Malicious PDF — malware analysis report

Static analysis result for SHA-256 e030eec0b31e15ef…

MALICIOUS

PDF

64.4 KB Created: 2020-07-30 18:46:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c531424f94258d2b23c3beac54ce3d6 SHA-1: 6575f35e524593b1da1f98e81f9924b63123bd76 SHA-256: e030eec0b31e15efe6bb0f2e7532a6c75154ee3716359c27e3d3915d3ff4c328
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'visa on arrival thailand pdf', suggesting a lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, including one hosted on Shopify. The primary malicious IOC is the redirector URL.

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=visa+on+arrival+thailand+pdf
    • http://files.bneiakivadetroit.org/uploads/1/3/1/0/131070230/4933318.pdf
    • http://files.thekoalaproject.org/uploads/1/3/0/8/130873997/rotunakotusonir.pdf
    • http://files.chslibrary.info/uploads/1/3/2/3/132303010/xomebelo-xutubose-deroxuxura-dakesomuta.pdf
    • http://files.mendedhearts117.org/uploads/1/3/1/6/131606733/riwofu-gaguletikij-dutofupopun.pdf
    • http://files.mutualdialogue.co.uk/uploads/1/3/0/7/130739837/sasixuruton-gegejisugimak-vaxamuninip-kowunizobazo.pdf
    • http://files.mutu
    • https://cdn.shopify.com/s/files/1/0429/7788/6367/files/panatidupunuza.pdf
    • https://cdn.shopify.com/s/files/1/0428/4337/3735/files/darusigepotezifeniwora.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/ribilowamutirerotaror.pdf
    • https://cdn.shopify.com/s/files/1/0433/5829/0070/files/wepos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62042090741.pdf
    • https://cdn.shopify.com/s/files/1/0427/8855/2870/files/kaxejuzi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65069223210.pdf
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/35461137895.pdf
    • https://cdn.shopify.com/s/files/1/0428/1932/2022/files/jalixad.pdf
    • https://cdn.shopify.com/s/files/1/0431/0227/3697/files/16432615752.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a3cf.bin
3856c58c20922c0dcb045e7f444d042e36e749f149c11c5e6eeb58e0174d1fa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3CF 4824 bytes
font_01_sfnt_off0000b414.bin
05b5665bbb7b997d1ae9ecceb27f61d4eaf9c8c7605e304fe0078fae5243d49f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB414 8580 bytes
font_02_sfnt_off0000cc28.bin
7b1f0414cf1c22ec9bfb59c9c7c9b25881cdac718f005e3c15524a3ca3d724eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC28 12116 bytes

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