Malicious PDF — malware analysis report

Static analysis result for SHA-256 422991010c9d1cb8…

MALICIOUS

PDF

38.3 KB Created: 2020-09-05 17:30:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 559f10849c4767f0cd598beb2d1daad5 SHA-1: 3ca7e1bbbda9db9478b117e9c1f037a0c02a5d55 SHA-256: 422991010c9d1cb875d45b5f8fd03bb77cf0ebd562f421b74d6799a039cb26ee
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector infrastructure. The document body and extracted URLs suggest a lure for a game APK download. The primary malicious URL is https://ttraff.club/wix?keyword=advena+game+apk, which likely leads to the distribution of malware.

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.club/wix?keyword=advena+game+apk
    • https://static.usrfiles.com/ugd/d4579c_f378fb11f7f34ddf9869814b2d9f6b83.pdf
    • https://static.usrfiles.com/ugd/b972d5_8cb1861f5cf84a389d76c6ede412c9cf.pdf
    • https://static.usrfiles.com/ugd/b8c837_99708c189bd14f61846832929278c864.pdf
    • https://static.usrfiles.com/ugd/8ff694_912349f315a04bd59546fac3dbc745f4.pdf
    • https://static.usrfiles.com/ugd/078c79_a5395bf02e144a71a1bbd09bd061de98.pdf
    • https://static.usrfiles.com/ugd/d162e3_0ede0feffc6544b7bbfabb128e2c2ed0.pdf
    • https://cdn.shopify.com/s/files/1/0439/2108/0475/files/mobile_app_programming_language.pdf
    • https://cdn.shopify.com/s/files/1/0448/1276/3298/files/bulk_metadata_editor.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/futijagavuf.pdf
    • https://cdn.shopify.com/s/files/1/0438/3545/7696/files/34694549799.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_off000057c2.bin
43c6e570784edfd20e38c11a82160970253253170b5ca3b4d063d1c0e03c42e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57C2 5084 bytes
font_01_sfnt_off00006910.bin
00f85a9c9f3f62725497a00469f9bcaaf829765e5715e6dc0616be518061e17d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6910 10508 bytes

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