Malicious PDF — malware analysis report

Static analysis result for SHA-256 58b3bd3151b04f81…

MALICIOUS

PDF

39.9 KB Created: 2020-09-17 07:07:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 024ef8b25ec30021dc0f6e8bce59b37d SHA-1: 0de85af490adbc8271cd20da0726fbd5e582e138 SHA-256: 58b3bd3151b04f8125c9faab2a871f844d33021508a2dce20b8b84165ca5bac4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/wix?keyword=judgment+vs+judgement'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of external links, with the first being 'http://vutozugu.clintonpahistory.org/uploads/1/3/1/0/131070765/595082.pdf'. The ML classifier also strongly flagged this PDF as malicious. These indicators suggest the document's primary purpose is to redirect users to potentially harmful websites.

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.me/wix?keyword=judgment+vs+judgement
    • http://vutozugu.clintonpahistory.org/uploads/1/3/1/0/131070765/595082.pdf
    • http://files.damselflyyogaspa.com/uploads/1/3/2/6/132695194/93087c60d6f1.pdf
    • http://dajug.stjosephsglenealy.com/uploads/1/3/2/6/132695643/jatesinerogad-fasixejejo-petivoj.pdf
    • http://files.mnnfnetwork.com/uploads/1/3/1/4/131438079/bofesafela.pdf
    • http://files.paulson1611rd.org/uploads/1/3/1/3/131397934/245407.pdf
    • https://cdn.shopify.com/s/files/1/0434/2887/2359/files/girl_scout_daisy_uniform_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/6173/8662/files/plant_molecular_biology_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/6219/8425/files/the_pardoner_s_prologue_and_tale.pdf
    • https://cdn.shopify.com/s/files/1/0432/5274/4356/files/babadook_full_movie_in_tamil_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/fierce_conversations_beach_ball_template.pdf
    • https://cdn.shopify.com/s/files/1/0439/8533/8526/files/stop_creative_cloud_startup_mac.pdf
    • https://20b85b65-426a-48dd-98bb-da1e12318ec8.filesusr.com/ugd/bdc04d_285b8513ba44442eb6f7f4099307d16d.pdf?index=true
    • https://0acef0e7-b62f-40b7-9075-8d1f530abaae.filesusr.com/ugd/e2c223_c25b0b1a3d684f038a6d19f33a8e243c.pdf?index=true
    • 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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f97.bin
677d5e355f148545aa6aa78351eda332beb71deba16d15c8ff3545e6dc900bce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F97 4932 bytes
font_01_sfnt_off00007061.bin
266aec3bbe5b81bf1f33de4eeb74889099cb608948c4814e92084f6cc32cb1b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7061 10176 bytes

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