Malicious PDF — malware analysis report

Static analysis result for SHA-256 adf3c6ebd1b907f0…

MALICIOUS

PDF

56.9 KB Created: 2020-08-03 10:24:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81c66831c2f4fe06011acd4d39c6c70e SHA-1: 5a67f42f9748a124b2e6a0a262eac52c23121a5d SHA-256: adf3c6ebd1b907f0c5ec37f122ea19fe78c4a2f5f21bff4794ab09c5cf5fe7b4
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a phishing or malware download page. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=form+i+730', suggesting a lure related to a form. The PDF also contains a large number of external links, many hosted on Shopify, which is characteristic of SEO link farm techniques used to obscure malicious activity.

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=form+i+730
    • http://files.memassweets.com/uploads/1/3/0/7/130738943/rulesibiv_xubederiz_datizilemeba_nubavida.pdf
    • http://files.danieljsheehan.com/uploads/1/3/1/8/131856125/3546182.pdf
    • http://kovefiter.chaddaviscounselingllc.com/uploads/1/3/0/8/130815009/1472633.pdf
    • http://files.thepisceannomad.com/uploads/1/3/1/4/131438418/zilurafidok.pdf
    • https://cdn.shop
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61066914906.pdf
    • https://cdn.shopify.com/s/files/1/0428/1230/9670/files/54800621993.pdf
    • https://cdn.shopify.com/s/files/1/0440/7099/4085/files/tirap.pdf
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/fodokelomujitupe.pdf
    • https://cdn.shopify.com/s/files/1/0434/4191/4006/files/76542246449.pdf
    • https://cdn.shopify.com/s/files/1/0439/0558/1211/files/70942801712.pdf
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/98861230249.pdf
    • https://cdn.shopify.com/s/files/1/0437/1965/5579/files/blockb_nillili_mambo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/75687200344.pdf
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/medejomika.pdf
    • https://cdn.shopify.com/s/files/1/0428/1729/0407/files/conflict_graphic_organizer.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_off000096f7.bin
63ca6c21b54594d8491c0842102c5ba257cc14c21c042f5ec4553c5368bbf403		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96F7 4236 bytes
font_01_sfnt_off0000a540.bin
1fc1a91ba750321e8ab05be354e1eb97199094d7364fc9da14f7ecd12ce25fa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA540 10456 bytes
font_02_sfnt_off0000c8c3.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C3 4324 bytes

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