Malicious PDF — malware analysis report

Static analysis result for SHA-256 5829d0129b0b6569…

MALICIOUS

PDF

44.4 KB Created: 2020-08-14 23:05:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c9adc0758d0e2b5bfe495f5bbb70794 SHA-1: 898f004f6225f5a7411121906f9818ed8afb5223 SHA-256: 5829d0129b0b65691dd49044f4207efb2024a329f5258d9c980f8619061cc391
120 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, which is the primary mechanism for luring victims. The document body, though heavily obfuscated, contains the same suspicious URL. The PDF also exhibits characteristics of a link farm, likely for SEO poisoning, further supporting the malicious intent of redirecting users to potentially harmful sites.

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/wb?keyword=gas%20turbines%20pdf%20nptel
    • http://files.thr3efold.com/uploads/1/3/1/6/131637953/2563860.pdf
    • http://tuvoxajeb.donkerandguests.com/uploads/1/3/1/4/131407406/nitatadusaso_nubukobulo_papasosof_gejonaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/50_tons_de_cinza_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6371/3690/files/define_audio_visual_aids.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/wutokirilirega.pdf
    • https://cdn.shopify.com/s/files/1/0433/0497/6548/files/basic_accounting_principles_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/7193/8453/files/46416217494.pdf
    • https://cdn.shopify.com/s/files/1/0438/7281/3211/files/56677320116.pdf
    • https://cdn.shopify.com/s/files/1/0432/3944/0543/files/gidejojulere.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1039/files/canon_scanner_lide_220_software.pdf
    • https://cdn.shopify.com/s/files/1/0439/4654/1211/files/nuworilamogomim.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/3284345038.pdf
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/vonedemidifakevugol.pdf
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/12193248595.pdf
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/1231025824.pdf
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/11240257564.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_off00006657.bin
804a8e764153ae3a1decff9c67fa0ce8e075005b6b54324a75c6089e29dcee98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6657 5208 bytes
font_01_sfnt_off0000781b.bin
16f889e4ca9dd62852c05f693069cc537a18348c35568eb5d202baf8e09a8bef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x781B 14568 bytes

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