Malicious PDF — malware analysis report

Static analysis result for SHA-256 db764bae9a8e8bef…

MALICIOUS

PDF

36.7 KB Created: 2020-08-30 01:32:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75ea9cfbae723320904c65fc918ade16 SHA-1: 792a43128e68825fb4c285b55ed29396ab8f586d SHA-256: db764bae9a8e8bef5ac1fbce7cd0fe1c8f64694037ed3b10b9dce46628423df5
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=paint+pop+3d++free'. This indicates the document's primary purpose is to redirect users to potentially harmful websites. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. No scripts were extracted from this sample.

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/wix?keyword=paint+pop+3d++free
    • https://static.usrfiles.com/ugd/73f3b0_f84c9229062f48d698fbcc762846e393.pdf
    • https://static.usrfiles.com/ugd/b8c837_3336346775d04b2ab1b45fb6a047ebf8.pdf
    • https://static.usrfiles.com/ugd/b8c837_905e9cdaf7a34985affe289ff31e9f70.pdf
    • https://cdn.shopify.com/s/files/1/0431/8714/2818/files/62015136725.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2836/files/77455612328.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/sigutovogek.pdf
    • https://cdn.shopify.com/s/files/1/0447/4827/5863/files/cycleops_fluid_2_trainer_instruction_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/4364/9698/files/30850219891.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kexikebesadunav.pdf
    • https://cdn.shopify.com/s/files/1/0452/7544/7458/files/bowers_wilkins_formation_wedge_australia.pdf
    • https://cdn.shopify.com/s/files/1/0432/1689/6159/files/statistical_methods_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/medozajepegupadubatatufa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0066/8065/files/49156860765.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_off0000489e.bin
9339085666307400a5170f7f57050fe70b969c69b63569e5d99b916d9eece767		 pdf-font-stream PDF embedded font (sfnt) at offset 0x489E 4992 bytes
font_01_sfnt_off0000599a.bin
fa98316bad0ee393e4244be63b1d230beb4724cf855be96ad4f2c87a5b302ae2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x599A 2140 bytes
font_02_sfnt_off00006374.bin
eab26ee87d70cc8737973294440567ba09b29ccf12c70ac56e3dab4aef7d1faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6374 10128 bytes

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