Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7ebf5a59b94dde8…

MALICIOUS

PDF

41.4 KB Created: 2020-08-18 21:30:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1cd315b93627d7af3cf764544e5d3e8 SHA-1: 7b1ba626759734f1d645f2aa67cdb9a3e946fab2 SHA-256: f7ebf5a59b94dde8d4156d775861d3b09cbddc9405f5f47350b5d1a1b2943ef7
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, including a critical redirector link to ttraff.com, which is likely used to deliver malware or lead users to phishing sites. The document body text explicitly mentions "Ethical hacking tutorial apk" and includes the malicious URL, suggesting a lure to trick users into downloading potentially harmful software. The ML classifier strongly supports the malicious nature of this PDF.

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=ethical+hacking+tutorial+apk
    • http://files.mikewritesfunny.com/uploads/1/3/0/7/130739225/6169843.pdf
    • http://files.betsyrose.org/uploads/1/3/0/7/130775866/96515b117da5.pdf
    • http://files.jdmwebsitedesign.com/uploads/1/3/0/7/130775970/gevizaxina.pdf
    • http://files.lslvet.com/uploads/1/3/1/6/131636914/4a92475b3.pdf
    • http://xivabupe.beccamccreedydesigns.com/uploads/1/3/0/9/130968996/rizegus.pdf
    • https://cdn.shopify.com/s/files/1/0431/8524/2269/files/49978843073.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/chalo_2018_telugu_movie_english_subtitles.pdf
    • https://cdn.shopify.com/s/files/1/0433/0412/4571/files/xomanalenevopov.pdf
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/rerufomivo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1350/5185/files/blackshot_sea_2018.pdf
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/susizugir.pdf
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/kevisolevedetuzenul.pdf
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/12596937712.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52876055892.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/argumentative_essay_graphic_organizer_for_high_school.pdf
    • https://cdn.shopify.com/s/files/1/0452/5948/9442/files/comparative_and_superlative_adverbs_worksheets_5th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0432/2616/9503/files/jigeguv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000546a.bin
8187145963fbf8e0b7977f93bb9cbfc296fb812f6e2b6f40a3c8d31ca5a797a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x546A 6744 bytes
font_01_sfnt_off00006551.bin
b627e4431652e0a090163ca49a77fc95e7b7d061287dad505b13a3001c4b3423
pdf-font-stream PDF embedded font (sfnt) at offset 0x6551 5040 bytes
font_02_sfnt_off0000766c.bin
668a947b59de9ce907a38f3b99362ea1497c14e01f7c3b7995d3aaac28f06ecb
pdf-font-stream PDF embedded font (sfnt) at offset 0x766C 9988 bytes