Malicious PDF — malware analysis report

Static analysis result for SHA-256 a12d68158147efe8…

MALICIOUS

PDF

45.7 KB Created: 2020-09-16 00:19:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a07d9cbdd894754e4100e5525165b9eb SHA-1: e8aa25dee3699d89525ffa889eb65ac12ef0a3b6 SHA-256: a12d68158147efe8bfa0424e87a258d1b04ffe4e3dcc7ee28206c1d30339e704
160 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm and a specific lure related to payment redirection, indicating a business email compromise tactic. The primary malicious link, https://ttraff.link/pify?keyword=iphone+5+user+guide+pdf, is designed to redirect the user to potentially harmful content. The document body, though heavily obfuscated, contains embedded URLs that are part of this link farm.

Heuristics 4

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.link/pify?keyword=iphone+5+user+guide+pdf
    • http://xakobi.yogazencenter.com/uploads/1/3/2/6/132682871/demoxa_nirojagave_wodev_relesojarede.pdf
    • http://files.curranscorner.com/uploads/1/3/2/8/132815002/vipiti.pdf
    • http://pevidi.sssgc.org/uploads/1/3/1/4/131454766/5711641.pdf
    • http://begupu.newwoodturners.org/uploads/1/3/2/7/132740267/zoboregekalamojaba.pdf
    • https://static.usrfiles.com/ugd/e02969_9b99db16fa8c495bbe897bdc52b2b8c2.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_b8c787d33f2f42acbe5727e73ff8640e.pdf
    • https://static.usrfiles.com/ugd/c1615c_04b8233201374e87801b5c13b4ba9f91.pdf
    • https://static.usrfiles.com/ugd/b8c837_15216b0e15844e7fbff76eea20b523a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_682d915c828e49ccae42f5eabca10abc.pdf
    • https://cdn.shopify.com/s/files/1/0433/5812/6245/files/27270478328.pdf
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/cognos_11_active_reports_tutorial.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_off00006917.bin
ce22c8eaa1f53a77d563481fc3f0abc202627ce0e69ac912df19b60822d178aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6917 3724 bytes
font_01_sfnt_off00007654.bin
ddd5fca7db85052d275eef5ce4b47d4497b1bc79a166eb02db67347d6747ebc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7654 5124 bytes
font_02_sfnt_off000087c1.bin
dfe129f9d2842ee3e0bfd2ad75ac63a40af3e6e748d6d5f8c0d1abc5b547595b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87C1 9964 bytes

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