Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa09116a6e789cc…

MALICIOUS

PDF

65.3 KB Created: 2020-08-20 22:27:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4719e979687172da97043315a193cf8f SHA-1: fe265103a2170ce219a5c57e0e52cb04e43192b3 SHA-256: cfa09116a6e789cc729af3e2244309056b78d800ad4552a86139a73e95314c7f
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The primary URL, 'https://ttraff.cc/pify?keyword=adc+post+full+form', is identified as a malicious redirector. Another heuristic indicates a PDF link farm, with 'https://cdn.shopify.com/s/files/1/0430/8631/5682/files/36624171134.pdf' being the first URL in this farm. The document body contains garbled text but also includes the redirector URL, suggesting it's part of the lure.

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=adc+post+full+form
    • http://files.paulsfranchiseleague.com/uploads/1/3/1/4/131438249/kabuvoxije_kuvorenuzixuw_raxejusub.pdf
    • http://files.littlefeatherfoundation.com/uploads/1/3/0/7/130740231/fojosiz.pdf
    • http://pegusemo.simplywine.com/uploads/1/3/2/8/132815806/pukowomutovuwokoj.pdf
    • http://files.heatherbrener.com/uploads/1/3/0/8/130814169/ef7da9d64e098f.pdf
    • http://files.abortion-decriminalisation.org/uploads/1/3/1/3/131380612/4258888.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/36624171134.pdf
    • https://cdn.shopify.com/s/files/1/0432/1103/0683/files/21000706897.pdf
    • https://cdn.shopify.com/s/files/1/0428/8138/4604/files/google_sheets_sumif_across_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/bugeriduvatab.pdf
    • https://cdn.shopify.com/s/files/1/0447/9392/1685/files/insertar_imagen_en.pdf
    • https://cdn.shopify.com/s/files/1/0438/6252/4069/files/30722823197.pdf
    • https://cdn.shopify.com/s/files/1/0431/8196/5474/files/45510455240.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/51073553930.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.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
stream_005_off0000b473.bin
492df2616ede29e6eef835142b973800b8afce1bb9de236db97ca9cdb5544789		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB473 8452 bytes
font_00_sfnt_off0000a349.bin
90439391b42819bc4e45f71461b64421f13316733a80346d605263690f224701		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA349 5080 bytes
font_02_sfnt_off0000cbd9.bin
f19bc60222a05bb127e560312121775706202367d9b3506012f7434686950bee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCBD9 13488 bytes

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