https://cdn-cms.f-static.net/uploads/4403952/normal_5fd935095b94c.pdf
    • https://cdn-cms.f-static.net/uploads/4375884/normal_5fbf30468d2ab.pdf
    • https://cdn-cms.f-static.net/uploads/4368781/normal_5f8a1d79a4d4e.pdf
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5fc2a7fdf0f50.pdf
    • https://cdn-cms.f-static.net/uploads/4454432/normal_5fa073e9e491a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fc4fa93affbf90a6604a896/t/5fcef9f601eaf4591e1e9e3b/1607399927177/free_wood_burning_patterns.pdf
    • https://static1.squarespace.com/static/5fbffb205e8e827d4288adb3/t/5fc326893c6ccf69f3c5ae85/1606624907042/18329940938.pdf
    • https://static1.squarespace.com/static/5fc5175d8787e8798986e946/t/5fcf83ad69d6d06d55437757/1607435182225/live_voice_changer_iphone.pdf
    • https://static1.squarespace.com/static/5fc6d88a504bb4653ce18603/t/5fd6395f267c8d0ace412e7a/1607874911627/billy_elliot_movie_mp4.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca9a.bin
3707f894f200f3438aa66ba48afd92c4b69f65e93afdcfc506fcaae3b0dd0633
pdf-font-stream PDF embedded font (sfnt) at offset 0xCA9A 5220 bytes
font_01_sfnt_off0000dc49.bin
84a5287ac951fc62c90990ea54d65f96c103b47c2cb7cd040fd78e4655798713
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC49 10316 bytes