Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1cbb6619a974481…

MALICIOUS

PDF

62.1 KB Created: 2020-08-19 08:22:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70dba395a13f0e14a2e9f54b48410254 SHA-1: c927fee435fa920b77c7ff53ea493ac7c7c23572 SHA-256: e1cbb6619a97448114689ae2450c0ea4a07b276dc6078eeb400a194531d8cc32
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, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=benny+blanco+roses+song', is designed to redirect users to malicious content. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs, many hosted on Shopify. While the specific family is not identifiable, the attack pattern suggests a phishing or social engineering lure.

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=benny+blanco+roses+song
    • http://kowekero.velvetandtulle.com/uploads/1/3/2/7/132741555/4014306.pdf
    • http://luluxexi.coopermanselfdefense.com/uploads/1/3/1/6/131637814/6212749.pdf
    • https://cdn.shopify.com/s/files/1/0431/0817/1925/files/sentence_and_fragments_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0428/6952/2599/files/pathfinder_devils_by_cr.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/rumubik.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58143530911.pdf
    • https://cdn.shopify.com/s/files/1/0432/6886/6212/files/kikowenuxikonuzuzipenakab.pdf
    • https://cdn.shopify.com/s/files/1/0440/3272/1046/files/descargar_diccionario_biblico_thompson.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wadilizesiwegokadokepub.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/guwevaj.pdf
    • https://cdn.shopify.com/s/files/1/0437/8283/2280/files/21062651118.pdf
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/91301507163.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00006f41.bin
ac8e51a7c9c19ee8ae1ec8dfb9629071459d4bf3e0d150a63a0cb611af177c0c
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6F41 9720 bytes
font_00_sfnt_off00005e91.bin
da53ddb37cc192e3ae1c13d4f5926d51f19fc6c3292b28033ebea49e1a258a9f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E91 4920 bytes
font_02_sfnt_off00008abd.bin
82e743709985466dcf5d0513eace58c0aadd9ba69c840d4405cca783fdb8eb7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABD 16700 bytes
font_03_sfnt_off0000bdfb.bin
e58e8e8d3617fa2f52d62469859eb662c26c1c1537dc21f5cc6f1aa71eaa6aed
pdf-font-stream PDF embedded font (sfnt) at offset 0xBDFB 18776 bytes
font_04_sfnt_off0000db62.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xDB62 4324 bytes