Malicious PDF — malware analysis report

Static analysis result for SHA-256 eef872e7d5570697…

MALICIOUS

PDF

45.9 KB Created: 2020-08-09 00:30:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64044b4e38598c81668d27295f223e1f SHA-1: a7b93fa6d68c2c1d93b54e2b0af1c7c7a8d83938 SHA-256: eef872e7d55706971da7fec901011b262a8b3582569d0667778b5b0832de6feb
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a link farm hosted on Shopify. The primary malicious link, https://ttraff.cc/pify?keyword=cabell+s+blacklist+pdf, is a known malicious redirector. This suggests the document is designed to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

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=cabell+s+blacklist+pdf
    • http://files.denasheets.com/uploads/1/3/0/9/130969506/4063176.pdf
    • http://files.crackedbreakfasttruck.com/uploads/1/3/2/6/132682878/7840246.pdf
    • http://bobeputi.davideweed.com/uploads/1/3/1/6/131636612/gerab.pdf
    • http://files.advancedvedicastrologycourse.com/uploads/1/3/0/7/130776720/8a65c.pdf
    • https://cdn.shopify.com/s/files/1/0435/5771/6119/files/23100889270.pdf
    • https://cdn.shopify.com/s/files/1/0437/8597/8013/files/english_grammar_for_5th_class.pdf
    • https://cdn.shopify.com/s/files/1/0431/7655/8746/files/43196998167.pdf
    • https://cdn.shopify.com/s/files/1/0428/8803/6505/files/richard_dawkins_ancestor_s_tale.pdf
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/kulipasurubatogo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5562/0006/files/zuturutabavafu.pdf
    • https://cdn.shopify.com/s/files/1/0434/0727/8238/files/evanescence_everybody_s_fool_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0432/6958/7104/files/problems_on_ages_bankers_adda.pdf
    • https://cdn.shopify.com/s/files/1/0436/0775/2866/files/tkinter_python_3.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/2014_ford_fusion_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0454/6029/1742/files/personal_selling_process_steps.pdf
    • https://cdn.shopify.com/s/files/1/0434/0203/5351/files/zozusuniwavaxiles.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5749/files/chaucer_miller_s_tale.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_off00006798.bin
66a569aeb2b1b3ca93994ce7f1bedae045a9d6981104db90b4942f84da96b602
pdf-font-stream PDF embedded font (sfnt) at offset 0x6798 4852 bytes
font_01_sfnt_off00007828.bin
6b5012764dbf6bad550fa1e394439f402268a4a9e41d7d16538dbcc5af5d0d4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7828 10748 bytes
font_02_sfnt_off00009ccf.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9CCF 4324 bytes