Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6d6e360686e217…

MALICIOUS

PDF

44.4 KB Created: 2020-08-24 14:15:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a9a7c8bfeb988002966a21ae57a834a SHA-1: 6b40f95f5bd999d0bfd92eea647ac7e44a1f86b5 SHA-256: dc6d6e360686e217faa3afadb7220ab957e0d2eec83520a2892e9f534f79c58e
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=battlefield+v+firestorm'. Another critical heuristic identified a PDF link farm, suggesting a tactic to distribute malicious content. The document body, though heavily obfuscated, contains references to 'Battlefield v firestorm' and the URL 'https://ttraff.com/pify?keyword=battlefield+v+firestorm', indicating a lure to a potentially malicious site.

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.com/pify?keyword=battlefield+v+firestorm
    • http://wusefofe.thusiasdaevangel.com/uploads/1/3/0/9/130969723/jubalapazawofivim.pdf
    • http://files.thehotshoporegon.com/uploads/1/3/1/6/131637606/jomudukateg.pdf
    • http://files.edenshepherds.com/uploads/1/3/0/8/130813448/toduv_gidureveki_vefujarupakik.pdf
    • http://vijubaru.santosayogaandhealth.com/uploads/1/3/1/3/131378776/15a348031b.pdf
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/kanejopefizi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0658/files/75933755449.pdf
    • https://cdn.shopify.com/s/files/1/0432/7273/2836/files/73156856238.pdf
    • https://cdn.shopify.com/s/files/1/0431/1462/7234/files/ashraful_insha_3_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/1592/8997/files/78371970191.pdf
    • https://cdn.shopify.com/s/files/1/0435/3795/7023/files/susaridunifetebewemof.pdf
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/kawedulatizatukotapu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0237/9939/files/ayushman_bharat_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/9078/9027/files/mixed_conditionals_with_answers.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f17.bin
faf3e01b917c72beb8d78b948d8188fa96662ef6562eecd1791209d2656f1093		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F17 5164 bytes
font_01_sfnt_off00008095.bin
ed9a3ae907b4f3ff7fccb80c2da47bf8d27ef322917dc34ee3e29568d8177cc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8095 10732 bytes

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