Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2359c13b9bbb716…

MALICIOUS

PDF

43.1 KB Created: 2020-08-23 22:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc26569d91dae81821d4d60cfb39d2b5 SHA-1: ea11343579abc1e2d2e047e972f89d6a66113fc5 SHA-256: d2359c13b9bbb716f04199dba6647d627e756f0acaeb7065c86ec3f26d395725
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=army+navy+football+2018+uniforms'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and several other PDF links, suggesting an attempt to drive traffic to potentially malicious or deceptive content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=army+navy+football+2018+uniforms
    • http://files.afforablehomesociety.com/uploads/1/3/1/3/131379382/fukanudimejaw-luvusavopem-josobojokegav.pdf
    • http://wegodugo.coasttocoasthauoratrust.com/uploads/1/3/0/7/130776508/nasigegejaxel-mosukakuwesota.pdf
    • http://files.cubanostreetfood.com/uploads/1/3/1/3/131381850/vuxosutoxaful.pdf
    • https://cdn.shopify.com/s/files/1/0429/4914/8838/files/98723617225.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/brain_on_fire_my_month_of_madness_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8385/files/jubilewenogesuvagusew.pdf
    • https://cdn.shopify.com/s/files/1/0463/2710/3643/files/video_cutter_for_pc_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/4495/2471/files/application_of_biotechnology_in_environment.pdf
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/74984933415.pdf
    • https://cdn.shopify.com/s/files/1/0439/2953/4632/files/the_ultimate_beginners_guide_to_real_estate_investing.pdf
    • https://cdn.shopify.com/s/files/1/0437/8879/6053/files/73258996010.pdf
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/63481199339.pdf
    • https://cdn.shopify.com/s/files/1/0431/4647/7725/files/zebubimeduwolosofesil.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0316/files/79088576208.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_off00006845.bin
f035e8a356a7a49c82596274e3339862389dec3c4fe80e883fc24a3c6991a404
pdf-font-stream PDF embedded font (sfnt) at offset 0x6845 5724 bytes
font_01_sfnt_off00007bb1.bin
e8f5f4ce80fa3dbccc2dc8a04a5d3679a18f6016a61c30b653dac4c4ab55f663
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB1 10564 bytes