Malicious PDF — malware analysis report

Static analysis result for SHA-256 94b3464822efd8fd…

MALICIOUS

PDF

87.1 KB Created: 2020-08-05 04:27:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76951a5fd89fca74aa48b3ea637656d5 SHA-1: c69be3cfa7cb201c0661093fbfc9f3d82f0a68c7 SHA-256: 94b3464822efd8fdd8ad084923f150215878f2c76127be4eac19e0ecc951b93b
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link. The embedded URL points to 'ttraff.cc', which is known for redirecting to malicious sites. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also contains a large number of external links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or distributing malicious content.

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=calendario+serie+a+19+20+pdf
    • http://files.gretamyersstrings.com/uploads/1/3/0/7/130775346/tisumebox_gikosasolifale.pdf
    • http://files.rutherglenlamaisonstarnaud.com/uploads/1/3/1/3/131382274/3857754.pdf
    • http://files.jhamrick.com/uploads/1/3/1/6/131607321/5307036.pdf
    • https://cdn.shopify.com/s/files/1/0437/5108/0085/files/67685532445.pdf
    • https://cdn.shopify.com/s/files/1/0431/4575/6821/files/gupopisalulawipuke.pdf
    • https://cdn.shopify.com/s/files/1/0437/1329/8581/files/54635594402.pdf
    • https://cdn.shopify.com/s/files/1/0433/4364/2773/files/79409114407.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8970/files/wekatezolobifezejiner.pdf
    • https://cdn.shopify.com/s/files/1/0440/5251/2918/files/chief_keef_faneto_mp3_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/2733/2245/files/tibirudisodipupitixapof.pdf
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/27253481229.pdf
    • https://cdn.shopify.com/s/files/1/0432/0188/8416/files/basic_linux_networking_commands.pdf
    • https://cdn.shopify.com/s/files/1/0430/3310/0439/files/tifatemabotalalixevav.pdf
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/mofegugufopolulilonev.pdf
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/fegukakaragupur.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9120/files/shrug_copy_paste.pdf
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/xatevexifirukimakebiragis.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_off0000fcac.bin
9a0fc6d97ea0d2b74e9a4446581868e08aa47a258762d5f3e00cc0c36167ba68
pdf-font-stream PDF embedded font (sfnt) at offset 0xFCAC 5248 bytes
font_01_sfnt_off00010e84.bin
fdbebf1e94c28c1a9e5cdf513e2a0ce2f6213a76fd1d7a57421ba3248967af65
pdf-font-stream PDF embedded font (sfnt) at offset 0x10E84 16008 bytes
font_02_sfnt_off00013eb6.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x13EB6 4324 bytes