Malicious PDF — malware analysis report

Static analysis result for SHA-256 c20dba77aa0b90b0…

MALICIOUS

PDF

49.2 KB Created: 2020-08-14 23:07:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9184236884842f05a2b04c320adc3fd9 SHA-1: d1c9a944385165ffaed93bd1e6e6e2fb031761d0 SHA-256: c20dba77aa0b90b0dbb9b863cff8b44a86ea86c4ea68deffe72bb12d9930cdac
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including one pointing to a known malicious redirector at `ttraff.cc`. The document body, though heavily obfuscated, contains text referencing 'Devexpress report designer webforms' and 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The primary attack pattern involves redirecting the user to malicious infrastructure via embedded links.

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=devexpress+report+designer+webforms
    • http://files.southernoutdoorrestoration.com/uploads/1/3/2/6/132682042/wewotupigukotune.pdf
    • http://files.mctcarpetcare.com/uploads/1/3/1/4/131453213/sobuji_lamejoboriwa_metepukipijejun_zujifawazezad.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1808/files/2962045911.pdf
    • https://cdn.shopify.com/s/files/1/0439/3051/7672/files/annamayya_movie_songs_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/dupupemufuxoboriwijuveba.pdf
    • https://cdn.shopify.com/s/files/1/0428/6464/0159/files/52674400889.pdf
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/92426329196.pdf
    • https://cdn.shopify.com/s/files/1/0431/0089/7440/files/34265949775.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujar.pdf
    • https://cdn.shopify.com/s/files/1/0441/3492/4440/files/63420080867.pdf
    • https://cdn.shopify.com/s/files/1/0431/9445/0078/files/remouse_license_key_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/6668/6629/files/93906078037.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_off000078a1.bin
b86b8d4579125cdc77e57ca9a200eb99933a2665858a49a1212a30f9122196a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78A1 5476 bytes
font_01_sfnt_off00008b4b.bin
6defff0c33627b4371ae412696e9c00c910efe38b17e0baf3fca45c65e8bfdf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4B 13924 bytes

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