Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e47a25127dcb725…

MALICIOUS

PDF

43.9 KB Created: 2020-08-07 13:41:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4faf61b04479de825168720fd067278c SHA-1: 58014993dd4b6a2313af71a94c48c6c9281dadfa SHA-256: 3e47a25127dcb725de38b95f0248ba72ad1898c32561ae73555d51b5a710db1a
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=add+png+to+pdf+acrobat+x'. Additionally, it features a large number of embedded links, many hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning attempt. The document body contains garbled text but includes the same malicious URL, reinforcing the lure. The primary attack pattern involves redirecting the user to malicious infrastructure.

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=add+png+to+pdf+acrobat+x
    • http://files.ancientwavestudios.com/uploads/1/3/0/7/130775837/kodivamilukozad_wesaberebujozu.pdf
    • http://files.quercytours.com/uploads/1/3/2/7/132740463/ropozagif.pdf
    • http://files.kaitlinrphotography.com/uploads/1/3/0/7/130775180/1565e67be.pdf
    • https://cdn.shopify.com/s/files/1/0433/4488/7966/files/bomibagagu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3176/3864/files/26100183459.pdf
    • https://cdn.shopify.com/s/files/1/0438/0455/7469/files/40618081621.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wetidolurat.pdf
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/biochemistry_by_donald_voet.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/xosuxarajodutufof.pdf
    • https://cdn.shopify.com/s/files/1/0435/6059/9701/files/assembly_language_programming_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/1098/2041/files/pelakuluvujizakadibasadod.pdf
    • https://cdn.shopify.com/s/files/1/0428/4583/1335/files/98901869054.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34530012154.pdf
    • https://cdn.shopify.com/s/files/1/0433/8414/4037/files/evaluation_orthographe_cm1.pdf
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/gmail_encrypted_email.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_off00005a7c.bin
6a9a659f9008b539a6a1fa639861e2349755990e2498757f59b8c84265c96c77
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7C 5308 bytes
font_01_sfnt_off00006ca5.bin
7cbf25be11f3a5702b996242b42a4202e7620be4e36304901c91708dd3d94f90
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA5 9356 bytes
font_02_sfnt_off00008ccc.bin
4189bb5d82d37c3b06c761c00ca3b3c8a7a7312639514cd6a20481e76712d457
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCC 16388 bytes