Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f719ad25ab455f2…

MALICIOUS

PDF

52.4 KB Created: 2020-08-21 07:56:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be78cd4789978136fe84377a0c9c2d7e SHA-1: 72a858d1791dd5c4a00c99f1e29e71d6ca212cd9 SHA-256: 1f719ad25ab455f247697a6afa7a9dbcdf70f6a28f5634f6cd09c6213248c06f
150 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.ru/pify?keyword=rpg+toram+online+mod+menu+apk', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it's intended to direct users to potentially harmful content. The presence of multiple Shopify links, while some are benign, contributes to the overall SEO-based lure strategy.

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.ru/pify?keyword=rpg+toram+online+mod+menu+apk
    • http://jeveson.nanpokerwinski.com/uploads/1/3/0/7/130775778/6280942.pdf
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/pojux.pdf
    • https://cdn.shopify.com/s/files/1/0437/2663/5157/files/writing_academic_english_fourth_edition_answer_key_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/2010/7428/files/rollercoaster_tycoon_2_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/78784053544.pdf
    • https://cdn.shopify.com/s/files/1/0431/0034/0381/files/safidupirotufutewa.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/68851772533.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3768/files/lisoresigejugaxejoxenedas.pdf
    • https://cdn.shopify.com/s/files/1/0429/2942/2499/files/nituritakosu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0956/3045/files/john_wick_download.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_off00007075.bin
6f6c5a8fb5e62cfd2b6ff76f758e0f05a98695d5bac735cd019a42cb5e5649ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7075 2952 bytes
font_01_sfnt_off00007b02.bin
4e5532db049eb9d24fcd4fe38767deaa59b1c50d33caa3d5ba6464381eb64768		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B02 5172 bytes
font_02_sfnt_off00008c85.bin
8da9b19d0aa49c0af98010aaa270d776b397f2cb614b9d1611d47fedd591147c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C85 10296 bytes
font_03_sfnt_off0000afd1.bin
c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD1 16092 bytes

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