Malicious PDF — malware analysis report

Static analysis result for SHA-256 11419fb4801d92ab…

MALICIOUS

PDF

89.3 KB Created: 2020-12-25 23:01:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6bd8366305559de81700b23362f6393e SHA-1: d33d0b121e6b5ecae95b98c9ab6fae07e8cfe787 SHA-256: 11419fb4801d92ab10686878bdbe5a445e2a53d689e63ed12f9f511de1b2df7a
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 phishing or trojan payload. It contains numerous embedded URLs, with the primary one being 'https://traffnew.ru/123?utm_term=unblocked+games+66+agario', suggesting a lure related to online games. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection point towards a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://traffnew.ru/123?utm_term=unblocked+games+66+agario
    • https://tanipodolotuweb.weebly.com/uploads/1/3/4/4/134457000/b71eb9eb1.pdf
    • https://cdn.sqhk.co/duxajoje/LVVjdAW/musosasezazova.pdf
    • https://cdn-cms.f-static.net/uploads/4387921/normal_5fb9bb0d222db.pdf
    • https://cdn-cms.f-static.net/uploads/4414336/normal_5f9c103fe2f2c.pdf
    • https://cdn.sqhk.co/simunenij/Wjfjgjh/business_plan_sample_kenya.pdf
    • https://maladekokox.weebly.com/uploads/1/3/4/7/134745457/rapopafifireja.pdf
    • https://static.s123-cdn-static.com/uploads/4465015/normal_5fc883e885594.pdf
    • https://cdn-cms.f-static.net/uploads/4451929/normal_5fbab77ba5667.pdf
    • https://cdn.sqhk.co/kafekata/hfhgkqT/30149545059.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0001139a.bin
1d621f49d404401bb210bf4ce4771b65b1accd3acf98b40cea6b18e4d0798501		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1139A 5608 bytes
font_01_sfnt_off0001268e.bin
be348a22fe190728f1d360d8e10ea682a14f6dd4ddd02d80d69c8b9c0587fdb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1268E 1972 bytes
font_02_sfnt_off00013005.bin
61644fdca0c4e66ade2e52773bcad574a6960144ede1fef013c807a8ea5af66b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13005 11428 bytes

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