Malicious PDF — malware analysis report

Static analysis result for SHA-256 2da4311429d20347…

MALICIOUS

PDF

65.1 KB Created: 2020-09-17 05:51:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 921eb3b92dc6bcc6057b203ddb5fa480 SHA-1: a64b9089cf3922485c37e8ef33a5ce23ab6d7060 SHA-256: 2da4311429d203475beb2dad35a7fc63240ce306868cd91ad8488cc4ca1eecac
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector infrastructure. The document body, though corrupted, contains text related to downloading 'donkey kong 64 apk', suggesting a lure for users seeking game downloads. The primary malicious URL identified is https://ttraff.club/wix?keyword=descargar+donkey+kong+64+apk, which likely serves as a gateway to further malicious content.

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=descargar+donkey+kong+64+apk
    • http://files.diasalinas.org/uploads/1/3/1/4/131438567/busadajuma.pdf
    • http://files.kimberlydark.com/uploads/1/3/0/7/130775628/3d224.pdf
    • http://files.franciscosaezsoto.com/uploads/1/3/2/6/132681464/diritudev.pdf
    • http://dubuden.brosforstevenash.com/uploads/1/3/2/3/132303245/gisusivune_suvosowozinis.pdf
    • https://0e14d9b8-01c2-46a9-b96d-ec427deb04f3.filesusr.com/ugd/c33f71_54fac909f2bf45598b6b99a10ed15c14.pdf?index=true
    • https://57ac3a20-ac83-4f78-b69d-f7631f5a3a5a.filesusr.com/ugd/c7ef1a_000d6982842f4726b85352a1f52f769e.pdf?index=true
    • https://7cf66542-398d-4892-8469-79a22d35a1ec.filesusr.com/ugd/3eed2b_aa093a55968d483aaf2c3d8e5b92d545.pdf?index=true
    • https://d8fd3e7b-91f6-4ea6-b96f-daea95386869.filesusr.com/ugd/269bb8_4cf807ea194346daab06b01f4028272f.pdf?index=true
    • https://b03ce2d2-10de-4088-b480-2e6a7675cf4d.filesusr.com/ugd/09c3c7_9de7656137d94d0f8aafc0ce1f45ff3a.pdf?index=true
    • https://0a72ac02-3412-4e1a-b241-fd793f1c2a8b.filesusr.com/ugd/3aca14_702c9aaa583c404abd0262b1982e00bc.pdf?index=true
    • https://780b72ec-f341-45b6-ab43-dbcc8a884cff.filesusr.com/ugd/10b11f_2567970d275144bda268cd65245777b6.pdf?index=true
    • https://a3563421-6ef2-4d07-a964-4e86a5d986a8.filesusr.com/ugd/429b25_c849834cc2a14146adc79eba39c90664.pdf?index=true
    • 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_off0000c16e.bin
e0ff54e99db37513f1f8692cb753e641526f9e71b463894616594ef306fb6444		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC16E 5616 bytes
font_01_sfnt_off0000d4b2.bin
ce3eadc684d7f6f62606b5df9a69e93faac21f05bdce434c10cdfe189ce0bc8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4B2 10236 bytes

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