Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed62464fed7d541b…

MALICIOUS

PDF

55.7 KB Created: 2020-08-22 02:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19e00b056587b622e4f5cae8ee4077d7 SHA-1: 3c7d7e5d945d0cc5c86b3cf65063413e026979c2 SHA-256: ed62464fed7d541beb0d5f5589d05599340a4f2d3c06d9ec7e4355037aeb8fc2
128 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment T1071.001 Web Protocols

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.cc. The document body, though heavily obfuscated, contains text related to an 'inventory audit report template' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous external links and the malicious redirector indicate a phishing or redirection attack.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=inventory+audit+report+template
    • http://files.pennysmithrealty.com/uploads/1/3/1/0/131070452/waxularekeluletu.pdf
    • http://dijorini.loupendergrast-mathiesonglass.com/uploads/1/3/0/9/130969862/810a825a87.pdf
    • http://wudabebo.tcounseling.com/uploads/1/3/1/4/131406082/wafurudubim.pdf
    • http://disixo.nannies-pearls.net/uploads/1/3/1/1/131164110/2478857.pdf
    • https://cdn.shopify.com/s/files/1/0435/5470/1463/files/que_es_aldea_global.pdf
    • https://cdn.shopify.com/s/files/1/0433/0301/0459/files/xarulosimikegekole.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7654/files/nigigoxazuxovedifi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9644/files/reduce_size_acrobat_reader_pro.pdf
    • https://cdn.shopify.com/s/files/1/0436/0221/5074/files/3007071960.pdf
    • https://cdn.shopify.com/s/files/1/0431/5647/1959/files/2893171205.pdf
    • https://cdn.shopify.com/s/files/1/0432/1860/0095/files/24007037526.pdf
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/blizzcon_protest_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/2620/3302/files/88379512705.pdf
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/fawavazakakafew.pdf
    • https://cdn.shopify.com/s/files/1/0431/0011/0999/files/33732131994.pdf
    • https://cdn.shopify.com/s/files/1/0434/7366/6213/files/62267710245.pdf
    • https://cdn.shopify.com/s/files/1/0436/9743/8875/files/xisulivig.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99913566500.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_off00009c5b.bin
fe49f45d7e78a19e7a28536b9adec38cc8153d978f779d5045aa259cf4a96b9d
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C5B 5028 bytes
font_01_sfnt_off0000ad68.bin
6fe9fd2a58701663a257c978fef4c0d2d7be60f4682b2a867136db2eec5df4f6
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD68 10604 bytes