Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb2c8ce655da94bf…

MALICIOUS

PDF

47.1 KB Created: 2020-08-01 21:05:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 527cf343b61837abdc8cbe30da9c0b19 SHA-1: 182810f6da936592bf3ec1f41bd364eb2220b434 SHA-256: cb2c8ce655da94bfbb4808447f6d28be8366e3b2054f31d7783ff96186227e4a
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs, likely for SEO manipulation or to obscure malicious redirects. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=frys+com+rebates', suggesting a phishing or scam lure related to 'Frys com rebates'. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution mechanisms.

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=frys+com+rebates
    • http://files.lovedxluna.com/uploads/1/3/1/4/131452878/femebu-sejutajabawime-lofobasu.pdf
    • http://files.lindyzart.com/uploads/1/3/1/6/131606552/turexuxekiruxax-jozudafeteduw-torigodugu.pdf
    • http://files.pioneerplace.org/uploads/1/3/2/7/132740337/176a171a744.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/wujuvuzagenubibalumudiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8205/5833/files/97439284075.pdf
    • https://cdn.shopify.com/s/files/1/0432/4435/5739/files/fepuxizuwadidu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2154/1271/files/kunifigiridirusebufaligu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/rejiv.pdf
    • https://cdn.shopify.com/s/files/1/0429/4089/1292/files/heathkit_sb-_200_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/nuparudenaluxapibulebow.pdf
    • https://cdn.shopify.com/s/files/1/0435/9595/6386/files/65944674800.pdf
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/sufatiri.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32600433864.pdf
    • https://cdn.shopify.com/s/files/1/0430/5023/8101/files/11593272156.pdf
    • https://cdn.shopify.com/s/files/1/0435/7737/6936/files/wolevuvitukavixanuxukuwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/0687/0183/files/jidarimufem.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_off00006e75.bin
6304d43b31fb76de00ce11e630ffdb8a57bd6a08677c4cbfe036acd58e6509b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E75 4744 bytes
font_01_sfnt_off00007e91.bin
df083238449de65a00a18c8a93f8c1118c2ce6ab2b144b3f9824c5fe621e88bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E91 10332 bytes
font_02_sfnt_off0000a1c6.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA1C6 4324 bytes