Malicious PDF — malware analysis report

Static analysis result for SHA-256 0001e6c366f3829a…

MALICIOUS

PDF

193.9 KB Created: 2021-02-14 12:50:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 2b8aeadae58a060d6b52c3c00915adb5 SHA-1: abc9f6fbd4b779ef2c7d3e41cb4e3d45f4946489 SHA-256: 0001e6c366f3829aaf4473887a298097942011bb996f1dac8e563083f1912839
144 Risk Score

Malware Insights

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

The PDF file contains a lure suggesting a free download, which is a common phishing tactic. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL points to a redirector, likely serving as a gateway to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://jacksth.ru/123?utm_term=borderlands+2+guide+officiel+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4372963/normal_5fee45999ce41.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451766/normal_602769ea06d61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454426/normal_60027ed91cf6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413002/normal_5fe93f0da1e4d.pdfIn PDF document text
    • https://cdn.sqhk.co/litonesi/eXijdhj/sudiliwuva.pdfIn PDF document text
    • https://cdn.sqhk.co/riwaxagi/ojjhfhe/zojimonoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379837/normal_5fe7edd5352e5.pdfIn PDF document text
    • http://nenugatigubom.66ghz.com/15163008165.pdfIn PDF document text
    • http://gepidudida.iblogger.org/62041709309.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391620/normal_5ffa8b045faed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445534/normal_5fd05642cbf75.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416930/normal_6007d7048256a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427799/normal_5fdb376313fff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380226/normal_5fe8275a69bb0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406168/normal_6008ece272972.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485696/normal_6016389618cdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450139/normal_6021287203084.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/timituvupame/biochemistry_stryer_free.pdfIn PDF document text
    • http://xoxigibutu.epizy.com/periodic_table_charges.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/bumblebee_transformer_photo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002a6d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6D0 5504 bytes
SHA-256: 140cbca9f733dd2edd05b9836f72e9ac1b85d2b626642473eafea6a9ae0ddf86
font_01_sfnt_off0002b9a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9A4 12264 bytes
SHA-256: 0816b1b95e20f63a12a0bbcc51784a961f2b0223c3f4f6fd0d3789bd27317ef0
font_02_sfnt_off0002e390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E390 16344 bytes
SHA-256: 9c47a8ecf7103172530608de19fa11afb8a035ab51042e9cb8c6809f09ebb189

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