Malicious PDF — malware analysis report

Static analysis result for SHA-256 570eae839a3f324e…

MALICIOUS

PDF

46.2 KB Created: 2020-09-16 16:22:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bab3f2fbbdb8bd8410618c719294c3cd SHA-1: 81c3688b2ed726b4048fdf4be96659278246f4a3 SHA-256: 570eae839a3f324e7bd51c9e34ea2b1f809a3b20e5adf0c3448b3ee67c0c0cf5
150 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or redirection strategy. The primary URL, https://ttraff.link/wix?keyword=persona+4+golden+perfect+ending+guide, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the game 'Persona 4 Golden' and the malicious URL, indicating a lure to entice users to click the malicious link. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.link/wix?keyword=persona+4+golden+perfect+ending+guide
    • http://files.savoringcharlotte.com/uploads/1/3/1/6/131606953/e4c29df23d2.pdf
    • http://files.onthespotjackson.com/uploads/1/3/1/6/131636833/sakupikate.pdf
    • http://files.crossncrown.org/uploads/1/3/1/8/131857390/21981a4748.pdf
    • https://74320dd4-877b-4071-b8c8-2ad1bc8ef582.filesusr.com/ugd/98e2de_3b8fa004c81f48b8a67de9abad40af84.pdf?index=true
    • https://d4002523-a92b-469b-9f84-e739401b90ad.filesusr.com/ugd/668a47_a0bfb1d6fd7041918a09e08c39b782d6.pdf?index=true
    • https://8147ce18-b5a2-4da1-acde-acae8406dede.filesusr.com/ugd/58a813_d4dc4ca0a3c54faf8ce330b15d344de0.pdf?index=true
    • https://93863039-4abe-4974-9897-7dbf2f2729a0.filesusr.com/ugd/162fe6_abd5c4421fb14a369c9a3f0f0aedc731.pdf?index=true
    • https://074845b9-09c9-4e49-88f3-9cd3027ece61.filesusr.com/ugd/938c70_dc8d16f41db94fce9441e99269c8a84a.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0437/5108/0085/files/format_usb_flash_drive_allocation_unit_size.pdf
    • https://cdn.shopify.com/s/files/1/0435/3920/2207/files/37192461799.pdf
    • https://cdn.shopify.com/s/files/1/0470/6752/9384/files/kupetukebuvozakefazopaxu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/anglesey_abbey_map.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/xujokiviwozewado.pdf
    • https://cdn.shopify.com/s/files/1/0434/6154/2045/files/17384136556.pdf
    • https://cdn.shopify.com/s/files/1/0434/0659/0104/files/56061599231.pdf
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/fifovorif.pdf
    • https://cdn.shopify.com/s/files/1/0433/8017/9100/files/arteria_cartida_externa.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_off00007447.bin
833504f3f37b5e81d13e4e69758f9580a3d232196d7a03057fa826c38beebc68
pdf-font-stream PDF embedded font (sfnt) at offset 0x7447 5412 bytes
font_01_sfnt_off000086cb.bin
6690cd85a6c614a7bb7e12fc9560f78e495596031ba3e596118e8554545b86d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x86CB 10780 bytes