Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebf065c1c8e3137a…

MALICIOUS

PDF

49.7 KB Created: 2020-11-01 23:03:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 541af76e7a56a06dc9f9d414e267a26e SHA-1: 596dad5a57ffda5046ce8054ce90b2dcd799b66b SHA-256: ebf065c1c8e3137abb4c8f9939e0a3ee1c03d68711f65d4c6f0c4fc143379fef
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, https://ggtraff.ru/123?keyword=destiny+2+handling+stat+explained, is the primary indicator of malicious intent. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?keyword=destiny+2+handling+stat+explained
    • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/xepederefewemebabig.pdf
    • https://cdn-cms.f-static.net/uploads/4371536/normal_5f8b5d2f24f7a.pdf
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/8bdf9d9c.pdf
    • https://lepitosamodovax.weebly.com/uploads/1/3/4/3/134335454/8858829.pdf
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/806879758e7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0493/7413/4438/files/48874361792.pdf
    • https://cdn.shopify.com/s/files/1/0435/9271/2349/files/38798338885.pdf
    • https://uploads.strikinglycdn.com/files/c0e8ba99-df85-4cb6-b260-cbde472d938b/thse_en_bretagne.pdf
    • https://s3.amazonaws.com/wepeliniru/chemical_engineering_reference_manual_for_the_pe_exam.pdf
    • https://cdn.shopify.com/s/files/1/0504/5039/9385/files/why_uracil_is_not_present_in_dna_quora.pdf
    • https://cdn.shopify.com/s/files/1/0496/1189/9044/files/givorarasamen.pdf
    • https://cdn.shopify.com/s/files/1/0504/5161/1829/files/the_maze_runner_chuck_actor.pdf
    • https://s3.amazonaws.com/vexosafugunu/anthropometric_data.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_off00007f83.bin
719c788083cfa0101b66a835ef328fe6f495d7fdad0247ab851a80b23a623a4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F83 5428 bytes
font_01_sfnt_off00009210.bin
17178786f137296c9973cb75d80a242386ceb934a41979c3009cf09203fd4fc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9210 11860 bytes

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