Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f72d8ee178bfc47…

MALICIOUS

PDF

78.1 KB Created: 2020-08-23 10:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01f5d0e30db3a6704112cf70a8c3c769 SHA-1: 2c4d88ee8ee8e53c9b90375f15195b0677373f01 SHA-256: 3f72d8ee178bfc47e500fe89aaabfa57e4e63ffc888c7dd31688e0c5b3bcf6d0
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=all+information+about+taj+mahal+in+english'. This URL is embedded within the document body, disguised as information about the Taj Mahal. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on cdn.shopify.com. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=all+information+about+taj+mahal+in+english
    • http://duxov.thebasslaboratory.com/uploads/1/3/2/6/132696030/4719856.pdf
    • http://bunir.lynncoop.com/uploads/1/3/0/7/130775540/joxejokoko.pdf
    • http://files.evilgeniusentertainment.com/uploads/1/3/2/6/132695492/9307751.pdf
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/88901116521.pdf
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/solid_liquid_gas_worksheet_2nd_grade.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/cricket_rules_and_regulations.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/garth_brooks_torrents.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/sally_spa_games.pdf
    • https://cdn.shopify.com/s/files/1/0428/2122/2567/files/car_games_parking.pdf
    • https://cdn.shopify.com/s/files/1/0434/2585/7703/files/crawling_linkin_park_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0439/4611/5230/files/piwalufemapujomujo.pdf
    • https://cdn.shopify.com/s/files/1/0436/6876/6873/files/somedorodapuzanamalu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/abc_chemistry_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5584/0409/files/grow_rpg_walkthru.pdf
    • https://cdn.shopify.com/s/files/1/0432/5185/9611/files/56978952413.pdf
    • https://cdn.shopify.com/s/files/1/0433/8394/7427/files/vuzut.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_off0000d9cc.bin
fe0eac0b32031a18047947de84023a6dc4a8a65ab83e0d8b29596f46292f6e19
pdf-font-stream PDF embedded font (sfnt) at offset 0xD9CC 5388 bytes
font_01_sfnt_off0000ebf4.bin
67b299fd1ae87b0fe7de6c1bf015f457510b2905364f30829019e24d6f202605
pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF4 11144 bytes
font_02_sfnt_off000111e4.bin
c01c1e76bfc3c7cc47aa59acd012f99149a2da8dd295edee2e522ec9429d20ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x111E4 17044 bytes