Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5aba84f52643996…

MALICIOUS

PDF

52.8 KB Created: 2020-08-24 15:27:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f4f0c0d935ba3514f82991129dbdb34 SHA-1: 597bb7954795c4611c99b2321e65b68c905cb3ee SHA-256: a5aba84f5264399631fe53bd50324d2674b96c580f4ab79079d2aa82d863050c
150 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, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=sathi+bengali+movie+hd+video+free', is designed to lure users with a movie title. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains. The ML classifier strongly flagged this PDF as malicious.

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.cc/pify?keyword=sathi+bengali+movie+hd+video+free
    • http://pesud.menofwinds.com/uploads/1/3/1/0/131070447/336428.pdf
    • http://zuwug.czsworld.com/uploads/1/3/0/9/130969747/buzir.pdf
    • http://files.woodland-creative.com/uploads/1/3/1/8/131871871/825af64b.pdf
    • http://rulapagun.rlx.space/uploads/1/3/1/3/131380600/setedofafa-bupirik.pdf
    • http://files.environmentallaw-teach.org/uploads/1/3/1/6/131606256/fudiwid.pdf
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/70121218918.pdf
    • https://cdn.shopify.com/s/files/1/0432/3262/4797/files/vintila_corbul_caderea_constantinopolelui.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/gememis.pdf
    • https://cdn.shopify.com/s/files/1/0430/5226/9717/files/62557174892.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/clinical_practice_guidelines_nursing_canada.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3553/files/91558850563.pdf
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/22028748065.pdf
    • https://cdn.shopify.com/s/files/1/0451/8245/1861/files/do_it_again_elevation_worship_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0449/4550/6459/files/early_childhood_development_stages.pdf
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/29539760691.pdf
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/66263077956.pdf
    • https://cdn.shopify.com/s/files/1/0430/8969/0773/files/sewurimakamig.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_off000066d6.bin
a627eb3357b5f2ac1c0cf9a2c54e612f59b34977b7b5e842328bb0976c36e38d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66D6 5448 bytes
font_01_sfnt_off0000792d.bin
048cefd967cab45721d896235bf08720adc2a337ca9c30c9e36362d860ef24b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x792D 6120 bytes
font_02_sfnt_off00008d05.bin
ebe6033b5d91c0eec6bf6a7482113821134b9322d5c9cdd2aff6cc6556729072		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D05 10188 bytes
font_03_sfnt_off0000b033.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB033 16164 bytes

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