Malicious PDF — malware analysis report

Static analysis result for SHA-256 927019f63d652f5e…

MALICIOUS

PDF

78.6 KB Created: 2021-01-23 11:51:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92e6ea440cb5faedab93dcc8246511a1 SHA-1: d207d94631775fa5fb4f9777f85c4d18e80ccccf SHA-256: 927019f63d652f5e0b6482ccf8d1f450112f9238dbc80523853eaa5b6e489e2e
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a suspicious domain, likely serving as a lure for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

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://traffset.ru/aws?utm_term=nace+cathodic+protection+handbook+pdf
    • https://site-1193425.mozfiles.com/files/1193425/87394971581.pdf
    • https://cdn-cms.f-static.net/uploads/4421466/normal_5fd671831cc4a.pdf
    • http://maxitis.22web.org/toluzigigoni.pdf
    • https://site-1178304.mozfiles.com/files/1178304/3231699453.pdf
    • https://cdn-cms.f-static.net/uploads/4379241/normal_5fdbea386302d.pdf
    • https://static.s123-cdn-static.com/uploads/4490001/normal_5fe3ff550f994.pdf
    • http://basijinogasa.22web.org/75649460000.pdf
    • https://cdn-cms.f-static.net/uploads/4380854/normal_5fd64448c638d.pdf
    • https://cdn-cms.f-static.net/uploads/4416128/normal_5fe90093a5213.pdf
    • https://static.s123-cdn-static.com/uploads/4527108/normal_5fe35b984cb2c.pdf
    • https://cdn-cms.f-static.net/uploads/4420476/normal_5fd7a3be39ba9.pdf
    • https://static.s123-cdn-static.com/uploads/4472186/normal_5febece25eb74.pdf
    • https://static.s123-cdn-static.com/uploads/4389576/normal_5fee115e6e78b.pdf
    • https://cdn-cms.f-static.net/uploads/4408352/normal_5fd9e631175d3.pdf
    • https://static.s123-cdn-static.com/uploads/4390366/normal_5fe24421723ee.pdf
    • https://cdn-cms.f-static.net/uploads/4366989/normal_5fd6e3a9623af.pdf
    • https://static.s123-cdn-static.com/uploads/4481994/normal_5ff76a9f52762.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://zebigibozudival.epizy.com/excel_template_to_keep_track_of_passwords.pdf
    • http://xutulatovemi.epizy.com/free_sheet_music_maker_software.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e97d.bin
f8b0a386b35478db4bf2ec2d4a031554d8d8d5392a6c9d43a387f5ea0384372f
pdf-font-stream PDF embedded font (sfnt) at offset 0xE97D 4992 bytes
font_01_sfnt_off0000fa60.bin
4d11700a3357287e9436ff5b3c93b60bd430a843da1eeb007459055c4ffc7b72
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA60 10672 bytes
font_02_sfnt_off00011e74.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x11E74 4324 bytes