Malicious PDF — malware analysis report

Static analysis result for SHA-256 abc262ee02230358…

MALICIOUS

PDF

45.2 KB Created: 2020-08-18 20:28:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 546094dc319629afde2819b5ca9457f9 SHA-1: 3e2d7e4ba5a2352ed6a6132446aab1f80bacd406 SHA-256: abc262ee02230358287eea555cf991fe47617ceadb8cb5f17783703311d4399c
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains the URL 'https://ttraff.com/pify?keyword=fdv303n+data+sheet', which is likely the malicious redirector. The file also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO poisoning or to obscure the ultimate destination. The primary attack pattern is to lure the user into clicking the malicious link under the guise of a data sheet.

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=fdv303n+data+sheet
    • http://files.arizonadpsrp.org/uploads/1/3/1/4/131453897/zoxoxi.pdf
    • http://files.gulfcoasttransgenderalliance.com/uploads/1/3/2/6/132695339/beteguwufuvuganikel.pdf
    • http://files.jonnystills.com/uploads/1/3/1/3/131378942/kopoxo.pdf
    • http://files.thehouseofsufyan.com/uploads/1/3/1/4/131407802/6aec00ca67.pdf
    • https://cdn.shopify.com/s/files/1/0445/8138/8452/files/hit_em_high.pdf
    • https://cdn.shopify.com/s/files/1/0432/1230/8637/files/97492870599.pdf
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/22734881819.pdf
    • https://cdn.shopify.com/s/files/1/0432/9403/2025/files/67140661970.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/libikibezet.pdf
    • https://cdn.shopify.com/s/files/1/0435/2301/4824/files/astm_a182_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/3983/4791/files/bleak_house_charles_dickens_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0450/1677/6862/files/29756955954.pdf
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/turezasomixodipumavobal.pdf
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/15072441850.pdf
    • https://cdn.shopify.com/s/files/1/0434/7763/1126/files/85968744064.pdf
    • https://cdn.shopify.com/s/files/1/0433/0163/4213/files/english_vocabulary_with_definition.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_off000050d8.bin
32495a09e6418e169007f4ec83b3afb56593e8564167a34c7c6abff00f97d765
pdf-font-stream PDF embedded font (sfnt) at offset 0x50D8 5104 bytes
font_01_sfnt_off0000623d.bin
8e00feacedbf47cda63dce31d50a246e856f37fbd042c349228778f35fbadc55
pdf-font-stream PDF embedded font (sfnt) at offset 0x623D 15328 bytes
font_02_sfnt_off00009279.bin
d25a34a56be33791b66bd7dbe91ee772b39b89bee75ba0e64ef3ea6cb2c10b57
pdf-font-stream PDF embedded font (sfnt) at offset 0x9279 16260 bytes