Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca08f82c06c350b8…

MALICIOUS

PDF

69.3 KB Created: 2020-07-25 23:47:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce4891a69074580c4b97f3be42f88d9a SHA-1: 4d8815f83978734d9b35a1ca0cc9ee44c04fb853 SHA-256: ca08f82c06c350b88820d78892781505c038b652b65eb21f567a574a220ca040
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a free admin panel template. The sample also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of it being used for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=simple+admin+panel+template+php+free
    • http://files.sadhanayama.com/uploads/1/3/0/7/130776016/xuruwanuli-sepajujowij-mufeg-gebubizunesipel.pdf
    • http://files.theberryfairy.org/uploads/1/3/1/8/131856545/8478456.pdf
    • http://files.leahbiadoluisphotography.com/uploads/1/3/2/7/132740618/4183310.pdf
    • http://files.mbsportnutritionnetwork.org/uploads/1/3/1/0/131070351/ruzosowud.pdf
    • http://files.raewyncaisley.com/uploads/1/3/2/6/132680784/sibutubatokune_xujowawase_rudavelol.pdf
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/girawojepanolujinuravosoz.pdf
    • https://cdn.shopify.com/s/files/1/0440/8305/2696/files/xonebanoxisadeboxida.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/20495742573.pdf
    • https://cdn.shopify.com/s/files/1/0434/6983/2357/files/98386446087.pdf
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/50235740505.pdf
    • https://cdn.shopify.com/s/files/1/0434/0714/7166/files/45077941719.pdf
    • https://cdn.shopify.com/s/files/1/0431/2878/3002/files/65289882978.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10588857949.pdf
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/fukene.pdf
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/ledolupepunen.pdf
    • https://cdn.shopify.com/s/files/1/0429/8070/4405/files/ganepuba.pdf
    • https://cdn.shopify.com/s/files/1/0430/1013/0073/files/95536413796.pdf
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/3311231217.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_off0000cc95.bin
7eb7fefea8f6866ec29605ea8f57329b1c799fea06ccffa983890b0c747cda8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC95 4884 bytes
font_01_sfnt_off0000dce8.bin
b26e24507de4c0e31dfd510331217e3e72468f223837bf4dc10b27a1c9426391		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE8 13448 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.