Malicious PDF — malware analysis report

Static analysis result for SHA-256 932738eaec5a7611…

MALICIOUS

PDF

39.9 KB Created: 2020-08-19 21:28:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4790b4a5e3f69b3e9ee7680be9ca0778 SHA-1: c59c35638e2c815093694bbca84c4257718692a4 SHA-256: 932738eaec5a76110b68042640df09ac9c9f3a8d264801024672c153b0cf43f7
120 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 'ttraff.cc'. This URL is used in conjunction with a link farm of numerous PDF files hosted on Shopify, suggesting a coordinated effort to distribute malicious content or phish users. The document body contains text related to 'Administrador de archivos apk android', indicating a potential lure for users seeking such applications.

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=administrador+de+archivos+apk+android
    • http://saruga.u-surge.net/uploads/1/3/2/3/132302921/6890270.pdf
    • http://files.illumebloomskincare.com/uploads/1/3/1/6/131637308/7536004.pdf
    • http://files.kevinlow.net/uploads/1/3/0/7/130739369/dab9ad47f98.pdf
    • http://files.androidtvperth.com/uploads/1/3/1/4/131438397/vepow-fuwoside-fusevaxedewagi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4794/3330/files/blossoms_of_the_savannah_summary_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5973/9814/files/3407968886.pdf
    • https://cdn.shopify.com/s/files/1/0430/2602/2554/files/73791346136.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rerivavegexem.pdf
    • https://cdn.shopify.com/s/files/1/0434/5266/1926/files/bemo_s_ultimate_guide_to_casper_test_prep.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/babaduwegikasajan.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3308/files/46000422849.pdf
    • https://cdn.shopify.com/s/files/1/0428/8918/3398/files/netuze.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_off00005d02.bin
45c6692999c3b4b5e3bd404c9443245d71c9beb90a5cbd2b82bc98701b418e46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D02 5396 bytes
font_01_sfnt_off00006f2e.bin
f4a4f9de9551f1161770d80b51079b38dfc56e79efe9b8becd22d0dd5eaecff2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2E 11052 bytes

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