Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd8478c231a98651…

MALICIOUS

PDF

165.1 KB Created: 2021-03-14 01:41:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8128c04845980d827b703ef8a14359fe SHA-1: b5f5f4b84d68029145dd3298e3ff823561559b1c SHA-256: bd8478c231a986514e88c6b37d2fa78ef213af52b33bec07b913309a28eb2cfd
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, one of which is directly referenced in the document's metadata as a 'Skyrim optimization guide'. The presence of numerous unknown-reputation URLs suggests a phishing or malware distribution attempt. ClamAV detection and ML classification strongly indicate malicious intent, likely to deliver a secondary payload.

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://ponafet.ru/wix?keyword=skyrim+optimization+guide
    • https://static.s123-cdn-static.com/uploads/4402717/normal_5fe313618992f.pdf
    • http://jajokojunewi.mypressonline.com/60024281939.pdf
    • https://cdn-cms.f-static.net/uploads/4488581/normal_602bf97d12ad0.pdf
    • http://gtomishebs.xyz/74936296246vf34e.pdf
    • https://vozexipazaxa.weebly.com/uploads/1/3/4/4/134444785/wazulotab_patebukagaxi.pdf
    • http://pressit.space/3776264581vp3zk.pdf
    • https://cdn-cms.f-static.net/uploads/4379380/normal_6047460b09c2f.pdf
    • http://bufibinokurun.scienceontheweb.net/womarom.pdf
    • http://7gusevshop.website/81383948049j25oh.pdf
    • http://rollernefritmassage.xyz/primera_division_table_calculatorvc4k7.pdf
    • http://verification-help.business/565601722952t2im.pdf
    • http://betmoy54.com/nefajonujigadosarm187.pdf
    • https://jipoditilab.weebly.com/uploads/1/3/1/4/131407274/2134476.pdf
    • https://static.s123-cdn-static.com/uploads/4464311/normal_60094d27293e2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bememikat.onlinewebshop.net/gce_o_level_biology_notes.pdf
    • http://kofepiropi.onlinewebshop.net/wabiminowevasij.pdf
    • http://safedoguno.onlinewebshop.net/72895860989.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_off00024d43.bin
b26b44458dadd9633f93c090fe86f88b949bb1e1ebc42739d3df8e38a8b6b424		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D43 5388 bytes
font_01_sfnt_off00025f94.bin
e3e473d0d5f7e0b94995be8e50594403f3c80faecb04182103c2270daa900d54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25F94 11620 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.