Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d7d0ac857ec8f93…

MALICIOUS

PDF

122.9 KB Created: 2020-08-26 05:28:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ce98d587b76539d709b8fc9ce74a292 SHA-1: 0f15ea55dc5004a1d1001da65c5fb282b5180487 SHA-256: 4d7d0ac857ec8f937afa323bc81f50d69fca415dbc338e233da203dbc133ce6b
120 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'. Additionally, it exhibits characteristics of a PDF link farm, suggesting an attempt to distribute malicious content or engage in SEO abuse. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the attack vector. No scripts were extracted from this sample.

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=apocalipsis+de+pedro+pdf
    • http://bodor.farmhousefixer.com/uploads/1/3/2/8/132814838/c8393b01.pdf
    • http://files.sarahann-photography.com/uploads/1/3/1/8/131857847/gelogajaputal.pdf
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/18223404403.pdf
    • https://cdn.shopify.com/s/files/1/0435/8340/6239/files/coraline_graphic_novel_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41267837863.pdf
    • https://cdn.shopify.com/s/files/1/0436/9845/4693/files/avner_friedman_advanced_calculus.pdf
    • https://cdn.shopify.com/s/files/1/0438/4056/9494/files/fomesusenazemifejunovun.pdf
    • https://cdn.shopify.com/s/files/1/0438/6675/1131/files/xasad.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58863311498.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/titisoriwoxivakapir.pdf
    • https://cdn.shopify.com/s/files/1/0436/2492/3298/files/fesiliwi.pdf
    • https://cdn.shopify.com/s/files/1/0437/5465/1799/files/saruruduwosen.pdf
    • https://cdn.shopify.com/s/files/1/0434/6481/8838/files/beechcraft_c23_sundowner_performance.pdf
    • https://cdn.shopify.com/s/files/1/0428/5834/8703/files/zilapikidepatemobozelan.pdf
    • https://cdn.shopify.com/s/files/1/0436/0349/3026/files/11636504238.pdf
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/79422192685.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_off00019998.bin
6a26f0ae38b192e3d4b5feb4ee52e4b907dcee843ad34d22891307928cb55d95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19998 5140 bytes
font_01_sfnt_off0001ab13.bin
552b9fb40a94198ea35f8ae0c97bb0022d41bae92b30c5c05875e1cee61497cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AB13 16552 bytes

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