Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdde7ad40bfdd294…

MALICIOUS

PDF

47.0 KB Created: 2020-08-19 03:20:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c14d714b050b8471c285cbdc877d141 SHA-1: 99681cb0c18915d3c2a82021b28bf455181bc277 SHA-256: cdde7ad40bfdd2945565c8a8f4c5c4b55c52463f1f4650fd52bde39e93709f21
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This indicates the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting. The presence of numerous other Shopify links suggests a link farm technique to obscure the malicious destination.

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=bill+of+lading+format+for+export
    • http://files.jasonleary.com/uploads/1/3/1/6/131606694/49033351fcd.pdf
    • http://files.mikesequipment.com/uploads/1/3/2/6/132682338/vanadisifizon-wopesilori-tuxirupu-nelusal.pdf
    • http://susebuni.michelephoto.com/uploads/1/3/0/8/130814179/431963.pdf
    • http://mitejo.eimanelgibreen.com/uploads/1/3/0/8/130874222/digilazu-xalipuxuzapuzol-pijomijisexi-jexubate.pdf
    • https://cdn.shopify.com/s/files/1/0436/7722/1017/files/1019755817.pdf
    • https://cdn.shopify.com/s/files/1/0435/4847/5541/files/saudi_osteoporosis_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0428/9173/9295/files/14186152774.pdf
    • https://cdn.shopify.com/s/files/1/0435/8311/1323/files/68610452743.pdf
    • https://cdn.shopify.com/s/files/1/0433/6225/5013/files/91238031685.pdf
    • https://cdn.shopify.com/s/files/1/0432/5939/6251/files/buremudujebabozoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/3092/1895/files/lusezawubotobuwepa.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/farm_theme_birthday_sheet_cake.pdf
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/musojas.pdf
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/wezevup.pdf
    • https://cdn.shopify.com/s/files/1/0428/1915/8183/files/fupiropamimadewenage.pdf
    • https://cdn.shopify.com/s/files/1/0430/6586/8437/files/verbal_ability_test_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/9443/2161/files/giguzino.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_off00006d95.bin
41fa926bf4bba0f518a4666501a4ea9bb0c6d52eb84f6fed9a5e3ec08c8aee05
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D95 5088 bytes
font_01_sfnt_off00007ec4.bin
a4b8fe983f3015f2b7b98b9e7b3fa5e9449d0c772677b700d984725b3974e9bb
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC4 9956 bytes
font_02_sfnt_off0000a0d7.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0D7 4324 bytes