Malicious PDF — malware analysis report

Static analysis result for SHA-256 96688d40b8b93a03…

MALICIOUS

PDF

42.7 KB Created: 2020-08-14 12:33:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4efe2fb981b63e593a5f311f179ddc3a SHA-1: ce2f4fc81f220eb3b531eba53738112271c20eb2 SHA-256: 96688d40b8b93a033394da48d0c2c93c9b85eedf556484917048421ecc653e97
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/wb?keyword=maritime%20radio%20course%20pdf'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links, many pointing to cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'Maritime radio course pdf', suggesting a lure to trick users into clicking the malicious link. 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.cc/wb?keyword=maritime%20radio%20course%20pdf
    • http://files.saugbaggersales.com/uploads/1/3/1/0/131070291/714432.pdf
    • http://files.americaninfousa.net/uploads/1/3/2/6/132681863/98af54b1c15.pdf
    • http://bivorupu.paynechapelamec.com/uploads/1/3/1/8/131857419/sinewutevufusiva.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/zunerekiruzogezugekopin.pdf
    • https://cdn.shopify.com/s/files/1/0435/9494/0573/files/86918539604.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/aflatoxinas_en_cereales.pdf
    • https://cdn.shopify.com/s/files/1/0433/2063/9646/files/46289059408.pdf
    • https://cdn.shopify.com/s/files/1/0438/2287/4781/files/difference_between_pedagogy_and_andragogy.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/gopojejopabejitabuti.pdf
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/sovenubofawal.pdf
    • https://cdn.shopify.com/s/files/1/0432/9390/0958/files/rolelaxodenarizipifa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3429/5966/files/37022323852.pdf
    • https://cdn.shopify.com/s/files/1/0427/9658/1020/files/44283249375.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_off00005c48.bin
7def3afe9208e018f298a33c5f67a6a9d17ecb402d93c22591b12b694e758ed9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C48 5052 bytes
font_01_sfnt_off00006d7b.bin
9d76099e97103b557bdaa1c50e3fd61f8f7153324985166c7ec78e173ea371a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7B 10180 bytes
font_02_sfnt_off00008fdd.bin
8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FDD 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.