Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2008b5217c3cd3a…

MALICIOUS

PDF

213.2 KB Created: 2021-02-24 15:34:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 86924ed0452c0d49da4b37a2d839cd51 SHA-1: dfcfe15645159b107cab1364cbccecb2103a68d1 SHA-256: d2008b5217c3cd3ad875320c2600fde0f5c386f49d2e765482197aa334274f7b
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. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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=the+great+depression+usa+years PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383137/normal_5fe0be5d40464.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368997/normal_5ff3ff4d1a2d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477139/normal_5ffce31779182.pdfIn PDF document text
    • http://choosenews.space/fekukalojukagutewape53rh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499351/normal_5fd666f7351c6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414341/normal_5fe3b98030204.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454302/normal_60089fd42af8d.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/vezumobigodub/77901476012.pdfIn PDF document text
    • http://gipanigiwulaj.epizy.com/38812801.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/68664075956.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/netegise.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/birthday_song_in_tamil_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/30924647623.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/where_to_donate_used_furniture_in_montreal.pdfIn PDF document text
    • http://bixuxopot.epizy.com/broken_but_beautiful_songs_ming.pdfIn PDF document text
    • http://pozimefenud.epizy.com/achievement_test_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/69234918274.pdfIn PDF document text
    • https://s3.amazonaws.com/zozofufulolig/mit_architecture_portfolio.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00030d16.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30D16 32912 bytes
SHA-256: 17d8d8719ae7f713e51b751a691945a35beb72b0b95bab9e14b2630823d7a43a
font_00_sfnt_off0002cebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEBF 5240 bytes
SHA-256: be867bdfbbe0b42bfeb110e64c89483053dcb3a281f9084a5051cbea46308da1
font_01_sfnt_off0002e08f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E08F 13560 bytes
SHA-256: b6f871bf9d7503e0a779d43488061c428f974598e48b363dd8a7c8330b5c72ab

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