Malicious PDF — malware analysis report

Static analysis result for SHA-256 d65870bbc88837b7…

MALICIOUS

PDF

70.3 KB Created: 2020-07-30 18:33:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 935906f421fe2d04df18fe54949dd480 SHA-1: dd75971d3734f5d612330b5a1d1e2adf6601be73 SHA-256: d65870bbc88837b7a7f500ce6585842e0733f632d11a5af080b053895b8bc7f2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link that redirects to a known malicious domain, ttraff.com. This domain is used in a link farm strategy, as indicated by the presence of numerous external PDF links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains text related to 'Basel 3 capital requirements pdf', suggesting a lure to disguise the malicious intent. The primary attack pattern involves tricking the user into clicking a malicious link.

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.com/pify?keyword=basel+3+capital+requirements+pdf
    • http://files.janiceschoultzmudd.com/uploads/1/3/0/8/130814902/wolovusinokatu.pdf
    • http://files.restartinc.org/uploads/1/3/2/6/132695730/4e17b6a6eeb.pdf
    • http://files.mibedandbreakfast.com/uploads/1/3/2/6/132696113/88cfddeacf9.pdf
    • https://cdn.shopify.com/s/files/1/0428/2508/9191/files/jumebatas.pdf
    • https://cdn.shopify.com/s/files/1/0437/3705/5393/files/warelapifigomif.pdf
    • https://cdn.shopify.com/s/files/1/0435/9369/5395/files/pujajizutogive.pdf
    • https://cdn.shopify.com/s/files/1/0434/3696/6055/files/45096429957.pdf
    • https://cdn.shopify.com/s/files/1/0431/3051/9716/files/15362198439.pdf
    • https://cdn.shopify.com/s/files/1/0432/6319/7337/files/tasawasefinulojufetuduj.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0201/files/3890155797.pdf
    • https://cdn.shopify.com/s/files/1/0432/0159/3505/files/64734773025.pdf
    • https://cdn.shopify.com/s/files/1/0427/9461/4940/files/tobavepokufewusexu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/35779090005.pdf
    • https://cdn.shopify.com/s/files/1/0438/5210/3845/files/dosabatamivajisumekigipi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/jobalofewa.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_off0000d46e.bin
47a5c9533b8ae67ac9b8e0236f21c57202b8e6a36d364316df681a381ba2fdd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD46E 5412 bytes
font_01_sfnt_off0000e6ad.bin
fd38dd78fb3f0262f490b94814374bd593c03502978615452bff61cdc5185a4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AD 11012 bytes

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