Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea148be2062a71e7…

MALICIOUS

PDF

45.4 KB Created: 2020-08-31 14:24:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a5a9ce8646ba578724b42034c01b38c SHA-1: bda5658eb38846a73f5b0b6072036dd568863a38 SHA-256: ea148be2062a71e7dea7661ea55730078c84da103363b8f19c733ea09e3e6046
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a technique often used for SEO poisoning or to direct users to malicious sites. One of the primary links, https://ttraff.com/pify?keyword=arraylist+vs+array+android, is identified as a malicious redirector. The document body itself is heavily obfuscated and contains this same URL, suggesting the primary intent is to redirect the user to potentially harmful content.

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=arraylist+vs+array+android
    • https://cdn.shopify.com/s/files/1/0431/5037/7126/files/spoken_english_conversation_through_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0435/8579/8301/files/geliraga.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/64954122361.pdf
    • https://cdn.shopify.com/s/files/1/0432/8708/5222/files/adobe_indesign_cs4_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0432/8521/7436/files/zazadugutovitivir.pdf
    • https://static.usrfiles.com/ugd/921909_43b9148da3064d5295a64b0c8ce89dcf.pdf
    • https://static.usrfiles.com/ugd/b8c837_3be500aae3ec4f30908e389f6d583f57.pdf
    • https://static.usrfiles.com/ugd/911c12_8535bab3110b47ea99f30b2d5016730b.pdf
    • https://static.usrfiles.com/ugd/b8c837_73b8128cf8eb4dcb8ecc122c4325285c.pdf
    • https://static.usrfiles.com/ugd/b8c837_6f776df66d0d40f7ade6c47fe730638f.pdf
    • https://static.usrfiles.com/ugd/b8c837_ad32f1790ac84b249115abf8fa40ad1a.pdf
    • https://static.usrfiles.com/ugd/6d59ab_8f8f77872d72456591aa752108b1c019.pdf
    • https://static.usrfiles.com/ugd/fef806_f3012f983d9246c9abd71460765fbd67.pdf
    • https://static.usrfiles.com/ugd/fb5067_4a0d797889fd4ff8afa4014bb6dd8e8d.pdf
    • https://static.usrfiles.com/ugd/191a6d_8037dffcf7bc42158584518ba89510ce.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_off00006922.bin
4794dc55f0da0feae1e73be761117f41e5a084bd3ebb8e12b4e7e99e1bf8a3a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6922 4968 bytes
font_01_sfnt_off00007a1f.bin
7ce562573f79db94ea144e1631d2c839aa1ac6fd169a3d2bfafd3e9230000c09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1F 15208 bytes

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