Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea82033c7235256a…

MALICIOUS

PDF

41.5 KB Created: 2020-08-23 05:54:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9562a87d5b5953f0dcb4f0b1c2a170bc SHA-1: 219558df72eb787a6c680145981d4677fdae892f SHA-256: ea82033c7235256a9db60ea8c1cec736909db6c684ec472c696ee789a1e8c3d2
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with a critical heuristic identifying a malicious redirector. The document body and embedded links suggest a lure to download cracked software, redirecting to a malicious URL. The presence of a link farm further supports a malicious intent to drive traffic to potentially harmful sites.

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=avira+antivirus+pro+apk+cracked
    • http://files.purelightwindowcleaning.com/uploads/1/3/0/7/130775712/1196040.pdf
    • http://files.amandaauerbach.com/uploads/1/3/2/6/132681586/vivigasexubugab.pdf
    • https://cdn.shopify.com/s/files/1/0435/3579/4327/files/wojek.pdf
    • https://cdn.shopify.com/s/files/1/0437/1932/7896/files/33718017493.pdf
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/festival_internacional_cervantino_2020.pdf
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/list_of_government_bams_colleges_in_maharashtra.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/joxuforapisanejivaget.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2381/files/cheapest_android_phones_on_jumia.pdf
    • https://cdn.shopify.com/s/files/1/0438/1533/8144/files/99112702653.pdf
    • https://cdn.shopify.com/s/files/1/0433/9105/8078/files/60407594670.pdf
    • https://cdn.shopify.com/s/files/1/0463/2389/2381/files/kuzawedobakuwam.pdf
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/96790291095.pdf
    • https://cdn.shopify.com/s/files/1/0432/1692/8923/files/nigujup.pdf
    • https://cdn.shopify.com/s/files/1/0431/2524/4065/files/penano.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_off0000648b.bin
d4052318ccc401d324d431cd6351a400c5e0c78603e833e1768c8a8070c281e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x648B 5148 bytes
font_01_sfnt_off0000761a.bin
e7283cdc177ac96de5f15fc3d8b462714c22598ae22a60549e956497470c2c9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x761A 10292 bytes

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