Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e708b6f4d0e74d2…

MALICIOUS

PDF

52.8 KB Created: 2020-08-24 09:11:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: efa4ce4b4e27903a1a8cb83f3c686514 SHA-1: 21537796967a2d58f3edca9338cc4506bf84af2f SHA-256: 1e708b6f4d0e74d2c2dfc4004469a2daae0e6bc099cbdb1851d3515f85ab9eb1
130 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bazaart+para+android'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0434/5711/8374/files/gusofivezatibuvunoda.pdf'. The document body also contains these URLs, suggesting an attempt to trick the user into clicking and downloading further content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bazaart+para+android
    • http://files.cplumber.net/uploads/1/3/2/3/132302924/5721599.pdf
    • http://files.mind4age.com/uploads/1/3/1/8/131856318/zuwulerufalufalum.pdf
    • http://nefopode.troyboatclub.org/uploads/1/3/0/7/130776885/1261601.pdf
    • http://gafagabe.woodrockanimalrescue.com/uploads/1/3/2/3/132302815/sivazozize_sodilija_nejoropi.pdf
    • http://files.seasonallysourced.com/uploads/1/3/1/3/131380953/rebatelajiluju_junezubug_zojowuzo_fetoliko.pdf
    • https://cdn.shopify.com/s/files/1/0434/5711/8374/files/gusofivezatibuvunoda.pdf
    • https://cdn.shopify.com/s/files/1/0435/9539/9325/files/nosiniragon.pdf
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/molizog.pdf
    • https://cdn.shopify.com/s/files/1/0431/0351/8882/files/78035215437.pdf
    • https://cdn.shopify.com/s/files/1/0437/2096/6293/files/koburoxofim.pdf
    • https://cdn.shopify.com/s/files/1/0448/0322/7809/files/71581503675.pdf
    • https://cdn.shopify.com/s/files/1/0463/2500/6497/files/cheerleader_cartoon_vector_free.pdf
    • https://cdn.shopify.com/s/files/1/0441/2047/3752/files/pdf_editor_freeware_download.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b26.bin
3cad623b3293cc149c799a13fb24458ab8796662d1e9aa0c18bca7075419aa9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B26 4512 bytes
font_01_sfnt_off00007a79.bin
51db60fd0bd9f8c13a50c66d892c6104976e7b47d63702b9f9f26e66bf8f786d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A79 11240 bytes
font_02_sfnt_off0000a0cb.bin
41f057d63cb05190378ad5da234017b66b1cdf9ad16b6093bbc07ea70ceea449
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0CB 16860 bytes
font_03_sfnt_off0000b85f.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xB85F 4324 bytes