Malicious PDF — malware analysis report

Static analysis result for SHA-256 c96695d7d22612f2…

MALICIOUS

PDF

60.4 KB Created: 2020-08-03 02:38:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a4c42489bb089b2dfbabc4cc78b5f90 SHA-1: f24a6ace49864b6690376a2a94fbd145443b3102 SHA-256: c96695d7d22612f291f917aa51224cd3d4ab7353c5d597c5415d444112c7bce0
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links. One of these links, 'https://ttraff.com/pify?keyword=gen+4+ou+team', is identified as a malicious redirector. The document's primary purpose appears to be directing users to this malicious infrastructure, likely for phishing or to download further malware. No scripts were extracted, limiting the analysis of the exact payload.

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=gen+4+ou+team
    • http://files.storyneeds.com/uploads/1/3/1/3/131380109/6419359.pdf
    • http://files.rockymountainjackpotshowseries.com/uploads/1/3/1/4/131438758/gukojoz_japuxuzubovuse_lolawebulaxuj_kitusodezaxolu.pdf
    • http://files.hbcindy.com/uploads/1/3/1/8/131856041/sisema-sokeri-rodirupijef-veguxuvagobufi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8516/files/23727967444.pdf
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/mipamekuzanabugegadi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9567/8357/files/11298082076.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/96577759355.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/73179591605.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/steamboat_snow_report.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/tafejo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/22147531638.pdf
    • https://cdn.shopify.com/s/files/1/0428/2515/4716/files/25372492900.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/dodetubobadigopovowogawu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/93915679702.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1188956193.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_off0000a61e.bin
b0e8cdbb511e9fb7135eaa6cdbbfb1f637f6b07c2feb48b9edaad889d8601bf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA61E 4644 bytes
font_01_sfnt_off0000b5e2.bin
382cbd1126b6c43b6199ffc8d3df6b58ffe5d17c16d907d1e029101b8fe93a55		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5E2 15100 bytes

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