Malicious PDF — malware analysis report

Static analysis result for SHA-256 42833cb46ee4ff26…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 13:46:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad8b9e9aec4475caf5d1a5291676cbc4 SHA-1: abd0eb212f00bbb00032ea09e935eda6bc8eba4b SHA-256: 42833cb46ee4ff264f3c891744a8a41a2ae1d33766ac1e3060fb649f94d418f4
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'software espiao celular android gratis' and the malicious URL itself, suggesting a lure for potentially harmful content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 2

  • 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.
  • 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=software+espi%25C3%25A3o+celular+android+gratis
    • http://zubak.mancalamonk.com/uploads/1/3/1/4/131406071/repaputev.pdf
    • https://cdn.shopify.com/s/files/1/0428/4229/2390/files/44807658003.pdf
    • https://cdn.shopify.com/s/files/1/0431/1977/1799/files/40976989403.pdf
    • https://cdn.shopify.com/s/files/1/0431/2779/9957/files/47918978410.pdf
    • https://cdn.shopify.com/s/files/1/0437/2076/9685/files/modal_auxiliary_verbs_in_urdu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5820/7643/files/virginia_schedule_adj.pdf
    • https://cdn.shopify.com/s/files/1/0434/6963/5746/files/xinitareruko.pdf
    • https://cdn.shopify.com/s/files/1/0437/8433/9613/files/bc_rental_agreement_form.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_off00005475.bin
e1f03eb125fccd0bfbc5dbd83c8e25a13d3e848ae297e978e8835a0f168b8837		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5475 5720 bytes
font_01_sfnt_off00006761.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6761 1800 bytes
font_02_sfnt_off00006fee.bin
8bcbf12dd24a4f7c907e1102a66a0955b6e7b2dd044de022225e3bab066beccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEE 9920 bytes
font_03_sfnt_off000091f2.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91F2 4324 bytes

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