Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f7e83200e61a414…

MALICIOUS

PDF

49.8 KB Created: 2020-08-31 17:57:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 580ad9a885089e3201687ba08e9cb384 SHA-1: a9924bcc55b40ada4626e9599aeb1fc7498d7b7f SHA-256: 4f7e83200e61a41460185edefe6f45adb408454d39c66bd1acf7636c7a161fa5
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.me/wix?keyword=class+guide+wow+bfa'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded external links. The document body, though partially corrupted, also contains the same malicious URL, reinforcing the intent to lure the user to a potentially harmful site.

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=class+guide+wow+bfa
    • https://static.usrfiles.com/ugd/2f8cea_849c0b1d991d441cb253d4932ee59e16.pdf
    • https://static.usrfiles.com/ugd/911c12_8535bab3110b47ea99f30b2d5016730b.pdf
    • https://static.usrfiles.com/ugd/b8c837_8706d0520cde4725995667a63ef28ff4.pdf
    • https://cdn.shopify.com/s/files/1/0436/1230/7618/files/pikudopudiviriboduwerafon.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/the_vmas_2015_full_show.pdf
    • https://cdn.shopify.com/s/files/1/0440/0467/1646/files/baitul_hikmah.pdf
    • https://cdn.shopify.com/s/files/1/0429/4731/3827/files/pozunebugamuxolo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/wondershareelement_6_professional_arabic.pdf
    • https://static.usrfiles.com/ugd/e643da_429f447bf5d642fb8e7bee656ee67733.pdf
    • https://static.usrfiles.com/ugd/3e87bf_67d17b67195e4623a5fb36f9ec0c1f3f.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/momuxazowopugi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3345/1926/files/bachon_k_islami_naam_uska_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0432/6929/2188/files/ihome_clock_radio_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/jusojozunovakirusifok.pdf
    • https://cdn.shopify.com/s/files/1/0434/5895/3369/files/dha_bahawalpur_map.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_off00007849.bin
541607e7342b3e025fc1e5c5a749fae7baa4ea02d132820d89b0a8411cfa87b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7849 5116 bytes
font_01_sfnt_off000089d9.bin
2cb07664db9d7b07ecdd19c157466ada3e3fb11b542275c4e45f2377c39f7f0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89D9 15176 bytes

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